Re: Form questions

[Daniel Watrous]

I've made a lot of progress and been through chapters 9 and 10 of Wicket
Free Guide, but I'm still stumped on point #2, pre-populating the form.
Here's what I have right now:

public class CnavForm extends Form {

@Inject private CnavUrlDAO cnavUrlDAO;

public CnavForm(String id) {
super(id);
CnavUrl cnavUrl = new MorphiaCnavUrl();
setModel(new Model((Serializable) cnavUrl));

add(new TextField(url, new PropertyModel(cnavUrl, URL))
.setRequired(true)
.add(new UrlValidator()));
add(new HiddenField(objectid, new PropertyModel(cnavUrl, id)));

add(new Button(publish) {
@Override
public void onSubmit() {
CnavUrl cnavUrl = (CnavUrl) CnavForm.this.getModelObject();
// check for existing record to know if this is a create or
update
if (((MorphiaCnavUrlModel)cnavUrl).getId() == null) {
// create
cnavUrlDAO.save(cnavUrl);
} else {
// update
cnavUrlDAO.save(cnavUrl);
}
}
});
}
}

I need to know how to do two things.
1) how to link to the page that displays the form, and pass it the ID for
the record I want to edit
2) load the object from the database and have it replace the model I create
in the constructor

Obviously I can make a database call and get the object. Is the constructor
called every time the page is requested, so that I could check for an ID
and either create the model or load it from the database? If so, then I
just need help with #1.

Thanks,
Daniel


On Wed, Jul 17, 2013 at 10:19 AM, Daniel Watrous dwmaill...@gmail.comwrote:

 I think I'm getting it now. The Form needs to be embedded in a panel for
 the type of inclusion that I'm interested in.

 I created a CnavFormPanel.java and changed CnavForm.html to
 CnavFormPanel.html. I left CnavForm.java alone.

 In CnavModify.java I removed this

 Form form = new CnavForm(cnavFormArea);
 add(form);

 And added this

 add(new CnavFormPanel(cnavFormArea));

 That works. Thanks for your help.

 Daniel


 On Wed, Jul 17, 2013 at 10:07 AM, Daniel Watrous dwmaill...@gmail.comwrote:

 I can make it work if I put the markup from CnavForm.html directly into
 CnavModify, but the form is not as reusable then. I would have to duplicate
 the markup for other pages that use the same form...

 Dnaiel


 On Wed, Jul 17, 2013 at 9:55 AM, Daniel Watrous dwmaill...@gmail.comwrote:

 That's what I tried to do. I created
 CnavForm.java and CnavForm.html. In the latter file I have this
   wicket:panel
 form wicket:id=cnavForm...
 // form details
 /form
 /wicket:panel

 Then I have CnavModify.java and CnavModify.html. You already see what I
 have in CnavModify.java from my last email. My CnavModify.html has this.
 wicket:extend
 span wicket:id=cnavFormAreaHere's the form/span
 /wicket:extend

 Rather than render I'm getting this error:
 Last cause: Component [cnavFormArea] (path = [0:cnavFormArea]) must be
 applied to a tag of type [form], not: 'span wicket:id=cnavFormArea
 id=cnavFormArea3' (line 0, column 0)

 I'll keep trying and report back when I figure it out.

 Daniel


 On Tue, Jul 16, 2013 at 10:50 PM, Paul Bors p...@bors.ws wrote:

 Wicket is a MVC component driven framework similar to Swing.
 In short, what you want to do is create your own Panel with that form
 file
 of yours and add it to another Panel as a child.

 See chapter 4 Keeping control over HTML of the Wicket Free Guide at:
 http://code.google.com/p/wicket-guide/

 Also available from under the Learn section as the Books link on the
 right
 side navigation section on Wicket's home page at:
 http://wicket.apache.org/learn/books/

 ~ Thank you,
   Paul Bors

 -Original Message-
 From: Daniel Watrous [mailto:dwmaill...@gmail.com]
 Sent: Tuesday, July 16, 2013 7:13 PM
 To: users@wicket.apache.org
 Subject: Re: Form questions

 Thanks Paul and Sven. I got the form to work and available in the
 onSubmit
 handler.

 Now I'm interested in splitting the form out into it's one file. So I
 created a class that has nothing more than the form, but I'm not sure
 how to
 include this into a page.

 In my class I do this:

 public class CnavModify extends ConsoleBasePage {

 public CnavModify(PageParameters parameters) {
 super(parameters);

 Form form = new CnavForm(cnavFormArea);
 add(form);
 }
 }

 My CnavModify obviously extends a base page. What do I put inside the
 wicket:extend tag to have the form render?

 Daniel


 On Tue, Jul 16, 2013 at 12:00 AM, Sven Meier s...@meiers.net wrote:

  Hi,
 
 
   Some problems I can't figure out. The code to create the button
  complains
  that it requires a CnavUrl but gets back a String.
 
 add(new Button(publish, model) {
 @Override
 public void onSubmit

Re: Form questions

[Daniel Watrous]

That's what I tried to do. I created
CnavForm.java and CnavForm.html. In the latter file I have this
  wicket:panel
form wicket:id=cnavForm...
// form details
/form
/wicket:panel

Then I have CnavModify.java and CnavModify.html. You already see what I
have in CnavModify.java from my last email. My CnavModify.html has this.
wicket:extend
span wicket:id=cnavFormAreaHere's the form/span
/wicket:extend

Rather than render I'm getting this error:
Last cause: Component [cnavFormArea] (path = [0:cnavFormArea]) must be
applied to a tag of type [form], not: 'span wicket:id=cnavFormArea
id=cnavFormArea3' (line 0, column 0)

I'll keep trying and report back when I figure it out.

Daniel


On Tue, Jul 16, 2013 at 10:50 PM, Paul Bors p...@bors.ws wrote:

 Wicket is a MVC component driven framework similar to Swing.
 In short, what you want to do is create your own Panel with that form file
 of yours and add it to another Panel as a child.

 See chapter 4 Keeping control over HTML of the Wicket Free Guide at:
 http://code.google.com/p/wicket-guide/

 Also available from under the Learn section as the Books link on the right
 side navigation section on Wicket's home page at:
 http://wicket.apache.org/learn/books/

 ~ Thank you,
   Paul Bors

 -Original Message-
 From: Daniel Watrous [mailto:dwmaill...@gmail.com]
 Sent: Tuesday, July 16, 2013 7:13 PM
 To: users@wicket.apache.org
 Subject: Re: Form questions

 Thanks Paul and Sven. I got the form to work and available in the onSubmit
 handler.

 Now I'm interested in splitting the form out into it's one file. So I
 created a class that has nothing more than the form, but I'm not sure how
 to
 include this into a page.

 In my class I do this:

 public class CnavModify extends ConsoleBasePage {

 public CnavModify(PageParameters parameters) {
 super(parameters);

 Form form = new CnavForm(cnavFormArea);
 add(form);
 }
 }

 My CnavModify obviously extends a base page. What do I put inside the
 wicket:extend tag to have the form render?

 Daniel


 On Tue, Jul 16, 2013 at 12:00 AM, Sven Meier s...@meiers.net wrote:

  Hi,
 
 
   Some problems I can't figure out. The code to create the button
  complains
  that it requires a CnavUrl but gets back a String.
 
 add(new Button(publish, model) {
 @Override
 public void onSubmit() {
 CnavUrl cnavUrl = (CnavUrl) getModelObject();
 System.out.println(publish);
 }
 });
 
 
  a Button always has a IModelString to fill the value attribute. Note
  that in #onSubmit() you're getting the model object of the button, not
  of your form.
  You can write:
 
  add(new Button(publish, model) {
 @Override
 public void onSubmit() {
 CnavUrl cnavUrl = (CnavUrl) MyForm.this.getModelObject();
 System.out.println(publish);
 }
 });
 
 
  Using generic types in your code should help you.
 
  Sven
 
 
 
  On 07/15/2013 11:41 PM, Daniel Watrous wrote:
 
  Hello,
 
  I'm interested in creating a single Form that will accommodate the
  following use cases
  1) display blank for creating new records
  2) pre-populate for editing existing records
  3) map submitted values on to an existing domain object
  4) accommodate two actions, Save Draft -or- Publish
 
  I'm following Wicket in Action and within my Form constructor I
  create my model, like this
 
   CnavUrl cnavUrl = new BasicCnavUrl();
   IModel model = new Model((Serializable) cnavUrl);
   setModel(model);
 
  I then use PropertyModel
 
   add(new TextField(url, new PropertyModel(cnavUrl,
  url)));
 
  For the two actions, I'm creating the Button objects like this
 
   add(new Button(publish, model) {
   @Override
   public void onSubmit() {
   CnavUrl cnavUrl = (CnavUrl) getModelObject();
   System.out.println(publish);
   }
   });
 
  Some problems I can't figure out. The code to create the button
  complains that it requires a CnavUrl but gets back a String.
 
  It seems that a new BasicCnavUrl is created once with the Form. What
  happens on subsequent calls? Can I always expect my model to have the
  data from the current form submission?
 
  Is there a best way to incorporate the idea of an edit, where the
  model is pre-populated from a data source and pre-fills the Form fields?
 
  Thanks,
  Daniel
 
 
 
  --**--**--
  --- To unsubscribe, e-mail:
  users-unsubscribe@wicket.**apache.orgusers-unsubscribe@wicket.apache.
  org For additional commands, e-mail: users-h...@wicket.apache.org
 
 


 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org

Re: Form questions

[Daniel Watrous]

I can make it work if I put the markup from CnavForm.html directly into
CnavModify, but the form is not as reusable then. I would have to duplicate
the markup for other pages that use the same form...

Dnaiel


On Wed, Jul 17, 2013 at 9:55 AM, Daniel Watrous dwmaill...@gmail.comwrote:

 That's what I tried to do. I created
 CnavForm.java and CnavForm.html. In the latter file I have this
   wicket:panel
 form wicket:id=cnavForm...
 // form details
 /form
 /wicket:panel

 Then I have CnavModify.java and CnavModify.html. You already see what I
 have in CnavModify.java from my last email. My CnavModify.html has this.
 wicket:extend
 span wicket:id=cnavFormAreaHere's the form/span
 /wicket:extend

 Rather than render I'm getting this error:
 Last cause: Component [cnavFormArea] (path = [0:cnavFormArea]) must be
 applied to a tag of type [form], not: 'span wicket:id=cnavFormArea
 id=cnavFormArea3' (line 0, column 0)

 I'll keep trying and report back when I figure it out.

 Daniel


 On Tue, Jul 16, 2013 at 10:50 PM, Paul Bors p...@bors.ws wrote:

 Wicket is a MVC component driven framework similar to Swing.
 In short, what you want to do is create your own Panel with that form file
 of yours and add it to another Panel as a child.

 See chapter 4 Keeping control over HTML of the Wicket Free Guide at:
 http://code.google.com/p/wicket-guide/

 Also available from under the Learn section as the Books link on the right
 side navigation section on Wicket's home page at:
 http://wicket.apache.org/learn/books/

 ~ Thank you,
   Paul Bors

 -Original Message-
 From: Daniel Watrous [mailto:dwmaill...@gmail.com]
 Sent: Tuesday, July 16, 2013 7:13 PM
 To: users@wicket.apache.org
 Subject: Re: Form questions

 Thanks Paul and Sven. I got the form to work and available in the onSubmit
 handler.

 Now I'm interested in splitting the form out into it's one file. So I
 created a class that has nothing more than the form, but I'm not sure how
 to
 include this into a page.

 In my class I do this:

 public class CnavModify extends ConsoleBasePage {

 public CnavModify(PageParameters parameters) {
 super(parameters);

 Form form = new CnavForm(cnavFormArea);
 add(form);
 }
 }

 My CnavModify obviously extends a base page. What do I put inside the
 wicket:extend tag to have the form render?

 Daniel


 On Tue, Jul 16, 2013 at 12:00 AM, Sven Meier s...@meiers.net wrote:

  Hi,
 
 
   Some problems I can't figure out. The code to create the button
  complains
  that it requires a CnavUrl but gets back a String.
 
 add(new Button(publish, model) {
 @Override
 public void onSubmit() {
 CnavUrl cnavUrl = (CnavUrl) getModelObject();
 System.out.println(publish);
 }
 });
 
 
  a Button always has a IModelString to fill the value attribute. Note
  that in #onSubmit() you're getting the model object of the button, not
  of your form.
  You can write:
 
  add(new Button(publish, model) {
 @Override
 public void onSubmit() {
 CnavUrl cnavUrl = (CnavUrl)
 MyForm.this.getModelObject();
 System.out.println(publish);
 }
 });
 
 
  Using generic types in your code should help you.
 
  Sven
 
 
 
  On 07/15/2013 11:41 PM, Daniel Watrous wrote:
 
  Hello,
 
  I'm interested in creating a single Form that will accommodate the
  following use cases
  1) display blank for creating new records
  2) pre-populate for editing existing records
  3) map submitted values on to an existing domain object
  4) accommodate two actions, Save Draft -or- Publish
 
  I'm following Wicket in Action and within my Form constructor I
  create my model, like this
 
   CnavUrl cnavUrl = new BasicCnavUrl();
   IModel model = new Model((Serializable) cnavUrl);
   setModel(model);
 
  I then use PropertyModel
 
   add(new TextField(url, new PropertyModel(cnavUrl,
  url)));
 
  For the two actions, I'm creating the Button objects like this
 
   add(new Button(publish, model) {
   @Override
   public void onSubmit() {
   CnavUrl cnavUrl = (CnavUrl) getModelObject();
   System.out.println(publish);
   }
   });
 
  Some problems I can't figure out. The code to create the button
  complains that it requires a CnavUrl but gets back a String.
 
  It seems that a new BasicCnavUrl is created once with the Form. What
  happens on subsequent calls? Can I always expect my model to have the
  data from the current form submission?
 
  Is there a best way to incorporate the idea of an edit, where the
  model is pre-populated from a data source and pre-fills the Form
 fields?
 
  Thanks,
  Daniel
 
 
 
  --**--**--
  --- To unsubscribe, e-mail:
  users-unsubscribe@wicket.**apache.orgusers

Re: Form questions

[Daniel Watrous]

I think I'm getting it now. The Form needs to be embedded in a panel for
the type of inclusion that I'm interested in.

I created a CnavFormPanel.java and changed CnavForm.html to
CnavFormPanel.html. I left CnavForm.java alone.

In CnavModify.java I removed this

Form form = new CnavForm(cnavFormArea);
add(form);

And added this

add(new CnavFormPanel(cnavFormArea));

That works. Thanks for your help.

Daniel


On Wed, Jul 17, 2013 at 10:07 AM, Daniel Watrous dwmaill...@gmail.comwrote:

 I can make it work if I put the markup from CnavForm.html directly into
 CnavModify, but the form is not as reusable then. I would have to duplicate
 the markup for other pages that use the same form...

 Dnaiel


 On Wed, Jul 17, 2013 at 9:55 AM, Daniel Watrous dwmaill...@gmail.comwrote:

 That's what I tried to do. I created
 CnavForm.java and CnavForm.html. In the latter file I have this
   wicket:panel
 form wicket:id=cnavForm...
 // form details
 /form
 /wicket:panel

 Then I have CnavModify.java and CnavModify.html. You already see what I
 have in CnavModify.java from my last email. My CnavModify.html has this.
 wicket:extend
 span wicket:id=cnavFormAreaHere's the form/span
 /wicket:extend

 Rather than render I'm getting this error:
 Last cause: Component [cnavFormArea] (path = [0:cnavFormArea]) must be
 applied to a tag of type [form], not: 'span wicket:id=cnavFormArea
 id=cnavFormArea3' (line 0, column 0)

 I'll keep trying and report back when I figure it out.

 Daniel


 On Tue, Jul 16, 2013 at 10:50 PM, Paul Bors p...@bors.ws wrote:

 Wicket is a MVC component driven framework similar to Swing.
 In short, what you want to do is create your own Panel with that form
 file
 of yours and add it to another Panel as a child.

 See chapter 4 Keeping control over HTML of the Wicket Free Guide at:
 http://code.google.com/p/wicket-guide/

 Also available from under the Learn section as the Books link on the
 right
 side navigation section on Wicket's home page at:
 http://wicket.apache.org/learn/books/

 ~ Thank you,
   Paul Bors

 -Original Message-
 From: Daniel Watrous [mailto:dwmaill...@gmail.com]
 Sent: Tuesday, July 16, 2013 7:13 PM
 To: users@wicket.apache.org
 Subject: Re: Form questions

 Thanks Paul and Sven. I got the form to work and available in the
 onSubmit
 handler.

 Now I'm interested in splitting the form out into it's one file. So I
 created a class that has nothing more than the form, but I'm not sure
 how to
 include this into a page.

 In my class I do this:

 public class CnavModify extends ConsoleBasePage {

 public CnavModify(PageParameters parameters) {
 super(parameters);

 Form form = new CnavForm(cnavFormArea);
 add(form);
 }
 }

 My CnavModify obviously extends a base page. What do I put inside the
 wicket:extend tag to have the form render?

 Daniel


 On Tue, Jul 16, 2013 at 12:00 AM, Sven Meier s...@meiers.net wrote:

  Hi,
 
 
   Some problems I can't figure out. The code to create the button
  complains
  that it requires a CnavUrl but gets back a String.
 
 add(new Button(publish, model) {
 @Override
 public void onSubmit() {
 CnavUrl cnavUrl = (CnavUrl) getModelObject();
 System.out.println(publish);
 }
 });
 
 
  a Button always has a IModelString to fill the value attribute. Note
  that in #onSubmit() you're getting the model object of the button, not
  of your form.
  You can write:
 
  add(new Button(publish, model) {
 @Override
 public void onSubmit() {
 CnavUrl cnavUrl = (CnavUrl)
 MyForm.this.getModelObject();
 System.out.println(publish);
 }
 });
 
 
  Using generic types in your code should help you.
 
  Sven
 
 
 
  On 07/15/2013 11:41 PM, Daniel Watrous wrote:
 
  Hello,
 
  I'm interested in creating a single Form that will accommodate the
  following use cases
  1) display blank for creating new records
  2) pre-populate for editing existing records
  3) map submitted values on to an existing domain object
  4) accommodate two actions, Save Draft -or- Publish
 
  I'm following Wicket in Action and within my Form constructor I
  create my model, like this
 
   CnavUrl cnavUrl = new BasicCnavUrl();
   IModel model = new Model((Serializable) cnavUrl);
   setModel(model);
 
  I then use PropertyModel
 
   add(new TextField(url, new PropertyModel(cnavUrl,
  url)));
 
  For the two actions, I'm creating the Button objects like this
 
   add(new Button(publish, model) {
   @Override
   public void onSubmit() {
   CnavUrl cnavUrl = (CnavUrl) getModelObject();
   System.out.println(publish);
   }
   });
 
  Some problems I can't figure out. The code to create the button
  complains that it requires a CnavUrl but gets back

FeedbackPanel customization

[Daniel Watrous]

Hi,

I'm working on a modification of the FeedbackPanel to work better with my
theme. I would like to prevent the class for the actual message from being
appended to. Right now MessageListView is a private final class and
the populateItem adds an AttributeModifier to both the label and the
listItem.

I know I can override getCSSClass, but that still sets it for both the
label and listItem.

I can't extend just MessageListView since it's private and final. Even if I
could subclass that, the FeedbackPanel constructor is called before my
subclass of FeedbackPanel, so that it has already used the original
MessageListView.

Can you think of a clean way to eliminate the AttributeListener on listItem?

Daniel

Re: FeedbackPanel customization

[Daniel Watrous]

Hi Sebastian,

I looked at your example, but it's not quite what I need. I want the style
applied to 'messages' but not to 'message'. Your example seems to allow for
a style to be applied to 'message' and not to 'messages'

I've tried implementing it, but that's where I'm stuck. Am I missing
something?

Daniel


On Wed, Jul 17, 2013 at 3:20 PM, Sebastien seb...@gmail.com wrote:

 Hi Daniel,

 In such a case, you have to not use getCSSClass, but override
 newMessageDisplayComponent instead.

 You have a sample here:

 https://github.com/sebfz1/wicket-jquery-ui/blob/master/wicket-jquery-ui/src/main/java/com/googlecode/wicket/jquery/ui/panel/JQueryFeedbackPanel.java

 https://github.com/sebfz1/wicket-jquery-ui/blob/master/wicket-jquery-ui/src/main/java/com/googlecode/wicket/jquery/ui/panel/JQueryFeedbackPanel.html

 Hope this help,
 Sebastien.


 On Wed, Jul 17, 2013 at 10:54 PM, Daniel Watrous dwmaill...@gmail.com
 wrote:

  Hi,
 
  I'm working on a modification of the FeedbackPanel to work better with my
  theme. I would like to prevent the class for the actual message from
 being
  appended to. Right now MessageListView is a private final class and
  the populateItem adds an AttributeModifier to both the label and the
  listItem.
 
  I know I can override getCSSClass, but that still sets it for both the
  label and listItem.
 
  I can't extend just MessageListView since it's private and final. Even
 if I
  could subclass that, the FeedbackPanel constructor is called before my
  subclass of FeedbackPanel, so that it has already used the original
  MessageListView.
 
  Can you think of a clean way to eliminate the AttributeListener on
  listItem?
 
  Daniel
 

Re: FeedbackPanel customization

[Daniel Watrous]

This is what I ended up doing. Hopefully, as Cedric points out, it will be
more flexible in Wicket 7 and I can come back and clean it up.

Thanks.


On Wed, Jul 17, 2013 at 3:23 PM, Paul Bors p...@bors.ws wrote:

 Of course you can always override them in CSS as well.

 /* FEEDBACK MESSAGES */

 .feedbackMessages {
 padding-left: 0;
 padding-top: 0;
 text-align: left;
 margin-left: 0;
 margin-top: 0;
 padding-bottom: 1em;
 }

 .feedbackMessages div {
 padding: 0.5em;
 font-size: xx-small;
 border: none;
 }

 .feedbackMessages div.feedbackPanelERROR {
 background-color: lightsalmon;
 border: 1px solid darkred;
 }

 .feedbackMessages div.feedbackPanelWARNING {
 background-color: #FFB90F;
 border: 1px solid darkgoldenrod;
 }

 .feedbackMessages div.feedbackPanelINFO {
 background-color: lightgreen;
 border: 1px solid darkgreen;
 }

 ~ Thank you,
   Paul Bors

 -Original Message-
 From: Sebastien [mailto:seb...@gmail.com]
 Sent: Wednesday, July 17, 2013 5:21 PM
 To: users@wicket.apache.org
 Subject: Re: FeedbackPanel customization

 Hi Daniel,

 In such a case, you have to not use getCSSClass, but override
 newMessageDisplayComponent instead.

 You have a sample here:

 https://github.com/sebfz1/wicket-jquery-ui/blob/master/wicket-jquery-ui/src/
 main/java/com/googlecode/wicket/jquery/ui/panel/JQueryFeedbackPanel.java

 https://github.com/sebfz1/wicket-jquery-ui/blob/master/wicket-jquery-ui/src/
 main/java/com/googlecode/wicket/jquery/ui/panel/JQueryFeedbackPanel.html

 Hope this help,
 Sebastien.


 On Wed, Jul 17, 2013 at 10:54 PM, Daniel Watrous
 dwmaill...@gmail.comwrote:

  Hi,
 
  I'm working on a modification of the FeedbackPanel to work better with
  my theme. I would like to prevent the class for the actual message
  from being appended to. Right now MessageListView is a private final
  class and the populateItem adds an AttributeModifier to both the label
  and the listItem.
 
  I know I can override getCSSClass, but that still sets it for both the
  label and listItem.
 
  I can't extend just MessageListView since it's private and final. Even
  if I could subclass that, the FeedbackPanel constructor is called
  before my subclass of FeedbackPanel, so that it has already used the
  original MessageListView.
 
  Can you think of a clean way to eliminate the AttributeListener on
  listItem?
 
  Daniel
 


 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org

Re: Form questions

[Daniel Watrous]

Thanks Paul and Sven. I got the form to work and available in the onSubmit
handler.

Now I'm interested in splitting the form out into it's one file. So I
created a class that has nothing more than the form, but I'm not sure how
to include this into a page.

In my class I do this:

public class CnavModify extends ConsoleBasePage {

public CnavModify(PageParameters parameters) {
super(parameters);

Form form = new CnavForm(cnavFormArea);
add(form);
}
}

My CnavModify obviously extends a base page. What do I put inside the
wicket:extend tag to have the form render?

Daniel


On Tue, Jul 16, 2013 at 12:00 AM, Sven Meier s...@meiers.net wrote:

 Hi,


  Some problems I can't figure out. The code to create the button complains
 that it requires a CnavUrl but gets back a String.

add(new Button(publish, model) {
@Override
public void onSubmit() {
CnavUrl cnavUrl = (CnavUrl) getModelObject();
System.out.println(publish);
}
});


 a Button always has a IModelString to fill the value attribute. Note
 that in #onSubmit() you're getting the model object of the button, not of
 your form.
 You can write:

 add(new Button(publish, model) {
@Override
public void onSubmit() {
CnavUrl cnavUrl = (CnavUrl) MyForm.this.getModelObject();
System.out.println(publish);
}
});


 Using generic types in your code should help you.

 Sven



 On 07/15/2013 11:41 PM, Daniel Watrous wrote:

 Hello,

 I'm interested in creating a single Form that will accommodate the
 following use cases
 1) display blank for creating new records
 2) pre-populate for editing existing records
 3) map submitted values on to an existing domain object
 4) accommodate two actions, Save Draft -or- Publish

 I'm following Wicket in Action and within my Form constructor I create my
 model, like this

  CnavUrl cnavUrl = new BasicCnavUrl();
  IModel model = new Model((Serializable) cnavUrl);
  setModel(model);

 I then use PropertyModel

  add(new TextField(url, new PropertyModel(cnavUrl, url)));

 For the two actions, I'm creating the Button objects like this

  add(new Button(publish, model) {
  @Override
  public void onSubmit() {
  CnavUrl cnavUrl = (CnavUrl) getModelObject();
  System.out.println(publish);
  }
  });

 Some problems I can't figure out. The code to create the button complains
 that it requires a CnavUrl but gets back a String.

 It seems that a new BasicCnavUrl is created once with the Form. What
 happens on subsequent calls? Can I always expect my model to have the data
 from the current form submission?

 Is there a best way to incorporate the idea of an edit, where the model is
 pre-populated from a data source and pre-fills the Form fields?

 Thanks,
 Daniel



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Form questions

[Daniel Watrous]

Hello,

I'm interested in creating a single Form that will accommodate the
following use cases
1) display blank for creating new records
2) pre-populate for editing existing records
3) map submitted values on to an existing domain object
4) accommodate two actions, Save Draft -or- Publish

I'm following Wicket in Action and within my Form constructor I create my
model, like this

CnavUrl cnavUrl = new BasicCnavUrl();
IModel model = new Model((Serializable) cnavUrl);
setModel(model);

I then use PropertyModel

add(new TextField(url, new PropertyModel(cnavUrl, url)));

For the two actions, I'm creating the Button objects like this

add(new Button(publish, model) {
@Override
public void onSubmit() {
CnavUrl cnavUrl = (CnavUrl) getModelObject();
System.out.println(publish);
}
});

Some problems I can't figure out. The code to create the button complains
that it requires a CnavUrl but gets back a String.

It seems that a new BasicCnavUrl is created once with the Form. What
happens on subsequent calls? Can I always expect my model to have the data
from the current form submission?

Is there a best way to incorporate the idea of an edit, where the model is
pre-populated from a data source and pre-fills the Form fields?

Thanks,
Daniel

Re: DI Through Constructors w/Wicket

[Daniel Watrous]

I worked out this process:
http://software.danielwatrous.com/wicket-guice-including-unittests/

It enables unittests and may help you toward your goal.

Daniel


On Tue, Jun 25, 2013 at 7:14 PM, William Speirs wspe...@apache.org wrote:

 I think I know the answer before I ask, but is there any way to do
 constructor injection with Wicket? Say I have a web page and an email
 service. I need the email service in the web page. Now everyone is
 going to say, Simply use field injection. That will work, but makes
 unit testing a real pain because now I have to setup injection for my
 unit test (or add additional methods to all of my pages so I can
 manually set these field, or additional constructors that set these
 fields). I should be able to unit test a class without needing
 injection, but instead passing mocks through the constructor.

 I feel like this is impossible in Wicket currently because the
 DefaultPageFactory is using reflection to create the page instances
 instead of the injector (Guice in my case). It would be easy enough to
 get the injector and call getInstance() to obtain a page instance. The
 problem is when you need to pass in parameters. There is no concept of
 parameters for a page other than what is passed via the constructor,
 so you cannot call something like setPageParameters because it doesn't
 exist. If using Guice, you could create an @Assisted injection, and
 have a factory.

 Has anyone tried creating this type of IPageFactory -- a
 GuicePageFactory? What kind of pitfalls would exist if I attempted
 such a thing? Am I being stupid and missing something? Thoughts?

 Thanks...

 Bill-

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Re: Customizing links in Paging

[Daniel Watrous]

Thanks Paul,

I worked it out and added my solution to a SO question about the same issue:
http://stackoverflow.com/questions/4996208/how-do-i-modify-the-markup-generated-by-a-wicket-link-in-a-pagingnavigator

It's the newest answer at the bottom.

Daniel


On Mon, Jun 24, 2013 at 3:26 PM, Paul Bors p...@bors.ws wrote:

 See PagingNavigationLink, PagingNavigationIncrementLink and their use by
 the
 NavigationToolbar as well as their counter parts.
 You would have to create your own NavigationToolbar, call super() methods
 and replace the PagingNavigationLink with your own.

 If you want to replace the headers then take a look at
 FallbackHeadersToolbar.

 That's how I customized them both.

 Here's some code for you to get you started :)

 public class MyAjaxPagingNavigationLink extends AjaxPagingNavigationLink {
 private static final long serialVersionUID = 1L;

 private boolean isForLastPageLink;
 private boolean hideLastPageLink;

 /**
  * Constructor.
  *
  * @param id
  *See Component
  * @param iPageable
  *The pageable component for this page link
  * @param pageNumber
  *The page number in the PageableListView that this link
 links to. Negative
  *pageNumbers are relative to the end of the list.
  * @see AjaxPagingNavigationLink
  */
 public MyAjaxPagingNavigationLink(String id, IPageable iPageable, int
 pageNumber) {
 this(id, iPageable, pageNumber, false);
 }

 /**
  * Constructor.
  *
  * @param id
  *See Component
  * @param iPageable
  *The pageable component for this page link
  * @param pageNumber
  *The page number in the PageableListView that this link
 links to. Negative
  *pageNumbers are relative to the end of the list.
  * @param hideLastPageLink
  *Boolean flag set to true if the last page link is to be
 hidden
  * @see AjaxPagingNavigationLink
  */
 public MyAjaxPagingNavigationLink(String id, IPageable iPageable, int
 pageNumber, boolean hideLastPageLink) {
 super(id, iPageable, pageNumber);
 this.hideLastPageLink = hideLastPageLink;
 isForLastPageLink = pageNumber == -1;
 }

 @Override
 public void onComponentTagBody(MarkupStream stream, ComponentTag
 openTag) {
 String src;
 if (isForLastPageLink  hideLastPageLink) {
 src = ;
 } else {
 src = getImageSource(isForLastPageLink, pageable);

 }
 replaceComponentTagBody(stream, openTag, src);
 }

 public static String getImageSource(boolean forLastPageLink, IPageable
 iPageable) {
 String buttonLabel = new ResourceModel(button.label).getObject();
 String src = null;
 if(forLastPageLink) {
 if((iPageable.getCurrentPage() == iPageable.getPageCount() - 1)
 || (iPageable.getPageCount() == 0)) {
 src =

 RequestCycle.get().getUrlRenderer().renderContextRelativeUrl(images/last_di
 sabled.gif);
 } else {
 src =
 RequestCycle.get().getUrlRenderer().renderContextRelativeUrl(images/
 last.gi
 f);
 }
 } else {
 if(iPageable.getCurrentPage() == 0) {
 src =

 RequestCycle.get().getUrlRenderer().renderContextRelativeUrl(images/first_d
 isabled.gif);
 } else {
 src =

 RequestCycle.get().getUrlRenderer().renderContextRelativeUrl(images/first.g
 if);
 }
 }
 return img src=\ + src  + \ border=\0\ alt=\ +
 buttonLabel
 + \;
 }
 }

 public class MyAjaxNavigationToolbar extends AjaxNavigationToolbar {
 private static final long serialVersionUID = 1L;

 protected boolean showNavigationLabel = true;

 public MyAjaxNavigationToolbar(DataTable?, ? table) {
 this(table, table.getColumns().size());
 }

 public MyAjaxNavigationToolbar(DataTable?, ? table, int
 customColspan)
 {
 super(table);
 WebMarkupContainer span = (WebMarkupContainer)this.get(span);
 span.add(new AttributeModifier(colspan, new
 ModelString(String.valueOf(customColspan;
 }

 @Override
 protected PagingNavigator newPagingNavigator(String navigatorId, final
 DataTable?, ? table) {
 return new AjaxPagingNavigator(navigatorId, table) {
 private static final long serialVersionUID = 1L;
 @Override
 protected Link? newPagingNavigationIncrementLink(String id,
 IPageable pageable, int increment) {
 return new MyAjaxPagingNavigationIncrementLink(id,
 pageable,
 increment);
 }

 @Override
 protected Link? newPagingNavigationLink(String id, IPageable
 pageable, int pageNumber) {
 return new MyAjaxPagingNavigationLink(id, pageable,
 pageNumber) {
 private static final long

Re: Point Form action to Page

[Daniel Watrous]

I had a hard time figuring out how to follow your second suggestion and
making it work for my use case. Instead I ended up calling
parameters.clearNamed();

After I got the search term. That kept it out of my URL.

I also added a clear search link that unset the search filter parameter
in my DataProvider.

Thanks for your help.

Daniel


On Sat, Jun 22, 2013 at 10:45 AM, Paul Bors p...@bors.ws wrote:

 Try the second approach. There would be no query parameters to worry about.

 You can construct your page by taking as a constructor parameter a POJO
 that's the model object for the filter form. You can also have a default
 constructor that would construct the page with no filters.

 ~ Thank you,
Paul C Bors

 On Jun 21, 2013, at 18:11, Daniel Watrous dwmaill...@gmail.com wrote:

  That first approach worked, but it brings me back to another issue: I end
  up with a query string parameter
  searchFilter=quick
 
  This is the same problem I was running in to here:
 
 http://apache-wicket.1842946.n4.nabble.com/form-GET-and-POST-getting-mixed-up-td4659427.html
 
  When I try to load the page again, it keeps replacing that query string
 and
  so I can't get back to a broad result.
 
  Is there some way to clear the search (by clearing the query string
  parameter)?
 
  Daniel
 
  On Fri, Jun 21, 2013 at 3:51 PM, Paul Bors p...@bors.ws wrote:
 
  class SearchPanel ... {
   ...
   add(id, new SomeButtonSubmitLinkOrForm {
 @Override
   public void onSubmit() {
  // your biz logic
  PageParameter pageParameter = new PageParameters();
  pageParameters.add(searchFilter, mySearchFilter);
  setResponsePage(SearchResultsPage.class, pageParameter);
   }
   });
   ...
  }
 
 
 http://ci.apache.org/projects/wicket/apidocs/6.x/org/apache/wicket/request/m
  apper/parameter/PageParameters.html#PageParameters%28%29
 
  On a second though it might be even simpler not to use PageParameters
  (since
  you might have too many filter form fields) but to add another
 constructor
  to your SearchResultsPage that takes an instance to your SearchFilter
 POJO
  and filters itself accordingly. I normally reuse my DAO mapped POJOs.
 
  class SearchPanel ... {
   ...
   add(id, new SomeButtonSubmitLinkOrForm {
 @Override
   public void onSubmit() {
  // your biz logic creates an instance of mySearchFilter that
  encapsulates your search parameters
  setResponsePage(new SearchResultsPage(mySearchFilter)); //
 create
  this constructor and filter the page by it
   }
   });
   ...
  }
 
  ~ Thank you,
   Paul Bors
 
  -Original Message-
  From: Daniel Watrous [mailto:dwmaill...@gmail.com]
  Sent: Friday, June 21, 2013 5:40 PM
  To: users@wicket.apache.org
  Subject: Re: Point Form action to Page
 
  Within my SearchPanel onSubmit, how do I get the PageParameters to make
  that
  call to setResponsePage? I hope I'm understanding you right.
 
 
  On Fri, Jun 21, 2013 at 3:30 PM, Paul Bors p...@bors.ws wrote:
 
  There is a good reason why Wicket is not letting you override a form's
  action attribute. Is at the core of its processing.
 
  If I understand you right you have a panel that processes a search
  form and you would like to respond with SearchResultsPage.
 
  Wicket's way of doing that would be to use PageParameters. Add a
  constructor to your SearchResultsPage that takes in an instance of
  PageParameters and then pass your search parameters through it via
  setResponsePage(new SearchResultsPage(mySearchPageParameters).
 
  If I didn't understand you right, then try to better explain your
  use-case
  :)
 
  You might also be interested in the
  o.a.wicket.extensions.markup.html.repeater.data.table.filter package
  :)
 
  ~ Thank you,
   Paul Bors
 
  -Original Message-
  From: Daniel Watrous [mailto:dwmaill...@gmail.com]
  Sent: Friday, June 21, 2013 5:13 PM
  To: users@wicket.apache.org
  Subject: Point Form action to Page
 
  Hi,
 
  I have created a Panel that contains a search form. I can't figure out
  how to get the action of the Form to submit to the search results
  page. Any ideas?
 
  In other words, I was hoping to do something like this:
 
  form.add(new SimpleAttributeModifier(action,
  SearchResultsPage.class));
 
  Thanks,
  Daniel
 
 
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  For additional commands, e-mail: users-h...@wicket.apache.org
 
 
  -
  To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
  For additional commands, e-mail: users-h...@wicket.apache.org
 
 

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 For additional commands, e-mail: users-h...@wicket.apache.org

Customizing links in Paging

[Daniel Watrous]

Hello,

I'm using the Paging functionality with my DataProvider. I've been trying
to make a simple change, but it's turned out to be very difficult.
Hopefully you can give a little help.

I have a class that extends PagingNavigator and provides markup specific to
my theme. When the paging links render, the current page doesn't render
with an a tag around it. It's stripped away.

I've traced through and found that this is most likely due to AutoEnable
being set to true in the Link that's created. That choice is hard coded in
to the PagingNavigationLink class.

I'm trying to avoid extending all of the Paging related classes down to the
PagingNavigationLink in order to customize this behavior. Is there some way
to have that active page render inside an a tag with no href?

Thanks,
Daniel

Point Form action to Page

[Daniel Watrous]

Hi,

I have created a Panel that contains a search form. I can't figure out how
to get the action of the Form to submit to the search results page. Any
ideas?

In other words, I was hoping to do something like this:

form.add(new SimpleAttributeModifier(action, SearchResultsPage.class));

Thanks,
Daniel

Re: Point Form action to Page

[Daniel Watrous]

Within my SearchPanel onSubmit, how do I get the PageParameters to make
that call to setResponsePage? I hope I'm understanding you right.


On Fri, Jun 21, 2013 at 3:30 PM, Paul Bors p...@bors.ws wrote:

 There is a good reason why Wicket is not letting you override a form's
 action attribute. Is at the core of its processing.

 If I understand you right you have a panel that processes a search form and
 you would like to respond with SearchResultsPage.

 Wicket's way of doing that would be to use PageParameters. Add a
 constructor
 to your SearchResultsPage that takes in an instance of PageParameters and
 then pass your search parameters through it via setResponsePage(new
 SearchResultsPage(mySearchPageParameters).

 If I didn't understand you right, then try to better explain your use-case
 :)

 You might also be interested in the
 o.a.wicket.extensions.markup.html.repeater.data.table.filter package :)

 ~ Thank you,
   Paul Bors

 -Original Message-
 From: Daniel Watrous [mailto:dwmaill...@gmail.com]
 Sent: Friday, June 21, 2013 5:13 PM
 To: users@wicket.apache.org
 Subject: Point Form action to Page

 Hi,

 I have created a Panel that contains a search form. I can't figure out how
 to get the action of the Form to submit to the search results page. Any
 ideas?

 In other words, I was hoping to do something like this:

 form.add(new SimpleAttributeModifier(action, SearchResultsPage.class));

 Thanks,
 Daniel


 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org

Re: Point Form action to Page

[Daniel Watrous]

That first approach worked, but it brings me back to another issue: I end
up with a query string parameter
searchFilter=quick

This is the same problem I was running in to here:
http://apache-wicket.1842946.n4.nabble.com/form-GET-and-POST-getting-mixed-up-td4659427.html

When I try to load the page again, it keeps replacing that query string and
so I can't get back to a broad result.

Is there some way to clear the search (by clearing the query string
parameter)?

Daniel

On Fri, Jun 21, 2013 at 3:51 PM, Paul Bors p...@bors.ws wrote:

 class SearchPanel ... {
   ...
   add(id, new SomeButtonSubmitLinkOrForm {
 @Override
   public void onSubmit() {
  // your biz logic
  PageParameter pageParameter = new PageParameters();
  pageParameters.add(searchFilter, mySearchFilter);
  setResponsePage(SearchResultsPage.class, pageParameter);
   }
   });
   ...
 }

 http://ci.apache.org/projects/wicket/apidocs/6.x/org/apache/wicket/request/m
 apper/parameter/PageParameters.html#PageParameters%28%29

 On a second though it might be even simpler not to use PageParameters
 (since
 you might have too many filter form fields) but to add another constructor
 to your SearchResultsPage that takes an instance to your SearchFilter POJO
 and filters itself accordingly. I normally reuse my DAO mapped POJOs.

 class SearchPanel ... {
   ...
   add(id, new SomeButtonSubmitLinkOrForm {
 @Override
   public void onSubmit() {
  // your biz logic creates an instance of mySearchFilter that
 encapsulates your search parameters
  setResponsePage(new SearchResultsPage(mySearchFilter)); // create
 this constructor and filter the page by it
   }
   });
   ...
 }

 ~ Thank you,
   Paul Bors

 -Original Message-
 From: Daniel Watrous [mailto:dwmaill...@gmail.com]
 Sent: Friday, June 21, 2013 5:40 PM
 To: users@wicket.apache.org
 Subject: Re: Point Form action to Page

 Within my SearchPanel onSubmit, how do I get the PageParameters to make
 that
 call to setResponsePage? I hope I'm understanding you right.


 On Fri, Jun 21, 2013 at 3:30 PM, Paul Bors p...@bors.ws wrote:

  There is a good reason why Wicket is not letting you override a form's
  action attribute. Is at the core of its processing.
 
  If I understand you right you have a panel that processes a search
  form and you would like to respond with SearchResultsPage.
 
  Wicket's way of doing that would be to use PageParameters. Add a
  constructor to your SearchResultsPage that takes in an instance of
  PageParameters and then pass your search parameters through it via
  setResponsePage(new SearchResultsPage(mySearchPageParameters).
 
  If I didn't understand you right, then try to better explain your
  use-case
  :)
 
  You might also be interested in the
  o.a.wicket.extensions.markup.html.repeater.data.table.filter package
  :)
 
  ~ Thank you,
Paul Bors
 
  -Original Message-
  From: Daniel Watrous [mailto:dwmaill...@gmail.com]
  Sent: Friday, June 21, 2013 5:13 PM
  To: users@wicket.apache.org
  Subject: Point Form action to Page
 
  Hi,
 
  I have created a Panel that contains a search form. I can't figure out
  how to get the action of the Form to submit to the search results
  page. Any ideas?
 
  In other words, I was hoping to do something like this:
 
  form.add(new SimpleAttributeModifier(action,
  SearchResultsPage.class));
 
  Thanks,
  Daniel
 
 
  -
  To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
  For additional commands, e-mail: users-h...@wicket.apache.org
 
 


 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
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form GET and POST getting mixed up

[Daniel Watrous]

Hello,

I created a single page that shows some data using DataView. I then added a
form and allow a filter argument to be passed in. The problem I'm getting
is that the first time a search is done, the search value is added to the
URL for the page. Subsequent searches are ignored due to the query string.

I have looked for some way to change it to GET, but couldn't find that. I
also looked for some way to prevent the URL from being modified, but I'm
not clear on why that is happening either.

Any idea how to fix this?

Here's my Page code

public CnavDisplay(PageParameters parameters) {
super(parameters);

final TextFieldString search = new TextFieldString(search,
Model.of());
Form? form = new FormVoid(searchForm) {

@Override
protected void onSubmit() {

final String searchValue = search.getModelObject();

PageParameters pageParameters = new PageParameters();
pageParameters.add(search, searchValue);
setResponsePage(CnavDisplay.class, pageParameters);

}

};

add(form);
form.add(search);

CnavUrlDataProvider dataProvider = new CnavUrlDataProvider();
if (!parameters.get(search).isEmpty()) {
dataProvider.setSearch(parameters.get(search).toString());
}

DataViewCnavUrl dataView = new DataViewCnavUrl(repeating,
dataProvider) {
private static final long serialVersionUID = 1L;

@Override
protected void populateItem(final ItemCnavUrl item)
{
CnavUrl cnavUrl = item.getModelObject();
//item.add(new Label(cnavid,
String.valueOf(((MorphiaCnavUrl)cnavUrl).getId(;
item.add(new Label(url, cnavUrl.getURL()));
item.add(new Label(type, cnavUrl.getType()));

item.add(AttributeModifier.replace(class, new
AbstractReadOnlyModelString()
{
private static final long serialVersionUID = 1L;

@Override
public String getObject()
{
return (item.getIndex() % 2 == 1) ? even : odd;
}
}));
}
};

Here's my application where I mount the page

mountPage(/cnavlink, CnavDisplay.class);

Any ideas?

Thanks,
Daniel

Re: form GET and POST getting mixed up

[Daniel Watrous]

I found a solution that worked.

I didn't realize that by adding the value passed in to a PageParameters
object and then setting the response page I was telling Wicket to add that
to the URL. I got rid of that.

I changed my form to this use the CompoundPropertyModel:
Form? form = new FormCnavDisplay(searchForm, new
CompoundPropertyModelCnavDisplay(this));

I also added a class attribute for search and moved my onsubmit into a
Button declaration.

final CnavUrlDataProvider dataProvider = new CnavUrlDataProvider();

final TextFieldString searchField = new
TextFieldString(search, new PropertyModel(this,search));
Form? form = new FormCnavDisplay(searchForm, new
CompoundPropertyModelCnavDisplay(this));
Button submitButton = new Button(searchButton) {  // (4)
@Override
public void onSubmit() {
if (search != null  !search.isEmpty()) {
dataProvider.setSearch(search);
}
}
};

add(form);
form.add(searchField);
form.add(submitButton);

Thanks,
Daniel



On Wed, Jun 12, 2013 at 9:39 AM, Daniel Watrous dwmaill...@gmail.comwrote:

 Hello,

 I created a single page that shows some data using DataView. I then added
 a form and allow a filter argument to be passed in. The problem I'm getting
 is that the first time a search is done, the search value is added to the
 URL for the page. Subsequent searches are ignored due to the query string.

 I have looked for some way to change it to GET, but couldn't find that. I
 also looked for some way to prevent the URL from being modified, but I'm
 not clear on why that is happening either.

 Any idea how to fix this?

 Here's my Page code

 public CnavDisplay(PageParameters parameters) {
 super(parameters);

 final TextFieldString search = new TextFieldString(search,
 Model.of());
 Form? form = new FormVoid(searchForm) {

 @Override
 protected void onSubmit() {

 final String searchValue = search.getModelObject();

 PageParameters pageParameters = new PageParameters();
 pageParameters.add(search, searchValue);
  setResponsePage(CnavDisplay.class, pageParameters);

 }

 };

 add(form);
 form.add(search);

 CnavUrlDataProvider dataProvider = new CnavUrlDataProvider();
 if (!parameters.get(search).isEmpty()) {
 dataProvider.setSearch(parameters.get(search).toString());
 }

 DataViewCnavUrl dataView = new DataViewCnavUrl(repeating,
 dataProvider) {
 private static final long serialVersionUID = 1L;

 @Override
 protected void populateItem(final ItemCnavUrl item)
 {
 CnavUrl cnavUrl = item.getModelObject();
 //item.add(new Label(cnavid,
 String.valueOf(((MorphiaCnavUrl)cnavUrl).getId(;
 item.add(new Label(url, cnavUrl.getURL()));
 item.add(new Label(type, cnavUrl.getType()));

 item.add(AttributeModifier.replace(class, new
 AbstractReadOnlyModelString()
 {
 private static final long serialVersionUID = 1L;

 @Override
 public String getObject()
 {
 return (item.getIndex() % 2 == 1) ? even : odd;
 }
 }));
 }
 };

 Here's my application where I mount the page

 mountPage(/cnavlink, CnavDisplay.class);

 Any ideas?

 Thanks,
 Daniel

Paging and excessive database access (repeaters)

[Daniel Watrous]

Hi,

I'm following the example in the repeaters section for paging through large
amounts of data:
http://www.wicket-library.com/wicket-examples-6.0.x/repeater/wicket/bookmarkable/org.apache.wicket.examples.repeater.PagingPage

Based on the example and how I've had to implement this there is a lot of
data access. First is in the ContactDataProvider. The function iterator
queries for the set of data that will be displayed.

Next, all the objects that are returned need to be wrapped in
a DetachableContactModel. The load mechanism here then loads each
individual object from the datastore.

In the example, the data is in memory. In a real world scenario the data is
likely to be remote and this setup could have a significant performance
impact.

Is there some way to cut out some of the data access? For example, can I
get rid of DetachableContactModel and just use the data retrieved through
the ContactDataProvider?

Thanks,
Daniel

Do all POJOs have to implement Serializable?

[Daniel Watrous]

Hi,

I have an existing application tier that I package as a jar and place in a
maven repository. I've been working to expose some of this application
through Wicket. It's easy to include it in the pom, but I keep getting:

ERROR - JavaSerializer - Error serializing object MyObject  ...
 The object type is not Serializable!

Do all of my classes have to implement serializable in order to use them in
Wicket?

Daniel

Re: Paging and excessive database access (repeaters)

[Daniel Watrous]

So what I'm hearing is that I have to use the Detachable model, but that I
can build in some caching to prevent unnecessary datastore access.

Thanks.


On Tue, Jun 11, 2013 at 1:11 PM, Marios Skounakis msc...@gmail.com wrote:

 This example is not quite optimized. The DetachableContactModel's
 constructor is

 public DetachableContactModel(Contact c)
 {
 this(c.getId());
 }

 but it should be:


 public DetachableContactModel(Contact c)
 {
 this(c.getId());
 setObject(c);
 }

 The way it's done in the example although the model is given the contact,
 it stores only its id and needs to load it from the database in order to
 access it, even while rendering the table. The way I suggest the model is
 given the contact and does not need to load it.

 So, the way it's done in the example database access is as follows:
 - a list query to get the contacts for a given page
 - n queries by id, one for each row

 The way I'm suggesting database access is as follows:
 - a list query to get the contacts for a give page
 - no other queties

 If the row contains say a link column that accesses the row model in the
 ajax click, then you will see an additional database access by id when the
 DetachableContactModel is attached.

 Cheers
 Marios


 On Tue, Jun 11, 2013 at 6:56 PM, Daniel Watrous dwmaill...@gmail.com
 wrote:

  Hi,
 
  I'm following the example in the repeaters section for paging through
 large
  amounts of data:
 
 
 http://www.wicket-library.com/wicket-examples-6.0.x/repeater/wicket/bookmarkable/org.apache.wicket.examples.repeater.PagingPage
 
  Based on the example and how I've had to implement this there is a lot of
  data access. First is in the ContactDataProvider. The function iterator
  queries for the set of data that will be displayed.
 
  Next, all the objects that are returned need to be wrapped in
  a DetachableContactModel. The load mechanism here then loads each
  individual object from the datastore.
 
  In the example, the data is in memory. In a real world scenario the data
 is
  likely to be remote and this setup could have a significant performance
  impact.
 
  Is there some way to cut out some of the data access? For example, can I
  get rid of DetachableContactModel and just use the data retrieved through
  the ContactDataProvider?
 
  Thanks,
  Daniel
 

wicket-guice HttpServletRequest

[Watrous, Daniel]

I'm having some trouble getting my unittests to work when I use Guice to get an 
instance of the HttpServletRequest object. The page works fine when running in 
jetty, but in the unittests I get these errors.

org.apache.wicket.WicketRuntimeException: Can't instantiate page using 
constructor 'public 
com.hp.honeybadger.console.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
 and argument ''. Might be it doesn't exist, may be it is not visible (public).

1) Error in custom provider, com.google.inject.OutOfScopeException: Cannot 
access scoped object. Either we are not currently inside an HTTP Servlet 
request, or you may have forgotten to apply 
com.google.inject.servlet.GuiceFilter as a servlet filter for this request.
  at 
com.google.inject.servlet.InternalServletModule.provideHttpServletRequest(InternalServletModule.java:95)
  while locating javax.servlet.http.HttpServletRequest

Caused by: com.google.inject.OutOfScopeException: Cannot access scoped object. 
Either we are not currently inside an HTTP Servlet request, or you may have 
forgotten to apply com.google.inject.servlet.GuiceFilter as a servlet filter 
for this request.

This is my page

public class HomePage extends WebPage {

private static final long serialVersionUID = 1L;
@Inject private HttpServletRequest request;

public HomePage(final PageParameters parameters) {
super(parameters);

add(new Label(version, 
getApplication().getFrameworkSettings().getVersion()));

// TODO Add your page's components here
add(new Label(method, request.getMethod()));

}
}

QUESTION

How can I get around this issue or make use of a mock object to enable 
unittests?

Ajax indicator - display delay

[Daniel Stoch]

Hi all,

When there is some AJAX activity on page we can show ajax indicator
(using AjaxIndicatorAppender and implementing IAjaxIndicatorAware).
My problem is that I want to show such indicator only when ajax
request takes longer than specified amount of time (eg.  1 second).
But inside a AbstractDefaultAjaxBehavior (1.4.x) such indicator is
shown immediately when request is processed. Is there any solution to
delay displaying indicator (something like AjaxCallThrottlingDecorator
but not for ajax beahvior but for ajax indicator itself)?

--
Best regards,
Daniel

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Re: [Announce] Introducing Wicked Charts

[Daniel Neugebauer]

Hi!

As nice as it looks but unfortunately, I feel like it should be pointed
out that only your wrapper is Apache 2 licensed. Highcharts itself is
only free to use for non-profit/non-commercial applications and requires
purchase of a license otherwise, see:
http://shop.highsoft.com/highcharts.html

As long as a project meets the requirements for a free license or one
can afford buying a commercial license, that's fine. Unfortunately, it
opens a trap for developers that are less cautious and rely on licenses
of libraries without checking full dependencies before adding them to
their projects.

Highcharts may be well-known but I haven't heard of it before. There
will be others who see your library but don't know they may require a
license for Highcharts, so they may fall for the license.

It always disappoints me a bit if I see something published under a
really (even commercially) free license but then realize that its
dependencies are unfree.

Don't get me wrong, your project looks really nice and useful but the
license issue should be handled more carefully. A short but prominent
notice on your project homepage would be enough.

Sorry for spoiling the party. :)

Regards,
Daniel

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WicketURLEncoder: escaping / in parameter value

[Daniel Stoch]

Hi,

I'm using WicketURLEncoder (1.4.18) to encode some parameter values.
Exactly WicketURLEncoder.QUERY_INSTANCE, but the problem if parameter
value contains / (slash) character, eg.: 1 Mbit/s, which is not
escaped. This cause an error in url coding startegy which is based on
key/value pairs (/key1/value1/key2/value2) because value contains /
and brokes the whole url.

Here it is an output from different version of WicketURLEncoder for this value:
WicketURLEncoder.PATH_INSTANCE = 1%20Mbit%2Fs
WicketURLEncoder.FULL_PATH_INSTANCE = 1%20Mbit/s
WicketURLEncoder.QUERY_INSTANCE = 1+Mbit/s

So should I use PATH_INSTANCE to encode these parameter values instead
of QUERY_INSTANCE?

I do not use Wicket 6, but maybe the same problem is in that version?

--
Best regards,
Daniel

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Re: WicketURLEncoder: escaping / in parameter value

[Daniel Stoch]

Thanks for the very fast answer.
I wanted to change it on PATH_INSTANCE but I wanted to make sure, so I
have asked ;)

--
DS

On Mon, Nov 26, 2012 at 2:32 PM, Martin Grigorov mgrigo...@apache.org wrote:
 Hi,

 Since you use parameters in the path you have to use PATH_INSTANCE.


 On Mon, Nov 26, 2012 at 2:28 PM, Daniel Stoch daniel.st...@gmail.comwrote:

 Hi,

 I'm using WicketURLEncoder (1.4.18) to encode some parameter values.
 Exactly WicketURLEncoder.QUERY_INSTANCE, but the problem if parameter
 value contains / (slash) character, eg.: 1 Mbit/s, which is not
 escaped. This cause an error in url coding startegy which is based on
 key/value pairs (/key1/value1/key2/value2) because value contains /
 and brokes the whole url.

 Here it is an output from different version of WicketURLEncoder for this
 value:
 WicketURLEncoder.PATH_INSTANCE = 1%20Mbit%2Fs
 WicketURLEncoder.FULL_PATH_INSTANCE = 1%20Mbit/s
 WicketURLEncoder.QUERY_INSTANCE = 1+Mbit/s

 So should I use PATH_INSTANCE to encode these parameter values instead
 of QUERY_INSTANCE?

 I do not use Wicket 6, but maybe the same problem is in that version?

 --
 Best regards,
 Daniel

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 --
 Martin Grigorov
 jWeekend
 Training, Consulting, Development
 http://jWeekend.com http://jweekend.com/

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wicket 1.4.7 - encoding strategy - ajax button

[Daniel Fernandez]

Hi,




I'm using wicket 1.4.7 and I'm facing some problem trying to solve some problem 
about URLs:










1) I'm using the classes:
mount(new HybridUrlCodingStrategy(WebPageNaming.ADMIN_PAGE, AdminPage.class, 
false));



mount(new MixedParamHybridUrlCodingStrategy(WebPageNaming.EN + SLASH + 
WebPageNaming.CORPORATIVE_SECTION_EN, SectionPageEN.class, false, new 
String[]{ParameterNaming.URL_SECTION}));

ir order to mount the URLs, but it looks like: 
http://localhost:8080/balune/en/corporativesection/home.16.1 when I hit an AJAX 
button like this:

private class LoginForm extends FormLoginUserView {

private static final long serialVersionUID = 1673801238179569937L;

public LoginForm(String id) {

super(id);

}


@Override

public void onSubmit() {

if (BaluneSession.get().signIn(loginUserView.getEmail(), 
loginUserView.getPassword())) {

if (!continueToOriginalDestination()) {

BaluneApplication.get().getPrepareUtils().prepareReloadByPageAndParams(getRequestCycle(),
 pageParameters);

}

}

else {

this.error(getString(loginError));

}

}


}




previously I was using mountBookmarkablePage and 
MixedParamUrlCodingStrategy but URLs looked uglier.

Is there any solution in this wicket version (I wouldn't like to change the 
version because it's and old app and it would be so much work to resolve the 
incompatibilites) to make the URLs look prettier? I'd like them to not change 
when I hit an AJAX button...








2) in production, the parameter jsessionid is appended to the URL. is there any 
way to avoid that in wicket? or is because Tomcat?



Thanks in advance.



Daniel Fernandez

Re: Wicket + Guice + unittests

[Daniel Watrous]

Martin,

In this case it would be just as easy to inject a specific bean.

I did it this way because it matched some other examples that I saw.

Daniel
On Oct 16, 2012 1:08 AM, Martin Grigorov mgrigo...@apache.org wrote:

 Hi Daniel,

 public class HomePage extends WebPage {
 private static final long serialVersionUID = 1L;
 @Inject private Injector injector;

 public HomePage(final PageParameters parameters) {
 super(parameters);

 add(new Label(version,
 getApplication().getFrameworkSettings().getVersion()));

 // TODO Add your page's components here
 QuickLink quickLink = injector.getInstance(QuickLink.class);
 add(new Label(quickLink , quickLink.buildQuickLink()));
 }
 }

 Why do you inject the Injector and then ask it for beans instead of
 injecting the bean directly and use it ?

 On Mon, Oct 15, 2012 at 6:51 PM, Daniel Watrous
 daniel.watr...@gmail.com wrote:
  Dan,
 
  Thanks for all your help. I finally worked through all the details and
  have it working. Here's my write up:
 
  http://software.danielwatrous.com/wicket-guice-including-unittests/
 
  The last bit I needed clarification on was how to pass parameters to
  the WicketFilter. I think the integration between Wicket and Guice is
  clean and flexible.
 
  Thanks again,
  Daniel
 
  On Fri, Oct 12, 2012 at 12:35 PM, Daniel Watrous
  daniel.watr...@gmail.com wrote:
  yes, that's what I have in my web.xml
 
  On Fri, Oct 12, 2012 at 12:10 PM, Dan Retzlaff dretzl...@gmail.com
 wrote:
  Yes, CustomFilter = CustomWicketFilter... Those aren't our actual
 names.
  And yes, we provide filter parameters too. I just omitted them since
 they
  weren't relevant to the Guice-based application instantiation I was
  describing.
 
  Do you have this in your web.xml?
  filter
  filter-nameguiceFilter/filter-name
  filter-classcom.google.inject.servlet.GuiceFilter/filter-class
  /filter
  filter-mapping
  filter-nameguiceFilter/filter-name
  url-pattern/*/url-pattern
  /filter-mapping
 
  On Fri, Oct 12, 2012 at 6:01 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:
 
  Dan,
 
  Thanks. I've got unittests running now, but the WicketFilter doesn't
  seem to be processing. All I get when I run the applicaiton shows a
  jetty produced directory listing.
 
  In the snippet you provided before I think that CustomFilter and
  CustomeWicketFilter should be the same thing. Is that right?
 
  In my previous approach, when I bound the WicketFilter I included some
  parameters, like this:
  filter(/*).through(WicketFilter.class,
  createWicketFilterInitParams());
 
  With this function
 
  private MapString, String createWicketFilterInitParams() {
  MapString, String wicketFilterParams = new HashMapString,
  String();
  wicketFilterParams.put(WicketFilter.FILTER_MAPPING_PARAM,
 /*);
  wicketFilterParams.put(applicationClassName,
  com.hp.honeybadger.web.WicketApplication);
  return wicketFilterParams;
  }
 
  I'm now trying to figure out how to make sure that the wicket filter
  is called...
 
  Daniel
 
  On Fri, Oct 12, 2012 at 11:03 AM, Dan Retzlaff dretzl...@gmail.com
  wrote:
   I follow you. WicketTester doesn't know about GuiceFilter, so you'll
  need a
   different way of getting your Injector into your Wicket Application.
  Rather
   than getting the Injector from your servlet context attributes, I'm
   suggesting that you let Guice instantiate your Application so you
 can
   @Inject the injector like any other dependency. The binding code I
 posted
   previously does the (non-test) setup; for the test itself it's as
 simple
  as
   https://gist.github.com/3880246.
  
   Hope that helps. By the way, I enjoyed your Wicket+EC2 article.
 Thanks
  for
   that. :)
  
   On Fri, Oct 12, 2012 at 4:08 PM, Daniel Watrous 
  daniel.watr...@gmail.comwrote:
  
   Dan,
  
   I'm not talking about my application. I'm talking about unittests.
   I've followed the Guice recommended way to integrate with servlets
   using the GuiceFilter.
  
   Now I'm trying to make the Wicket unittests work and I need the
   injector to be available in WicketTester.
  
   Daniel
  
   On Thu, Oct 11, 2012 at 6:10 PM, Dan Retzlaff dretzl...@gmail.com
 
  wrote:
For what it's worth, we instantiate our applications through
 Guice.
   Having
your application go get its Injector kind of violates the DI
  concept.
   
filter(/*).through(WicketFilter.class);
bind(WebApplication.class).to(CustomWebApplication.class);
bind(WicketFilter.class).to(CustomWicketFilter.class);
   
@Singleton
private static class CustomFilter extends WicketFilter {
@Inject private ProviderWebApplication webApplicationProvider;
 @Override
protected IWebApplicationFactory getApplicationFactory() {
return new IWebApplicationFactory() {
@Override
public WebApplication createApplication(WicketFilter filter) {
return webApplicationProvider.get();
}
@Override

Re: Wicket + Guice + unittests

[Daniel Watrous]

Dan,

Thanks for all your help. I finally worked through all the details and
have it working. Here's my write up:

http://software.danielwatrous.com/wicket-guice-including-unittests/

The last bit I needed clarification on was how to pass parameters to
the WicketFilter. I think the integration between Wicket and Guice is
clean and flexible.

Thanks again,
Daniel

On Fri, Oct 12, 2012 at 12:35 PM, Daniel Watrous
daniel.watr...@gmail.com wrote:
 yes, that's what I have in my web.xml

 On Fri, Oct 12, 2012 at 12:10 PM, Dan Retzlaff dretzl...@gmail.com wrote:
 Yes, CustomFilter = CustomWicketFilter... Those aren't our actual names.
 And yes, we provide filter parameters too. I just omitted them since they
 weren't relevant to the Guice-based application instantiation I was
 describing.

 Do you have this in your web.xml?
 filter
 filter-nameguiceFilter/filter-name
 filter-classcom.google.inject.servlet.GuiceFilter/filter-class
 /filter
 filter-mapping
 filter-nameguiceFilter/filter-name
 url-pattern/*/url-pattern
 /filter-mapping

 On Fri, Oct 12, 2012 at 6:01 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:

 Dan,

 Thanks. I've got unittests running now, but the WicketFilter doesn't
 seem to be processing. All I get when I run the applicaiton shows a
 jetty produced directory listing.

 In the snippet you provided before I think that CustomFilter and
 CustomeWicketFilter should be the same thing. Is that right?

 In my previous approach, when I bound the WicketFilter I included some
 parameters, like this:
 filter(/*).through(WicketFilter.class,
 createWicketFilterInitParams());

 With this function

 private MapString, String createWicketFilterInitParams() {
 MapString, String wicketFilterParams = new HashMapString,
 String();
 wicketFilterParams.put(WicketFilter.FILTER_MAPPING_PARAM, /*);
 wicketFilterParams.put(applicationClassName,
 com.hp.honeybadger.web.WicketApplication);
 return wicketFilterParams;
 }

 I'm now trying to figure out how to make sure that the wicket filter
 is called...

 Daniel

 On Fri, Oct 12, 2012 at 11:03 AM, Dan Retzlaff dretzl...@gmail.com
 wrote:
  I follow you. WicketTester doesn't know about GuiceFilter, so you'll
 need a
  different way of getting your Injector into your Wicket Application.
 Rather
  than getting the Injector from your servlet context attributes, I'm
  suggesting that you let Guice instantiate your Application so you can
  @Inject the injector like any other dependency. The binding code I posted
  previously does the (non-test) setup; for the test itself it's as simple
 as
  https://gist.github.com/3880246.
 
  Hope that helps. By the way, I enjoyed your Wicket+EC2 article. Thanks
 for
  that. :)
 
  On Fri, Oct 12, 2012 at 4:08 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:
 
  Dan,
 
  I'm not talking about my application. I'm talking about unittests.
  I've followed the Guice recommended way to integrate with servlets
  using the GuiceFilter.
 
  Now I'm trying to make the Wicket unittests work and I need the
  injector to be available in WicketTester.
 
  Daniel
 
  On Thu, Oct 11, 2012 at 6:10 PM, Dan Retzlaff dretzl...@gmail.com
 wrote:
   For what it's worth, we instantiate our applications through Guice.
  Having
   your application go get its Injector kind of violates the DI
 concept.
  
   filter(/*).through(WicketFilter.class);
   bind(WebApplication.class).to(CustomWebApplication.class);
   bind(WicketFilter.class).to(CustomWicketFilter.class);
  
   @Singleton
   private static class CustomFilter extends WicketFilter {
   @Inject private ProviderWebApplication webApplicationProvider;
@Override
   protected IWebApplicationFactory getApplicationFactory() {
   return new IWebApplicationFactory() {
   @Override
   public WebApplication createApplication(WicketFilter filter) {
   return webApplicationProvider.get();
   }
   @Override
   public void destroy(WicketFilter filter) {
   }
   };
   }
   }
  
   On Thu, Oct 11, 2012 at 11:49 PM, Daniel Watrous
   daniel.watr...@gmail.comwrote:
  
   Dan,
  
   I think you're right. Since in the WicketApplication init() function
 I
   attempt to get the bootStrapInjector like this:
   Injector bootStrapInjector = (Injector)
   this.getServletContext().getAttribute(Injector.class.getName());
  
   I just can't figure out how to get the injector into the
   ServletContext before init() is run in my WicketApplication.
  
   Daniel
  
   On Wed, Oct 10, 2012 at 6:10 PM, Dan Retzlaff dretzl...@gmail.com
  wrote:
Daniel,
   
What you're doing should work, but I think you're giving
your GuiceComponentInjector a null Injector. Unit tests don't go
  through
web.xml to set up its context listeners, so
your GuiceServletContextListener never has a chance to construct
 and
register an Injector with the ServletContext.
   
Dan
   
On Wed, Oct 10, 2012 at 5:30 PM, Daniel Watrous 
   daniel.watr...@gmail.comwrote:
   
Hi

Re: Wicket + Guice + unittests

[Daniel Watrous]

Dan,

I'm not talking about my application. I'm talking about unittests.
I've followed the Guice recommended way to integrate with servlets
using the GuiceFilter.

Now I'm trying to make the Wicket unittests work and I need the
injector to be available in WicketTester.

Daniel

On Thu, Oct 11, 2012 at 6:10 PM, Dan Retzlaff dretzl...@gmail.com wrote:
 For what it's worth, we instantiate our applications through Guice. Having
 your application go get its Injector kind of violates the DI concept.

 filter(/*).through(WicketFilter.class);
 bind(WebApplication.class).to(CustomWebApplication.class);
 bind(WicketFilter.class).to(CustomWicketFilter.class);

 @Singleton
 private static class CustomFilter extends WicketFilter {
 @Inject private ProviderWebApplication webApplicationProvider;
  @Override
 protected IWebApplicationFactory getApplicationFactory() {
 return new IWebApplicationFactory() {
 @Override
 public WebApplication createApplication(WicketFilter filter) {
 return webApplicationProvider.get();
 }
 @Override
 public void destroy(WicketFilter filter) {
 }
 };
 }
 }

 On Thu, Oct 11, 2012 at 11:49 PM, Daniel Watrous
 daniel.watr...@gmail.comwrote:

 Dan,

 I think you're right. Since in the WicketApplication init() function I
 attempt to get the bootStrapInjector like this:
 Injector bootStrapInjector = (Injector)
 this.getServletContext().getAttribute(Injector.class.getName());

 I just can't figure out how to get the injector into the
 ServletContext before init() is run in my WicketApplication.

 Daniel

 On Wed, Oct 10, 2012 at 6:10 PM, Dan Retzlaff dretzl...@gmail.com wrote:
  Daniel,
 
  What you're doing should work, but I think you're giving
  your GuiceComponentInjector a null Injector. Unit tests don't go through
  web.xml to set up its context listeners, so
  your GuiceServletContextListener never has a chance to construct and
  register an Injector with the ServletContext.
 
  Dan
 
  On Wed, Oct 10, 2012 at 5:30 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:
 
  Hi,
 
  I've integrated Guice into Wicket successfully, but I'm struggling
  with the unittests. I'm not sure how to get the injector into my
  HomePage class. Here's my setup.
 
  I'm using GuiceFilter with a GuiceServletContextListener. That creates
  the injector and a ServletModule which defines the WicketApplication.
  I followed:
  http://code.google.com/p/google-guice/wiki/ServletModule
 
  Here's some of MyGuiceServletConfig extends GuiceServletContextListener
 
  @Override
  protected Injector getInjector() {
  return Guice.createInjector(createServletModule(), new
  MongoHoneybadgerModule());
  }
 
  private ServletModule createServletModule() {
  return new ServletModule() {
  ...
 
  In my WicketApplication extends WebApplication I have this init() method
 
  @Override
  public void init()
  {
  super.init();
  Injector bootStrapInjector = (Injector)
  this.getServletContext().getAttribute(Injector.class.getName());
  getComponentInstantiationListeners().add(new
  GuiceComponentInjector(this, bootStrapInjector));
  }
 
  Now, in my HomePage.java class I have
 
  public class HomePage extends WebPage {
  private static final long serialVersionUID = 1L;
  @Inject private Injector injector;
 
  public HomePage(final PageParameters parameters) {
  super(parameters);
  SomeType myobj = injector.getInstance(SomeType.class);
 
  add(new Label(version, myobj.getValue()));
  }
  }
 
  This all runs great inside a web container as a servlet.
 
  The PROBLEM: I'm getting a NullPointerException on the line where I
  reference the injector:
  SomeType myobj = injector.getInstance(SomeType.class);
 
  My test class is what was generated by the wicket quickstart. I'm not
  sure how to make an injector available in setUp.
 
  @Before
  public void setUp() {
  tester = new WicketTester(new WicketApplication());
  }
 
  Any ideas?
 
  Thanks,
  Daniel
 
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Re: Wicket + Guice + unittests

[Daniel Watrous]

Dan,

Thanks. I've got unittests running now, but the WicketFilter doesn't
seem to be processing. All I get when I run the applicaiton shows a
jetty produced directory listing.

In the snippet you provided before I think that CustomFilter and
CustomeWicketFilter should be the same thing. Is that right?

In my previous approach, when I bound the WicketFilter I included some
parameters, like this:
filter(/*).through(WicketFilter.class,
createWicketFilterInitParams());

With this function

private MapString, String createWicketFilterInitParams() {
MapString, String wicketFilterParams = new HashMapString, String();
wicketFilterParams.put(WicketFilter.FILTER_MAPPING_PARAM, /*);
wicketFilterParams.put(applicationClassName,
com.hp.honeybadger.web.WicketApplication);
return wicketFilterParams;
}

I'm now trying to figure out how to make sure that the wicket filter
is called...

Daniel

On Fri, Oct 12, 2012 at 11:03 AM, Dan Retzlaff dretzl...@gmail.com wrote:
 I follow you. WicketTester doesn't know about GuiceFilter, so you'll need a
 different way of getting your Injector into your Wicket Application. Rather
 than getting the Injector from your servlet context attributes, I'm
 suggesting that you let Guice instantiate your Application so you can
 @Inject the injector like any other dependency. The binding code I posted
 previously does the (non-test) setup; for the test itself it's as simple as
 https://gist.github.com/3880246.

 Hope that helps. By the way, I enjoyed your Wicket+EC2 article. Thanks for
 that. :)

 On Fri, Oct 12, 2012 at 4:08 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:

 Dan,

 I'm not talking about my application. I'm talking about unittests.
 I've followed the Guice recommended way to integrate with servlets
 using the GuiceFilter.

 Now I'm trying to make the Wicket unittests work and I need the
 injector to be available in WicketTester.

 Daniel

 On Thu, Oct 11, 2012 at 6:10 PM, Dan Retzlaff dretzl...@gmail.com wrote:
  For what it's worth, we instantiate our applications through Guice.
 Having
  your application go get its Injector kind of violates the DI concept.
 
  filter(/*).through(WicketFilter.class);
  bind(WebApplication.class).to(CustomWebApplication.class);
  bind(WicketFilter.class).to(CustomWicketFilter.class);
 
  @Singleton
  private static class CustomFilter extends WicketFilter {
  @Inject private ProviderWebApplication webApplicationProvider;
   @Override
  protected IWebApplicationFactory getApplicationFactory() {
  return new IWebApplicationFactory() {
  @Override
  public WebApplication createApplication(WicketFilter filter) {
  return webApplicationProvider.get();
  }
  @Override
  public void destroy(WicketFilter filter) {
  }
  };
  }
  }
 
  On Thu, Oct 11, 2012 at 11:49 PM, Daniel Watrous
  daniel.watr...@gmail.comwrote:
 
  Dan,
 
  I think you're right. Since in the WicketApplication init() function I
  attempt to get the bootStrapInjector like this:
  Injector bootStrapInjector = (Injector)
  this.getServletContext().getAttribute(Injector.class.getName());
 
  I just can't figure out how to get the injector into the
  ServletContext before init() is run in my WicketApplication.
 
  Daniel
 
  On Wed, Oct 10, 2012 at 6:10 PM, Dan Retzlaff dretzl...@gmail.com
 wrote:
   Daniel,
  
   What you're doing should work, but I think you're giving
   your GuiceComponentInjector a null Injector. Unit tests don't go
 through
   web.xml to set up its context listeners, so
   your GuiceServletContextListener never has a chance to construct and
   register an Injector with the ServletContext.
  
   Dan
  
   On Wed, Oct 10, 2012 at 5:30 PM, Daniel Watrous 
  daniel.watr...@gmail.comwrote:
  
   Hi,
  
   I've integrated Guice into Wicket successfully, but I'm struggling
   with the unittests. I'm not sure how to get the injector into my
   HomePage class. Here's my setup.
  
   I'm using GuiceFilter with a GuiceServletContextListener. That
 creates
   the injector and a ServletModule which defines the WicketApplication.
   I followed:
   http://code.google.com/p/google-guice/wiki/ServletModule
  
   Here's some of MyGuiceServletConfig extends
 GuiceServletContextListener
  
   @Override
   protected Injector getInjector() {
   return Guice.createInjector(createServletModule(), new
   MongoHoneybadgerModule());
   }
  
   private ServletModule createServletModule() {
   return new ServletModule() {
   ...
  
   In my WicketApplication extends WebApplication I have this init()
 method
  
   @Override
   public void init()
   {
   super.init();
   Injector bootStrapInjector = (Injector)
   this.getServletContext().getAttribute(Injector.class.getName());
   getComponentInstantiationListeners().add(new
   GuiceComponentInjector(this, bootStrapInjector));
   }
  
   Now, in my HomePage.java class I have
  
   public class HomePage extends WebPage

Re: Wicket + Guice + unittests

[Daniel Watrous]

yes, that's what I have in my web.xml

On Fri, Oct 12, 2012 at 12:10 PM, Dan Retzlaff dretzl...@gmail.com wrote:
 Yes, CustomFilter = CustomWicketFilter... Those aren't our actual names.
 And yes, we provide filter parameters too. I just omitted them since they
 weren't relevant to the Guice-based application instantiation I was
 describing.

 Do you have this in your web.xml?
 filter
 filter-nameguiceFilter/filter-name
 filter-classcom.google.inject.servlet.GuiceFilter/filter-class
 /filter
 filter-mapping
 filter-nameguiceFilter/filter-name
 url-pattern/*/url-pattern
 /filter-mapping

 On Fri, Oct 12, 2012 at 6:01 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:

 Dan,

 Thanks. I've got unittests running now, but the WicketFilter doesn't
 seem to be processing. All I get when I run the applicaiton shows a
 jetty produced directory listing.

 In the snippet you provided before I think that CustomFilter and
 CustomeWicketFilter should be the same thing. Is that right?

 In my previous approach, when I bound the WicketFilter I included some
 parameters, like this:
 filter(/*).through(WicketFilter.class,
 createWicketFilterInitParams());

 With this function

 private MapString, String createWicketFilterInitParams() {
 MapString, String wicketFilterParams = new HashMapString,
 String();
 wicketFilterParams.put(WicketFilter.FILTER_MAPPING_PARAM, /*);
 wicketFilterParams.put(applicationClassName,
 com.hp.honeybadger.web.WicketApplication);
 return wicketFilterParams;
 }

 I'm now trying to figure out how to make sure that the wicket filter
 is called...

 Daniel

 On Fri, Oct 12, 2012 at 11:03 AM, Dan Retzlaff dretzl...@gmail.com
 wrote:
  I follow you. WicketTester doesn't know about GuiceFilter, so you'll
 need a
  different way of getting your Injector into your Wicket Application.
 Rather
  than getting the Injector from your servlet context attributes, I'm
  suggesting that you let Guice instantiate your Application so you can
  @Inject the injector like any other dependency. The binding code I posted
  previously does the (non-test) setup; for the test itself it's as simple
 as
  https://gist.github.com/3880246.
 
  Hope that helps. By the way, I enjoyed your Wicket+EC2 article. Thanks
 for
  that. :)
 
  On Fri, Oct 12, 2012 at 4:08 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:
 
  Dan,
 
  I'm not talking about my application. I'm talking about unittests.
  I've followed the Guice recommended way to integrate with servlets
  using the GuiceFilter.
 
  Now I'm trying to make the Wicket unittests work and I need the
  injector to be available in WicketTester.
 
  Daniel
 
  On Thu, Oct 11, 2012 at 6:10 PM, Dan Retzlaff dretzl...@gmail.com
 wrote:
   For what it's worth, we instantiate our applications through Guice.
  Having
   your application go get its Injector kind of violates the DI
 concept.
  
   filter(/*).through(WicketFilter.class);
   bind(WebApplication.class).to(CustomWebApplication.class);
   bind(WicketFilter.class).to(CustomWicketFilter.class);
  
   @Singleton
   private static class CustomFilter extends WicketFilter {
   @Inject private ProviderWebApplication webApplicationProvider;
@Override
   protected IWebApplicationFactory getApplicationFactory() {
   return new IWebApplicationFactory() {
   @Override
   public WebApplication createApplication(WicketFilter filter) {
   return webApplicationProvider.get();
   }
   @Override
   public void destroy(WicketFilter filter) {
   }
   };
   }
   }
  
   On Thu, Oct 11, 2012 at 11:49 PM, Daniel Watrous
   daniel.watr...@gmail.comwrote:
  
   Dan,
  
   I think you're right. Since in the WicketApplication init() function
 I
   attempt to get the bootStrapInjector like this:
   Injector bootStrapInjector = (Injector)
   this.getServletContext().getAttribute(Injector.class.getName());
  
   I just can't figure out how to get the injector into the
   ServletContext before init() is run in my WicketApplication.
  
   Daniel
  
   On Wed, Oct 10, 2012 at 6:10 PM, Dan Retzlaff dretzl...@gmail.com
  wrote:
Daniel,
   
What you're doing should work, but I think you're giving
your GuiceComponentInjector a null Injector. Unit tests don't go
  through
web.xml to set up its context listeners, so
your GuiceServletContextListener never has a chance to construct
 and
register an Injector with the ServletContext.
   
Dan
   
On Wed, Oct 10, 2012 at 5:30 PM, Daniel Watrous 
   daniel.watr...@gmail.comwrote:
   
Hi,
   
I've integrated Guice into Wicket successfully, but I'm struggling
with the unittests. I'm not sure how to get the injector into my
HomePage class. Here's my setup.
   
I'm using GuiceFilter with a GuiceServletContextListener. That
  creates
the injector and a ServletModule which defines the
 WicketApplication.
I followed:
http://code.google.com/p/google-guice/wiki/ServletModule
   
Here's some

Re: Wicket + Guice + unittests

[Daniel Watrous]

Dan,

I think you're right. Since in the WicketApplication init() function I
attempt to get the bootStrapInjector like this:
Injector bootStrapInjector = (Injector)
this.getServletContext().getAttribute(Injector.class.getName());

I just can't figure out how to get the injector into the
ServletContext before init() is run in my WicketApplication.

Daniel

On Wed, Oct 10, 2012 at 6:10 PM, Dan Retzlaff dretzl...@gmail.com wrote:
 Daniel,

 What you're doing should work, but I think you're giving
 your GuiceComponentInjector a null Injector. Unit tests don't go through
 web.xml to set up its context listeners, so
 your GuiceServletContextListener never has a chance to construct and
 register an Injector with the ServletContext.

 Dan

 On Wed, Oct 10, 2012 at 5:30 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:

 Hi,

 I've integrated Guice into Wicket successfully, but I'm struggling
 with the unittests. I'm not sure how to get the injector into my
 HomePage class. Here's my setup.

 I'm using GuiceFilter with a GuiceServletContextListener. That creates
 the injector and a ServletModule which defines the WicketApplication.
 I followed:
 http://code.google.com/p/google-guice/wiki/ServletModule

 Here's some of MyGuiceServletConfig extends GuiceServletContextListener

 @Override
 protected Injector getInjector() {
 return Guice.createInjector(createServletModule(), new
 MongoHoneybadgerModule());
 }

 private ServletModule createServletModule() {
 return new ServletModule() {
 ...

 In my WicketApplication extends WebApplication I have this init() method

 @Override
 public void init()
 {
 super.init();
 Injector bootStrapInjector = (Injector)
 this.getServletContext().getAttribute(Injector.class.getName());
 getComponentInstantiationListeners().add(new
 GuiceComponentInjector(this, bootStrapInjector));
 }

 Now, in my HomePage.java class I have

 public class HomePage extends WebPage {
 private static final long serialVersionUID = 1L;
 @Inject private Injector injector;

 public HomePage(final PageParameters parameters) {
 super(parameters);
 SomeType myobj = injector.getInstance(SomeType.class);

 add(new Label(version, myobj.getValue()));
 }
 }

 This all runs great inside a web container as a servlet.

 The PROBLEM: I'm getting a NullPointerException on the line where I
 reference the injector:
 SomeType myobj = injector.getInstance(SomeType.class);

 My test class is what was generated by the wicket quickstart. I'm not
 sure how to make an injector available in setUp.

 @Before
 public void setUp() {
 tester = new WicketTester(new WicketApplication());
 }

 Any ideas?

 Thanks,
 Daniel

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Re: Wicket + Guice + unittests

[Daniel Watrous]

Thanks Ronan,

Can you share the implementation of StubProjectorApplication? That
doesn't appear to be part of Wicket or Guice.

Daniel

On Wed, Oct 10, 2012 at 12:29 PM, Ronan O'Connell
ronanoconnell1...@gmail.com wrote:
 Hi Daniel,

 I'm using Guice in a couple of wicket projects though my understanding of it
 is a little limited! My set-up matches yours except that in my unit test
 setup I call injectMembers :

 @Before
 public void setUp()
 {
 final StubProjectorApplication stubApplication = new
 StubProjectorApplication();
 _tester = new WicketTester(stubApplication);
 stubApplication.getWarpInjector().injectMembers(this); //
 getWarpInjector returns the injector built in the init method
 }

 I'm not sure this is right..it feels to me that it shouldn't be be
 necessary, but it works for me :) .

 Ronan


 On 10/10/2012 18:30, Daniel Watrous wrote:

 Hi,

 I've integrated Guice into Wicket successfully, but I'm struggling
 with the unittests. I'm not sure how to get the injector into my
 HomePage class. Here's my setup.

 I'm using GuiceFilter with a GuiceServletContextListener. That creates
 the injector and a ServletModule which defines the WicketApplication.
 I followed:
 http://code.google.com/p/google-guice/wiki/ServletModule

 Here's some of MyGuiceServletConfig extends GuiceServletContextListener

  @Override
  protected Injector getInjector() {
  return Guice.createInjector(createServletModule(), new
 MongoHoneybadgerModule());
  }

  private ServletModule createServletModule() {
  return new ServletModule() {
 ...

 In my WicketApplication extends WebApplication I have this init() method

  @Override
  public void init()
  {
  super.init();
  Injector bootStrapInjector = (Injector)
 this.getServletContext().getAttribute(Injector.class.getName());
  getComponentInstantiationListeners().add(new
 GuiceComponentInjector(this, bootStrapInjector));
  }

 Now, in my HomePage.java class I have

 public class HomePage extends WebPage {
  private static final long serialVersionUID = 1L;
  @Inject private Injector injector;

  public HomePage(final PageParameters parameters) {
 super(parameters);
  SomeType myobj = injector.getInstance(SomeType.class);

 add(new Label(version, myobj.getValue()));
  }
 }

 This all runs great inside a web container as a servlet.

 The PROBLEM: I'm getting a NullPointerException on the line where I
 reference the injector:
  SomeType myobj = injector.getInstance(SomeType.class);

 My test class is what was generated by the wicket quickstart. I'm not
 sure how to make an injector available in setUp.

  @Before
  public void setUp() {
  tester = new WicketTester(new WicketApplication());
  }

 Any ideas?

 Thanks,
 Daniel

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Re: set locale in cookie

[Daniel Suckow]

You can use RequestCycleListener to change locale setting in case . In
Application init():

getRequestCycleListeners().add(new RequestLocaleListener());

public class RequestLocaleListener extends AbstractRequestCycleListener
{

public static final String LOCALE_COOKIE = LC;

public void onBeginRequest(RequestCycle cycle) {
if
(WebRequest.class.isAssignableFrom(cycle.getRequest().getClass())) {
WebRequest webrequest = (WebRequest) cycle.getRequest();
Cookie localeCookie = webrequest.getCookie(LOCALE_COOKIE);
if (localeCookie != null) {
for (Locale l : Locale.getAvailableLocales()) {
// expect language as cookie value
if
(localeCookie.getValue().equalsIgnoreCase(l.getLanguage())) {
Session.get().setLocale(l);
break;
}
}
}
}
}
}

2012/6/10 oliver.stef ova...@gmail.com

 Thanks again!
 It's now much clearer!!

 for some reason i have error on CookieUtils... so i implement it like this:
 (on my HomePage.java)

 form.add(new SubmitLink(English){
@Override
public void onSubmit() {
getSession().setLocale(new Locale(en_US));

Cookie languageCookie = new
 Cookie(WicketApplication.LANGUAGE_COOKIE_NAME, en_US);

  languageCookie.setMaxAge(WicketApplication.LANGUAGE_COOKIE_AGE);
((WebResponse)getResponse()).addCookie(languageCookie);
}
});

 *one last thing:*
 so the Session.get().setLocale(locale) i should implement in
 WicketApplication?
 like this:
 @Override
public Session newSession(Request request, Response response) {

Session session = super.newSession(request, response);
session = trySetLanguageFromCookie(session, request, response);

return session;
}

private Session trySetLanguageFromCookie(Session session, Request
 request,
 Response response) {

Cookie[] cookies = ((WebRequest) request).getCookies();

if (cookies == null || cookies.length == 0) {
return session;
}

for (Cookie cookie : cookies) {
if (LANGUAGE_COOKIE_NAME.equals(cookie.getName())) {
session.setLocale(new Locale(cookie.getValue()));

cookie.setMaxAge(LANGUAGE_COOKIE_AGE);

((WebResponse)response).addCookie(cookie);
break;
}
}

return session;
}

 10x!

 --
 View this message in context:
 http://apache-wicket.1842946.n4.nabble.com/set-locale-in-cookie-tp4649827p4649831.html
 Sent from the Users forum mailing list archive at Nabble.com.

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-- 
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Re: Wicket and Menu support

[Daniel Neugebauer]

Depending on how your menus are supposed to be defined, you could
statically put them into your markup or dynamically create them by using
a ListView or similar.

A nested HTML list structure, as already suggested, usually works best.
There are a lot of ready-to-use CSS examples and JavaScript libraries to
handle such menus, if you don't want to write it yourself.

On 04/08/2012 07:52 AM, msalman wrote:
 I thought that the idea behind Wicket is to take care of these things for
 Java programmers.  I would appreciate if some basic form of menu is made
 part of wicket core.

Wicket is one of the few frameworks that leave you in full control of
your markup, which means that it does not provide a lot of
ready-to-include components that include markup and a full style.
Instead it works more like casting your markup to Java components, so
your HTML code becomes accessible from Java.

There are of course some ready-to-use components in wicket-stuff etc.
but less in Wicket core. This way, you are not forced to follow an HTML
structure or CSS classes someone else wrote that may clash with the
design you had in mind (modal dialogs are one exception, apart from that
and trees I can't think of many standard components that use a
noticeable amount of their own HTML/CSS).

If you want to avoid HTML/CSS as far as possible, other frameworks may
fit better. For example, you can avoid HTML/CSS almost completely with
Vaadin or GWT if you don't need any custom layout (if you do, it can be
a lot of work to style it). And then there are a lot of frameworks that
are easier to style but require you to write some HTML/CSS yourself.

If you want to stay with Wicket, you should get more comfortable with
HTML and CSS (which will take a lot of exercise to get it right) or
leave writing templates up to a web designer, which (due to a good
separation of templates and code) is far easier in Wicket than with
other frameworks. In most cases, you can simply take a design, add
Wicket XML tags/attributes to it and start using that template from your
code.

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How to modify attribute (eg. class) in component with setRenderBodyOnly(true) ?

[Daniel Stoch]

Hi,

Is it possible to modify tag attribute (eg. add a CSS class) of
component which has set renderBodyOnly flag to true?
When using component.add(new AttributeModifier(...)) it has no effect,
because a tag in which this class attribute is appended is not
rendered in HTML (because of setRenderBodyOnly(true)).

Here is an example:
LinkContainer is a component (extends Panel) which has setRenderBodyOnly(true).

wicket:panel
a wicket:id=linkwicket:container wicket:id=linkContent[link
content]/wicket:container/a
/wicket:panel

Somewhere inside a page or panel:
add(new LinkContainer(link, ...).add(new AttributeModifier(class,
Model.of(my-link-style;
But of course this  class='my-link-style'  will not be rendered anywhere.

I want to add a class attribute to contained a tag but using a
behavior which can be added to the whole LinkContainer. Is it any
simple solution to achieve this?

--
DS

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Re: How to modify attribute (eg. class) in component with setRenderBodyOnly(true) ?

[Daniel Stoch]

No. I want to have a. When you use this LinkContainer from my
example in HTML like:
div wicket:id=link
/div

It will be rendered as:

a wicket:id=link.../a

So any attributes modified using behavior will disappear.


But if LinkContainer will not have setRenderBodyOnly(true), the the
corresponding HTML will be:

div wicket:id=link class='my-link-style'
  a wicket:id=link.../a
/div


--
DS

On Wed, Feb 22, 2012 at 11:49 AM, Martin Grigorov mgrigo...@apache.org wrote:
 Hi,

 So you want to not have a (because this is what
 .setRenderBodyOnly(true) does) and in the same time you want to set a
 class an that non-existing tag ?!

 The easiest way is to remove the call to .setRenderBodyOnly(true).

 On Wed, Feb 22, 2012 at 11:38 AM, Daniel Stoch daniel.st...@gmail.com wrote:
 Hi,

 Is it possible to modify tag attribute (eg. add a CSS class) of
 component which has set renderBodyOnly flag to true?
 When using component.add(new AttributeModifier(...)) it has no effect,
 because a tag in which this class attribute is appended is not
 rendered in HTML (because of setRenderBodyOnly(true)).

 Here is an example:
 LinkContainer is a component (extends Panel) which has 
 setRenderBodyOnly(true).

 wicket:panel
        a wicket:id=linkwicket:container wicket:id=linkContent[link
 content]/wicket:container/a
 /wicket:panel

 Somewhere inside a page or panel:
 add(new LinkContainer(link, ...).add(new AttributeModifier(class,
 Model.of(my-link-style;
 But of course this  class='my-link-style'  will not be rendered anywhere.

 I want to add a class attribute to contained a tag but using a
 behavior which can be added to the whole LinkContainer. Is it any
 simple solution to achieve this?

 --
 DS

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 --
 Martin Grigorov
 jWeekend
 Training, Consulting, Development
 http://jWeekend.com

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Re: How to modify attribute (eg. class) in component with setRenderBodyOnly(true) ?

[Daniel Stoch]

On Wed, Feb 22, 2012 at 12:11 PM, Martin Grigorov mgrigo...@apache.org wrote:
 On Wed, Feb 22, 2012 at 12:01 PM, Daniel Stoch daniel.st...@gmail.com wrote:
 No. I want to have a. When you use this LinkContainer from my
 example in HTML like:
 div wicket:id=link
 /div

 It will be rendered as:

 a wicket:id=link.../a

 So any attributes modified using behavior will disappear.


 But if LinkContainer will not have setRenderBodyOnly(true), the the
 corresponding HTML will be:

 div wicket:id=link class='my-link-style'
  a wicket:id=link.../a
 /div

 Now it is more clear what you do.
 You need to add the AttributeModifier to the Link, not to the
 LinkContainer if you want to manipulate a.


Well, I know it is possible in this way. But my question is more
general: does using behaviors which changes a markup (like
AttributeModifier) on components with setRenderBodyOnly(true) make
sense?

To add the AttributeModifier to the Link I have to write extra method
inside a LinkContainer which adds a behavior to enclosing component
(Link is created inside LinkContainer and because of ecapsulation it
should not be visible outside it). But the cleaner solution will be to
add a behavior to LinkContainer, but then it should be transparently
added to the one of its child components.
Then I can use AttributeModifier (or related behaviors) the same way
with component which has setRenderBodyOnly(true) or not. But now I
need to know a component implementation to decide if I can use such
modifiers with it or no.

--
DS

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Re: How to modify attribute (eg. class) in component with setRenderBodyOnly(true) ?

[Daniel Stoch]

On Wed, Feb 22, 2012 at 12:31 PM, Martin Grigorov mgrigo...@apache.org wrote:
 On Wed, Feb 22, 2012 at 12:20 PM, Daniel Stoch daniel.st...@gmail.com wrote:
 On Wed, Feb 22, 2012 at 12:11 PM, Martin Grigorov mgrigo...@apache.org 
 wrote:
 On Wed, Feb 22, 2012 at 12:01 PM, Daniel Stoch daniel.st...@gmail.com 
 wrote:
 No. I want to have a. When you use this LinkContainer from my
 example in HTML like:
 div wicket:id=link
 /div

 It will be rendered as:

 a wicket:id=link.../a

 So any attributes modified using behavior will disappear.


 But if LinkContainer will not have setRenderBodyOnly(true), the the
 corresponding HTML will be:

 div wicket:id=link class='my-link-style'
  a wicket:id=link.../a
 /div

 Now it is more clear what you do.
 You need to add the AttributeModifier to the Link, not to the
 LinkContainer if you want to manipulate a.


 Well, I know it is possible in this way. But my question is more
 general: does using behaviors which changes a markup (like
 AttributeModifier) on components with setRenderBodyOnly(true) make
 sense?

 No.


 To add the AttributeModifier to the Link I have to write extra method
 inside a LinkContainer which adds a behavior to enclosing component
 (Link is created inside LinkContainer and because of ecapsulation it
 should not be visible outside it). But the cleaner solution will be to
 add a behavior to LinkContainer, but then it should be transparently
 added to the one of its child components.

 To which child exactly ? How to decide that for you ?

 Then I can use AttributeModifier (or related behaviors) the same way
 with component which has setRenderBodyOnly(true) or not. But now I
 need to know a component implementation to decide if I can use such
 modifiers with it or no.

 Each behavior has a reference to the component it is bound to. So you
 can assign your own Behavior to the parent class and then in
 behavior's onComponentTag, renderHead(), ... you can do whatever you
 need with the parent and all its children. It is a bit harder to get
 the children ComponentTags but it is possible: new
 MarkupStream(getMarkup()) and iterate over the elements in the
 MarkupStream.


Thanks for your feedback and suggestions.

I have done a simple behavior to achieve what I want. Maybe this is
not very elegant solution but it should work. It writes out attributes
added as AttributeModifiers to a parent component to a child component
which has this behavior.

public class AttributeModifierPropagator extends AbstractBehavior {

  private final MarkupContainer parent;

  public AttributeModifierPropagator(MarkupContainer parent) {
super();
if (parent == null) {
  throw new IllegalArgumentException(Argument [parent] cannot be null);
}
this.parent = parent;
  }

  @Override
  public void onComponentTag(Component component, ComponentTag tag) {
for (IBehavior behavior : parent.getBehaviors()) {
  if ((behavior instanceof AttributeModifier) || (behavior
instanceof SimpleAttributeModifier)) {
behavior.onComponentTag(component, tag);
  }
}
  }

}

And then inside a LinkContainer after creating nested Link link I can
add this behavior to it:
link.add(new AttributeModifierPropagator(this));

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Re: Reload html in Wicket + GAE

[Daniel Watrous]

Thanks Martin,

I did make that much progress yesterday after sending this, but I
can't figure out how to get the Application inside the onBeginRequest
method that I override. In the other examples they call
getApplication()

@Override
protected void onBeginRequest() {
if 
(getApplication().getConfigurationType().equals(Application.DEVELOPMENT))
{
final GaeModificationWatcher resourceWatcher =
(GaeModificationWatcher) getApplication()
.getResourceSettings().getResourceWatcher(true);
resourceWatcher.checkResources();
}
}

How can I get the Application object?

Daniel

On Mon, Feb 6, 2012 at 11:43 PM, Martin Grigorov mgrigo...@apache.org wrote:
 Hi,

 On Tue, Feb 7, 2012 at 1:32 AM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 Hi,

 I'm following up on a previous thread that's still unresolved. I would
 like GAE to automatically reload my HTML when I save changes. Classes
 are reloaded when I save (compile) them, but I have to restart each
 time for HTML changes.

 There are some old articles that show how to do this, but they deal
 with older versions of Wicket and GAE. For example:
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
 http://apache-wicket.1842946.n4.nabble.com/How-can-I-reload-HTML-in-app-engine-td3005241.html
 http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/ui/wicket/GAEModificationWatcher.java

 Those suggest creating a class MyWebRequestCycle extends
 WebRequestCycle, but wicket 1.5 doesn't have WebRequestCycle.

 How can I accomplish this same thing in the current version of wicket?

 application.getRequestCycleListeners().add(new MyRequestCycleListener())

 class MyRequestCycleListener extends AbstractRequestCycleListener {
  // override the method you need here
 }

 Once you have it you can contribute it to gae-initializer project so
 other people can re-use it and improve it.


 Daniel

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org




 --
 Martin Grigorov
 jWeekend
 Training, Consulting, Development
 http://jWeekend.com

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org


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Re: Reload html in Wicket + GAE

[Daniel Watrous]

I've now created a class MyRequestCycleListener extends
AbstractRequestCycleListener.

I'm having a little trouble building  class GaeModificationWatcher
implements IModificationWatcher. I've tried following this example:
http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html

to create the public void checkResources() function, but I'm not sure
what Entry class to import. I have tried importing these two Entry
classes:
org.apache.wicket.util.collections.IntHashMap.Entry
import com.google.appengine.repackaged.com.google.common.collect.Multiset.Entry

It seems no matter which Entry class I import I get errors like:

Multiple markers at this line
- Entry cannot be resolved to a type
- The constructor
HashSetEntryIModifiable,SetIChangeListener(SetMap.EntryIModifiable,SetIChangeListener)
is
 undefined
- Incorrect number of arguments for type IntHashMap.Entry; it cannot
be parameterized with arguments IModifiable,
 SetIChangeListener

Thanks for any pointers.

Daniel


On Tue, Feb 7, 2012 at 7:07 AM, Martin Grigorov mgrigo...@apache.org wrote:
 On Tue, Feb 7, 2012 at 3:53 PM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 Thanks Martin,

 I did make that much progress yesterday after sending this, but I
 can't figure out how to get the Application inside the onBeginRequest
 method that I override. In the other examples they call
 getApplication()

    @Override
    protected void onBeginRequest() {
        if 
 (getApplication().getConfigurationType().equals(Application.DEVELOPMENT))
 {
            final GaeModificationWatcher resourceWatcher =
 (GaeModificationWatcher) getApplication()
                    .getResourceSettings().getResourceWatcher(true);
            resourceWatcher.checkResources();
        }
    }

 How can I get the Application object?

 Application.get()


 Daniel

 On Mon, Feb 6, 2012 at 11:43 PM, Martin Grigorov mgrigo...@apache.org 
 wrote:
 Hi,

 On Tue, Feb 7, 2012 at 1:32 AM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 Hi,

 I'm following up on a previous thread that's still unresolved. I would
 like GAE to automatically reload my HTML when I save changes. Classes
 are reloaded when I save (compile) them, but I have to restart each
 time for HTML changes.

 There are some old articles that show how to do this, but they deal
 with older versions of Wicket and GAE. For example:
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
 http://apache-wicket.1842946.n4.nabble.com/How-can-I-reload-HTML-in-app-engine-td3005241.html
 http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/ui/wicket/GAEModificationWatcher.java

 Those suggest creating a class MyWebRequestCycle extends
 WebRequestCycle, but wicket 1.5 doesn't have WebRequestCycle.

 How can I accomplish this same thing in the current version of wicket?

 application.getRequestCycleListeners().add(new MyRequestCycleListener())

 class MyRequestCycleListener extends AbstractRequestCycleListener {
  // override the method you need here
 }

 Once you have it you can contribute it to gae-initializer project so
 other people can re-use it and improve it.


 Daniel

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org




 --
 Martin Grigorov
 jWeekend
 Training, Consulting, Development
 http://jWeekend.com

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org


 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org




 --
 Martin Grigorov
 jWeekend
 Training, Consulting, Development
 http://jWeekend.com

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org


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Re: Reload html in Wicket + GAE

[Daniel Watrous]

That helped. I'm getting really close.

I'm now getting a null pointer exception in this function

public boolean add(IModifiable modifiable, IChangeListener listener) {
// TODO Auto-generated method stub
checkResources();
SetIChangeListener listeners = 
listenersMap.putIfAbsent(modifiable,
new HashSetIChangeListener());
return listeners.add(listener);
}

listeners is null.

I noticed that start(Duration pollFrequency) in GaeModificationWatcher
was never getting called, so I updated my WicketApplication to set it
like this:

IModificationWatcher watcher = new GaeModificationWatcher();
watcher.start(Duration.ONE_SECOND);
getResourceSettings().setResourceWatcher(watcher);

But that didn't help my problem. I'm still trying to follow
http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html

Any pointers?

Thanks,
Daniel

On Tue, Feb 7, 2012 at 8:42 AM, Martin Grigorov mgrigo...@apache.org wrote:
 Try with java.util.Map.Entry

 On Tue, Feb 7, 2012 at 5:39 PM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 I've now created a class MyRequestCycleListener extends
 AbstractRequestCycleListener.

 I'm having a little trouble building  class GaeModificationWatcher
 implements IModificationWatcher. I've tried following this example:
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html

 to create the public void checkResources() function, but I'm not sure
 what Entry class to import. I have tried importing these two Entry
 classes:
 org.apache.wicket.util.collections.IntHashMap.Entry
 import 
 com.google.appengine.repackaged.com.google.common.collect.Multiset.Entry

 It seems no matter which Entry class I import I get errors like:

 Multiple markers at this line
        - Entry cannot be resolved to a type
        - The constructor
 HashSetEntryIModifiable,SetIChangeListener(SetMap.EntryIModifiable,SetIChangeListener)
 is
         undefined
        - Incorrect number of arguments for type IntHashMap.Entry; it cannot
 be parameterized with arguments IModifiable,
         SetIChangeListener

 Thanks for any pointers.

 Daniel


 On Tue, Feb 7, 2012 at 7:07 AM, Martin Grigorov mgrigo...@apache.org wrote:
 On Tue, Feb 7, 2012 at 3:53 PM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 Thanks Martin,

 I did make that much progress yesterday after sending this, but I
 can't figure out how to get the Application inside the onBeginRequest
 method that I override. In the other examples they call
 getApplication()

    @Override
    protected void onBeginRequest() {
        if 
 (getApplication().getConfigurationType().equals(Application.DEVELOPMENT))
 {
            final GaeModificationWatcher resourceWatcher =
 (GaeModificationWatcher) getApplication()
                    .getResourceSettings().getResourceWatcher(true);
            resourceWatcher.checkResources();
        }
    }

 How can I get the Application object?

 Application.get()


 Daniel

 On Mon, Feb 6, 2012 at 11:43 PM, Martin Grigorov mgrigo...@apache.org 
 wrote:
 Hi,

 On Tue, Feb 7, 2012 at 1:32 AM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 Hi,

 I'm following up on a previous thread that's still unresolved. I would
 like GAE to automatically reload my HTML when I save changes. Classes
 are reloaded when I save (compile) them, but I have to restart each
 time for HTML changes.

 There are some old articles that show how to do this, but they deal
 with older versions of Wicket and GAE. For example:
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
 http://apache-wicket.1842946.n4.nabble.com/How-can-I-reload-HTML-in-app-engine-td3005241.html
 http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/ui/wicket/GAEModificationWatcher.java

 Those suggest creating a class MyWebRequestCycle extends
 WebRequestCycle, but wicket 1.5 doesn't have WebRequestCycle.

 How can I accomplish this same thing in the current version of wicket?

 application.getRequestCycleListeners().add(new MyRequestCycleListener())

 class MyRequestCycleListener extends AbstractRequestCycleListener {
  // override the method you need here
 }

 Once you have it you can contribute it to gae-initializer project so
 other people can re-use it and improve it.


 Daniel

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org




 --
 Martin Grigorov
 jWeekend
 Training, Consulting, Development
 http://jWeekend.com

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org


 -
 To unsubscribe, e-mail: users

Re: Reload html in Wicket + GAE

[Daniel Watrous]

So I was just looking at what I sent along and it seems that
putIfAbsent(modifiable, new HashSetIChangeListener()) should return
the value component, which should be the new HashSetIChangeListener.
Even if the key modifiable already exists, it should return the
previously created HashSetIChangeListener.

I'm confused that listener is coming back null.

Daniel

On Tue, Feb 7, 2012 at 9:21 AM, Daniel Watrous daniel.watr...@gmail.com wrote:
 That helped. I'm getting really close.

 I'm now getting a null pointer exception in this function

        public boolean add(IModifiable modifiable, IChangeListener listener) {
                // TODO Auto-generated method stub
                checkResources();
                SetIChangeListener listeners = 
 listenersMap.putIfAbsent(modifiable,
                                new HashSetIChangeListener());
                return listeners.add(listener);
        }

 listeners is null.

 I noticed that start(Duration pollFrequency) in GaeModificationWatcher
 was never getting called, so I updated my WicketApplication to set it
 like this:

                IModificationWatcher watcher = new GaeModificationWatcher();
                watcher.start(Duration.ONE_SECOND);
                getResourceSettings().setResourceWatcher(watcher);

 But that didn't help my problem. I'm still trying to follow
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html

 Any pointers?

 Thanks,
 Daniel

 On Tue, Feb 7, 2012 at 8:42 AM, Martin Grigorov mgrigo...@apache.org wrote:
 Try with java.util.Map.Entry

 On Tue, Feb 7, 2012 at 5:39 PM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 I've now created a class MyRequestCycleListener extends
 AbstractRequestCycleListener.

 I'm having a little trouble building  class GaeModificationWatcher
 implements IModificationWatcher. I've tried following this example:
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html

 to create the public void checkResources() function, but I'm not sure
 what Entry class to import. I have tried importing these two Entry
 classes:
 org.apache.wicket.util.collections.IntHashMap.Entry
 import 
 com.google.appengine.repackaged.com.google.common.collect.Multiset.Entry

 It seems no matter which Entry class I import I get errors like:

 Multiple markers at this line
        - Entry cannot be resolved to a type
        - The constructor
 HashSetEntryIModifiable,SetIChangeListener(SetMap.EntryIModifiable,SetIChangeListener)
 is
         undefined
        - Incorrect number of arguments for type IntHashMap.Entry; it cannot
 be parameterized with arguments IModifiable,
         SetIChangeListener

 Thanks for any pointers.

 Daniel


 On Tue, Feb 7, 2012 at 7:07 AM, Martin Grigorov mgrigo...@apache.org 
 wrote:
 On Tue, Feb 7, 2012 at 3:53 PM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 Thanks Martin,

 I did make that much progress yesterday after sending this, but I
 can't figure out how to get the Application inside the onBeginRequest
 method that I override. In the other examples they call
 getApplication()

    @Override
    protected void onBeginRequest() {
        if 
 (getApplication().getConfigurationType().equals(Application.DEVELOPMENT))
 {
            final GaeModificationWatcher resourceWatcher =
 (GaeModificationWatcher) getApplication()
                    .getResourceSettings().getResourceWatcher(true);
            resourceWatcher.checkResources();
        }
    }

 How can I get the Application object?

 Application.get()


 Daniel

 On Mon, Feb 6, 2012 at 11:43 PM, Martin Grigorov mgrigo...@apache.org 
 wrote:
 Hi,

 On Tue, Feb 7, 2012 at 1:32 AM, Daniel Watrous 
 daniel.watr...@gmail.com wrote:
 Hi,

 I'm following up on a previous thread that's still unresolved. I would
 like GAE to automatically reload my HTML when I save changes. Classes
 are reloaded when I save (compile) them, but I have to restart each
 time for HTML changes.

 There are some old articles that show how to do this, but they deal
 with older versions of Wicket and GAE. For example:
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
 http://apache-wicket.1842946.n4.nabble.com/How-can-I-reload-HTML-in-app-engine-td3005241.html
 http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/ui/wicket/GAEModificationWatcher.java

 Those suggest creating a class MyWebRequestCycle extends
 WebRequestCycle, but wicket 1.5 doesn't have WebRequestCycle.

 How can I accomplish this same thing in the current version of wicket?

 application.getRequestCycleListeners().add(new MyRequestCycleListener())

 class MyRequestCycleListener extends AbstractRequestCycleListener {
  // override the method you need here
 }

 Once you have it you can contribute it to gae-initializer project so
 other people can re-use it and improve it.


 Daniel

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org

Re: Reload html in Wicket + GAE

[Daniel Watrous]

I finally got it working. Here's the modified function:

public boolean add(IModifiable modifiable, IChangeListener listener) {
// TODO Auto-generated method stub
checkResources();
HashSetIChangeListener listenerSet = new 
HashSetIChangeListener();
SetIChangeListener listeners =
listenersMap.putIfAbsent(modifiable, listenerSet);
if (listeners != null) {
return listeners.add(listener);
} else return listenerSet.add(listener);
}

I'm not sure if that's a good approach or not, but it works for me and
that's fantastic.

Daniel

On Tue, Feb 7, 2012 at 9:30 AM, Daniel Watrous daniel.watr...@gmail.com wrote:
 So I was just looking at what I sent along and it seems that
 putIfAbsent(modifiable, new HashSetIChangeListener()) should return
 the value component, which should be the new HashSetIChangeListener.
 Even if the key modifiable already exists, it should return the
 previously created HashSetIChangeListener.

 I'm confused that listener is coming back null.

 Daniel

 On Tue, Feb 7, 2012 at 9:21 AM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 That helped. I'm getting really close.

 I'm now getting a null pointer exception in this function

        public boolean add(IModifiable modifiable, IChangeListener listener) {
                // TODO Auto-generated method stub
                checkResources();
                SetIChangeListener listeners = 
 listenersMap.putIfAbsent(modifiable,
                                new HashSetIChangeListener());
                return listeners.add(listener);
        }

 listeners is null.

 I noticed that start(Duration pollFrequency) in GaeModificationWatcher
 was never getting called, so I updated my WicketApplication to set it
 like this:

                IModificationWatcher watcher = new GaeModificationWatcher();
                watcher.start(Duration.ONE_SECOND);
                getResourceSettings().setResourceWatcher(watcher);

 But that didn't help my problem. I'm still trying to follow
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html

 Any pointers?

 Thanks,
 Daniel

 On Tue, Feb 7, 2012 at 8:42 AM, Martin Grigorov mgrigo...@apache.org wrote:
 Try with java.util.Map.Entry

 On Tue, Feb 7, 2012 at 5:39 PM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 I've now created a class MyRequestCycleListener extends
 AbstractRequestCycleListener.

 I'm having a little trouble building  class GaeModificationWatcher
 implements IModificationWatcher. I've tried following this example:
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html

 to create the public void checkResources() function, but I'm not sure
 what Entry class to import. I have tried importing these two Entry
 classes:
 org.apache.wicket.util.collections.IntHashMap.Entry
 import 
 com.google.appengine.repackaged.com.google.common.collect.Multiset.Entry

 It seems no matter which Entry class I import I get errors like:

 Multiple markers at this line
        - Entry cannot be resolved to a type
        - The constructor
 HashSetEntryIModifiable,SetIChangeListener(SetMap.EntryIModifiable,SetIChangeListener)
 is
         undefined
        - Incorrect number of arguments for type IntHashMap.Entry; it cannot
 be parameterized with arguments IModifiable,
         SetIChangeListener

 Thanks for any pointers.

 Daniel


 On Tue, Feb 7, 2012 at 7:07 AM, Martin Grigorov mgrigo...@apache.org 
 wrote:
 On Tue, Feb 7, 2012 at 3:53 PM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 Thanks Martin,

 I did make that much progress yesterday after sending this, but I
 can't figure out how to get the Application inside the onBeginRequest
 method that I override. In the other examples they call
 getApplication()

    @Override
    protected void onBeginRequest() {
        if 
 (getApplication().getConfigurationType().equals(Application.DEVELOPMENT))
 {
            final GaeModificationWatcher resourceWatcher =
 (GaeModificationWatcher) getApplication()
                    .getResourceSettings().getResourceWatcher(true);
            resourceWatcher.checkResources();
        }
    }

 How can I get the Application object?

 Application.get()


 Daniel

 On Mon, Feb 6, 2012 at 11:43 PM, Martin Grigorov mgrigo...@apache.org 
 wrote:
 Hi,

 On Tue, Feb 7, 2012 at 1:32 AM, Daniel Watrous 
 daniel.watr...@gmail.com wrote:
 Hi,

 I'm following up on a previous thread that's still unresolved. I would
 like GAE to automatically reload my HTML when I save changes. Classes
 are reloaded when I save (compile) them, but I have to restart each
 time for HTML changes.

 There are some old articles that show how to do this, but they deal
 with older versions of Wicket and GAE. For example:
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
 http://apache-wicket.1842946.n4.nabble.com/How-can-I-reload-HTML-in-app-engine-td3005241

Re: Reload html in Wicket + GAE

[Daniel Watrous]

Here's my write up:
http://software.danielwatrous.com/software-engineering/wicket-gae-automatic-reload

I'm not sure if I can push directly into wicketstuff, but I'm happy to
try. You can grab the source from my site and put it in there. You may
even have a more clever way to composing things.

Daniel

On Tue, Feb 7, 2012 at 12:17 PM, Kayode Odeyemi drey...@gmail.com wrote:
 Glad you got it working Daniel, as Martin mentioned earlier, I'll
 appreciate if you can contribute this to existing GaeInitializer or
 somewhere comfortable with the full code so it can be valuable to us all.

 Thanks

 On Tue, Feb 7, 2012 at 5:31 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:

 I finally got it working. Here's the modified function:

        public boolean add(IModifiable modifiable, IChangeListener
 listener) {
                // TODO Auto-generated method stub
                checkResources();
                 HashSetIChangeListener listenerSet = new
 HashSetIChangeListener();
                SetIChangeListener listeners =
 listenersMap.putIfAbsent(modifiable, listenerSet);
                if (listeners != null) {
                        return listeners.add(listener);
                } else return listenerSet.add(listener);
        }

 I'm not sure if that's a good approach or not, but it works for me and
 that's fantastic.

 Daniel

 On Tue, Feb 7, 2012 at 9:30 AM, Daniel Watrous daniel.watr...@gmail.com
 wrote:
  So I was just looking at what I sent along and it seems that
  putIfAbsent(modifiable, new HashSetIChangeListener()) should return
  the value component, which should be the new HashSetIChangeListener.
  Even if the key modifiable already exists, it should return the
  previously created HashSetIChangeListener.
 
  I'm confused that listener is coming back null.
 
  Daniel
 
  On Tue, Feb 7, 2012 at 9:21 AM, Daniel Watrous daniel.watr...@gmail.com
 wrote:
  That helped. I'm getting really close.
 
  I'm now getting a null pointer exception in this function
 
         public boolean add(IModifiable modifiable, IChangeListener
 listener) {
                 // TODO Auto-generated method stub
                 checkResources();
                 SetIChangeListener listeners =
 listenersMap.putIfAbsent(modifiable,
                                 new HashSetIChangeListener());
                 return listeners.add(listener);
         }
 
  listeners is null.
 
  I noticed that start(Duration pollFrequency) in GaeModificationWatcher
  was never getting called, so I updated my WicketApplication to set it
  like this:
 
                 IModificationWatcher watcher = new
 GaeModificationWatcher();
                 watcher.start(Duration.ONE_SECOND);
                 getResourceSettings().setResourceWatcher(watcher);
 
  But that didn't help my problem. I'm still trying to follow
 
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
 
  Any pointers?
 
  Thanks,
  Daniel
 
  On Tue, Feb 7, 2012 at 8:42 AM, Martin Grigorov mgrigo...@apache.org
 wrote:
  Try with java.util.Map.Entry
 
  On Tue, Feb 7, 2012 at 5:39 PM, Daniel Watrous 
 daniel.watr...@gmail.com wrote:
  I've now created a class MyRequestCycleListener extends
  AbstractRequestCycleListener.
 
  I'm having a little trouble building  class GaeModificationWatcher
  implements IModificationWatcher. I've tried following this example:
 
 http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
 
  to create the public void checkResources() function, but I'm not sure
  what Entry class to import. I have tried importing these two Entry
  classes:
  org.apache.wicket.util.collections.IntHashMap.Entry
  import
 com.google.appengine.repackaged.com.google.common.collect.Multiset.Entry
 
  It seems no matter which Entry class I import I get errors like:
 
  Multiple markers at this line
         - Entry cannot be resolved to a type
         - The constructor
 
 HashSetEntryIModifiable,SetIChangeListener(SetMap.EntryIModifiable,SetIChangeListener)
  is
          undefined
         - Incorrect number of arguments for type IntHashMap.Entry; it
 cannot
  be parameterized with arguments IModifiable,
          SetIChangeListener
 
  Thanks for any pointers.
 
  Daniel
 
 
  On Tue, Feb 7, 2012 at 7:07 AM, Martin Grigorov mgrigo...@apache.org
 wrote:
  On Tue, Feb 7, 2012 at 3:53 PM, Daniel Watrous 
 daniel.watr...@gmail.com wrote:
  Thanks Martin,
 
  I did make that much progress yesterday after sending this, but I
  can't figure out how to get the Application inside the
 onBeginRequest
  method that I override. In the other examples they call
  getApplication()
 
     @Override
     protected void onBeginRequest() {
         if
 (getApplication().getConfigurationType().equals(Application.DEVELOPMENT))
  {
             final GaeModificationWatcher resourceWatcher =
  (GaeModificationWatcher) getApplication()
                     .getResourceSettings().getResourceWatcher(true);
             resourceWatcher.checkResources

MulitFileUploadField looses state after validation error

[Daniel Meier]

Hi everyone

Little advice needed: I have a Form with several TextField's and a
MultiFileUploadField. If you select some files to upload and enter some
text in the TextFields - after the submit everything is fine.
Now if in case some TextField fire a validation error and the page is
rendered again, you have to select the files to upload one more time. Is
there any possibility to keep the state as long as validation errors occur?
Btw same problem wit FileUploadField.

Using wicket 1.5.3.

thx

Reload html in Wicket + GAE

[Daniel Watrous]

Hi,

I'm following up on a previous thread that's still unresolved. I would
like GAE to automatically reload my HTML when I save changes. Classes
are reloaded when I save (compile) them, but I have to restart each
time for HTML changes.

There are some old articles that show how to do this, but they deal
with older versions of Wicket and GAE. For example:
http://agilewombat.blogspot.com/2010/01/wicket-on-google-app-engine.html
http://apache-wicket.1842946.n4.nabble.com/How-can-I-reload-HTML-in-app-engine-td3005241.html
http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/ui/wicket/GAEModificationWatcher.java

Those suggest creating a class MyWebRequestCycle extends
WebRequestCycle, but wicket 1.5 doesn't have WebRequestCycle.

How can I accomplish this same thing in the current version of wicket?

Daniel

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Re: AJAX Rating extension, multiple on a page

[Daniel Watrous]

It turned out to be easier than I thought (must not have been thinking
in the wicket way).

Here's what I do (notice that inside populateItem I have access to
movieItem, which I can use to getModelObject()):

// Add movieListView of existing movies
moviesForm.add(new PropertyListViewMovie(movies, movieList) {

@Override
public void populateItem(final ListItemMovie movieItem) {
final RatingModel rating = new
RatingModel(movieItem.getModelObject().getRating());
movieItem.add(new
TextFieldString(name).setType(String.class));
movieItem.add(new DropDownChoiceCategory(category,
Arrays.asList(Category.values()), new
EnumChoiceRendererCategory(this)));
movieItem.add(new RatingPanel (rating, new
PropertyModelInteger(rating, rating), 5, new
PropertyModelInteger(rating, numberOfVotes), false) {
@Override
public boolean onIsStarActive(int star) {
return rating.isActive(star);
}
@Override
public void onRated(int newRating,
AjaxRequestTarget target) {
movieItem.getModelObject().setRating(newRating);
rating.updateRating(newRating);

Session session =
HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.update(movieItem.getModelObject());
session.getTransaction().commit();

movieList.detach();
}
});
movieItem.add(new Link(removeLink) {
@Override
public void onClick() {
System.out.print(movieItem.getModelObject().getId());
Session session =
HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.delete(movieItem.getModelObject());
session.getTransaction().commit();
movieList.detach();
}
});
}
}).setVersioned(false);

Daniel

On Sun, Jan 22, 2012 at 12:46 PM, armhold armh...@gmail.com wrote:
 Just to be clear in case it wasn't obvious- thingBeingRated will be
 serialized with the rest of your page if you take this approach. If it's not
 serializable, use a reference (like a database ID) to look it up when
 needed, instead of marking the object itself as final.


 --
 View this message in context: 
 http://apache-wicket.1842946.n4.nabble.com/AJAX-Rating-extension-multiple-on-a-page-tp4317346p4318956.html
 Sent from the Users forum mailing list archive at Nabble.com.

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form processing for multiple objects

[Daniel Watrous]

I have populated a form with values representing several different
objects. This is what my markup looks like:


form wicket:id = moviesForm id = moviesForm
span wicket:id = movies id = movies
a wicket:id = removeLink(remove)/a
input type=text wicket:id=name class=nospam/
select wicket:id=category/
span wicket:id=ratingrating/span
br /
/span
input type = submit value = Update Movies id=formsubmit/
/form

The span is reproduced for each object that I pull from a database.
There is a different identifier for each span, as you can see here:
http://screencast.com/t/l8pLGZnJVn8

I want to be able to access these objects when I click submit the
form, but I'm not sure how to get access to them. This is what I have
tried so far:


Form moviesForm = new FormValueMap(moviesForm) {
/**
 * Show the resulting valid new movie
 */
@Override
public final void onSubmit() {
ValueMap values = getModelObject();

// perform validation and security here
if (StringUtils.isBlank((String) values.get(name))) {
error(Received bad input!!!);
return;
}

Session session =
HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();

Movie movie = new Movie();
movie.setName((String) values.get(name));
movie.setCategory((Category) values.get(category));
session.save(movie);
session.getTransaction().commit();
}

};

The ValueMap values comes back null from getModelObject(). Any
pointers for me to get these objects back in a way that I can easily
update them?

Thanks.

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Re: form processing for multiple objects

[Daniel Watrous]

Let me give a little more detail. The way that markup is managed is
through this:

// Add movieListView of existing movies
moviesForm.add(new PropertyListViewMovie(movies, movieList) {

@Override
public void populateItem(final ListItemMovie movieItem) {
final RatingModel rating = new
RatingModel(movieItem.getModelObject().getRating());
movieItem.add(new
TextFieldString(name).setType(String.class));
movieItem.add(new DropDownChoiceCategory(category,
Arrays.asList(Category.values()), new
EnumChoiceRendererCategory(this)));
movieItem.add(new RatingPanel (rating, new
PropertyModelInteger(rating, rating), 5, new
PropertyModelInteger(rating, numberOfVotes), false) {
@Override
public boolean onIsStarActive(int star) {
return rating.isActive(star);
}
@Override
public void onRated(int newRating,
AjaxRequestTarget target) {
movieItem.getModelObject().setRating(newRating);
rating.updateRating(newRating);

Session session =
HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.update(movieItem.getModelObject());
session.getTransaction().commit();

movieList.detach();
}
});
movieItem.add(new Link(removeLink) {
@Override
public void onClick() {
System.out.print(movieItem.getModelObject().getId());
Session session =
HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.delete(movieItem.getModelObject());
session.getTransaction().commit();
movieList.detach();
}
});
}
}).setVersioned(false);

I suppose that means that I'm not actually adding new items to the
list as a form. Maybe what I need is to treat the entire component as
a form from the beginning. I'm just not sure exactly how to do that.

Any ideas?

Daniel

On Mon, Jan 23, 2012 at 9:07 AM, Daniel Watrous
daniel.watr...@gmail.com wrote:
 I have populated a form with values representing several different
 objects. This is what my markup looks like:


            form wicket:id = moviesForm id = moviesForm
                span wicket:id = movies id = movies
                    a wicket:id = removeLink(remove)/a
                    input type=text wicket:id=name class=nospam/
                    select wicket:id=category/
                    span wicket:id=ratingrating/span
                    br /
                /span
                input type = submit value = Update Movies 
 id=formsubmit/
            /form

 The span is reproduced for each object that I pull from a database.
 There is a different identifier for each span, as you can see here:
 http://screencast.com/t/l8pLGZnJVn8

 I want to be able to access these objects when I click submit the
 form, but I'm not sure how to get access to them. This is what I have
 tried so far:


        Form moviesForm = new FormValueMap(moviesForm) {
            /**
             * Show the resulting valid new movie
             */
            @Override
            public final void onSubmit() {
                ValueMap values = getModelObject();

                // perform validation and security here
                if (StringUtils.isBlank((String) values.get(name))) {
                    error(Received bad input!!!);
                    return;
                }

                Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
                session.beginTransaction();

                Movie movie = new Movie();
                movie.setName((String) values.get(name));
                movie.setCategory((Category) values.get(category));
                session.save(movie);
                session.getTransaction().commit();
            }

        };

 The ValueMap values comes back null from getModelObject(). Any
 pointers for me to get these objects back in a way that I can easily
 update them?

 Thanks.

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Re: form processing for multiple objects

[Daniel Watrous]

Note that I can access the objects that I populate using a
PropertyListView individually just fine.

What I am trying to do now is access them as part of a larger form so
that I can update multiple items at once. I was hoping to be able to
iterate through the items that the PropertyListView had rendered so
that I can update them one by one. That's where I'm failing. That Form
and onSubmit are defined outside of the PropertyListView.

I'm sorry if I'm not explaining this very well.

Daniel

On Mon, Jan 23, 2012 at 9:27 AM, Daniel Watrous
daniel.watr...@gmail.com wrote:
 The problem is that I can't seem to access the form submitted values
 in onSubmit().

 ValueMap values = getModelObject();

 values is null...

 Daniel

 On Mon, Jan 23, 2012 at 9:24 AM, Sven Meier s...@meiers.net wrote:
 So you're already using PropertyListView, fine.

 What's your problem once again?

 Sven


 Am 23.01.2012 17:20, schrieb Daniel Watrous:

 Let me give a little more detail. The way that markup is managed is
 through this:

         // Add movieListView of existing movies
         moviesForm.add(new PropertyListViewMovie(movies, movieList) {

             @Override
             public void populateItem(final ListItemMovie  movieItem) {
                 final RatingModel rating = new
 RatingModel(movieItem.getModelObject().getRating());
                 movieItem.add(new
 TextFieldString(name).setType(String.class));
                 movieItem.add(new DropDownChoiceCategory(category,
 Arrays.asList(Category.values()), new
 EnumChoiceRendererCategory(this)));
                 movieItem.add(new RatingPanel (rating, new
 PropertyModelInteger(rating, rating), 5, new
 PropertyModelInteger(rating, numberOfVotes), false) {
                     @Override
                     public boolean onIsStarActive(int star) {
                         return rating.isActive(star);
                     }
                     @Override
                     public void onRated(int newRating,
 AjaxRequestTarget target) {
                         movieItem.getModelObject().setRating(newRating);
                         rating.updateRating(newRating);

                         Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
                         session.beginTransaction();
                         session.update(movieItem.getModelObject());
                         session.getTransaction().commit();

                         movieList.detach();
                     }
                 });
                 movieItem.add(new Link(removeLink) {
                     @Override
                     public void onClick() {

 System.out.print(movieItem.getModelObject().getId());
                         Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
                         session.beginTransaction();
                         session.delete(movieItem.getModelObject());
                         session.getTransaction().commit();
                         movieList.detach();
                     }
                 });
             }
         }).setVersioned(false);

 I suppose that means that I'm not actually adding new items to the
 list as a form. Maybe what I need is to treat the entire component as
 a form from the beginning. I'm just not sure exactly how to do that.

 Any ideas?

 Daniel

 On Mon, Jan 23, 2012 at 9:07 AM, Daniel Watrous
 daniel.watr...@gmail.com  wrote:

 I have populated a form with values representing several different
 objects. This is what my markup looks like:


            form wicket:id = moviesForm id = moviesForm
                span wicket:id = movies id = movies
                    a wicket:id = removeLink(remove)/a
                    input type=text wicket:id=name class=nospam/
                    select wicket:id=category/
                    span wicket:id=ratingrating/span
                    br /
                /span
                input type = submit value = Update Movies
 id=formsubmit/
            /form

 The span is reproduced for each object that I pull from a database.
 There is a different identifier for each span, as you can see here:
 http://screencast.com/t/l8pLGZnJVn8

 I want to be able to access these objects when I click submit the
 form, but I'm not sure how to get access to them. This is what I have
 tried so far:


        Form moviesForm = new FormValueMap(moviesForm) {
            /**
             * Show the resulting valid new movie
             */
            @Override
            public final void onSubmit() {
                ValueMap values = getModelObject();

                // perform validation and security here
                if (StringUtils.isBlank((String) values.get(name))) {
                    error(Received bad input!!!);
                    return;
                }

                Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
                session.beginTransaction();

                Movie movie

Re: form processing for multiple objects

[Daniel Watrous]

Here's a little more code. You can see that I add the PropertyListView
to moviesForm...My listView (movieList) is a LoadableDetachableModel,
so it doesn't have the getModelObject() method. I'm still not quite
sure how to get access to the form details in onSubmit().

Form moviesForm = new FormValueMap(moviesForm) {
/**
 * Show the resulting valid new movie
 */
@Override
public final void onSubmit() {
Session session =
HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();

for (Movie movie : movieList.getModelObject()) {
session.save(movie);
}
session.getTransaction().commit();
}

};

// Add movieListView of existing movies
moviesForm.add(new PropertyListViewMovie(movies, movieList) {

@Override
public void populateItem(final ListItemMovie movieItem) {
final RatingModel rating = new
RatingModel(movieItem.getModelObject().getRating());
movieItem.add(new
TextFieldString(name).setType(String.class));
movieItem.add(new DropDownChoiceCategory(category,
Arrays.asList(Category.values()), new
EnumChoiceRendererCategory(this)));
movieItem.add(new RatingPanel (rating, new
PropertyModelInteger(rating, rating), 5, new
PropertyModelInteger(rating, numberOfVotes), false) {
@Override
public boolean onIsStarActive(int star) {
return rating.isActive(star);
}
@Override
public void onRated(int newRating,
AjaxRequestTarget target) {
movieItem.getModelObject().setRating(newRating);
rating.updateRating(newRating);

Session session =
HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.update(movieItem.getModelObject());
session.getTransaction().commit();

movieList.detach();
}
});
movieItem.add(new Link(removeLink) {
@Override
public void onClick() {
Session session =
HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.delete(movieItem.getModelObject());
session.getTransaction().commit();

movieList.detach();
}
});
}
}).setVersioned(false);

add(moviesForm);





On Mon, Jan 23, 2012 at 9:33 AM, Sven Meier s...@meiers.net wrote:
 Do you have the ValueMap usage from a Wicket example (e.g. Guestbook)?
 You don't seem to have any code that wires a ValueMap into your form.

 The following should be enough:


           @Override
           public final void onSubmit() {

               Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
               session.beginTransaction();

               for (Movie movie : listView.getModelObject()) {
                   session.save(movie);
               }
               session.getTransaction().commit();
           }

 Hope this helps
 Sven


 Am 23.01.2012 17:27, schrieb Daniel Watrous:

 The problem is that I can't seem to access the form submitted values
 in onSubmit().

 ValueMap values = getModelObject();

 values is null...

 Daniel

 On Mon, Jan 23, 2012 at 9:24 AM, Sven Meiers...@meiers.net  wrote:

 So you're already using PropertyListView, fine.

 What's your problem once again?

 Sven


 Am 23.01.2012 17:20, schrieb Daniel Watrous:

 Let me give a little more detail. The way that markup is managed is
 through this:

         // Add movieListView of existing movies
         moviesForm.add(new PropertyListViewMovie(movies, movieList)
 {

             @Override
             public void populateItem(final ListItemMovie    movieItem)
 {
                 final RatingModel rating = new
 RatingModel(movieItem.getModelObject().getRating());
                 movieItem.add(new
 TextFieldString(name).setType(String.class));
                 movieItem.add(new DropDownChoiceCategory(category,
 Arrays.asList(Category.values()), new
 EnumChoiceRendererCategory(this)));
                 movieItem.add(new RatingPanel (rating, new
 PropertyModelInteger(rating, rating), 5, new
 PropertyModelInteger(rating, numberOfVotes), false) {
                     @Override
                     public boolean onIsStarActive(int star) {
                         return rating.isActive(star);
                     }
                     @Override
                     public void onRated(int newRating,
 AjaxRequestTarget target

Re: form processing for multiple objects

[Daniel Watrous]

I ended up with something similar (see also this post:
http://apache-wicket.1842946.n4.nabble.com/Add-new-items-to-a-list-within-a-form-by-ajaxlink-td2017446.html)

http://paste.pocoo.org/show/539351/

I created a class level variable that would hold my PropertyListView
which made it available to the my onSubmit() method in the form.

Thank you so much for your help.

Daniel

On Mon, Jan 23, 2012 at 10:20 AM, Sven Meier s...@meiers.net wrote:
 How about this:

  http://paste.pocoo.org/show/539346/

 Sven

 Am 23.01.2012 17:53, schrieb Daniel Watrous:

 Here's a little more code. You can see that I add the PropertyListView
 to moviesForm...My listView (movieList) is a LoadableDetachableModel,
 so it doesn't have the getModelObject() method. I'm still not quite
 sure how to get access to the form details in onSubmit().

         Form moviesForm = new FormValueMap(moviesForm) {
             /**
              * Show the resulting valid new movie
              */
             @Override
             public final void onSubmit() {
                 Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
                 session.beginTransaction();

                 for (Movie movie : movieList.getModelObject()) {
                     session.save(movie);
                 }
                 session.getTransaction().commit();
             }

         };

         // Add movieListView of existing movies
         moviesForm.add(new PropertyListViewMovie(movies, movieList) {

             @Override
             public void populateItem(final ListItemMovie  movieItem) {
                 final RatingModel rating = new
 RatingModel(movieItem.getModelObject().getRating());
                 movieItem.add(new
 TextFieldString(name).setType(String.class));
                 movieItem.add(new DropDownChoiceCategory(category,
 Arrays.asList(Category.values()), new
 EnumChoiceRendererCategory(this)));
                 movieItem.add(new RatingPanel (rating, new
 PropertyModelInteger(rating, rating), 5, new
 PropertyModelInteger(rating, numberOfVotes), false) {
                     @Override
                     public boolean onIsStarActive(int star) {
                         return rating.isActive(star);
                     }
                     @Override
                     public void onRated(int newRating,
 AjaxRequestTarget target) {
                         movieItem.getModelObject().setRating(newRating);
                         rating.updateRating(newRating);

                         Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
                         session.beginTransaction();
                         session.update(movieItem.getModelObject());
                         session.getTransaction().commit();

                         movieList.detach();
                     }
                 });
                 movieItem.add(new Link(removeLink) {
                     @Override
                     public void onClick() {
                         Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
                         session.beginTransaction();
                         session.delete(movieItem.getModelObject());
                         session.getTransaction().commit();

                         movieList.detach();
                     }
                 });
             }
         }).setVersioned(false);

         add(moviesForm);





 On Mon, Jan 23, 2012 at 9:33 AM, Sven Meiers...@meiers.net  wrote:

 Do you have the ValueMap usage from a Wicket example (e.g. Guestbook)?
 You don't seem to have any code that wires a ValueMap into your form.

 The following should be enough:


           @Override
           public final void onSubmit() {

               Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
               session.beginTransaction();

               for (Movie movie : listView.getModelObject()) {
                   session.save(movie);
               }
               session.getTransaction().commit();
           }

 Hope this helps
 Sven


 Am 23.01.2012 17:27, schrieb Daniel Watrous:

 The problem is that I can't seem to access the form submitted values
 in onSubmit().

 ValueMap values = getModelObject();

 values is null...

 Daniel

 On Mon, Jan 23, 2012 at 9:24 AM, Sven Meiers...@meiers.net    wrote:

 So you're already using PropertyListView, fine.

 What's your problem once again?

 Sven


 Am 23.01.2012 17:20, schrieb Daniel Watrous:

 Let me give a little more detail. The way that markup is managed is
 through this:

         // Add movieListView of existing movies
         moviesForm.add(new PropertyListViewMovie(movies,
 movieList)
 {

             @Override
             public void populateItem(final ListItemMovie
  movieItem)
 {
                 final RatingModel rating = new
 RatingModel(movieItem.getModelObject().getRating());
                 movieItem.add(new
 TextFieldString(name

Weekend in Wicket

[Daniel Watrous]

Hi,

I spent the weekend working on a pre-interview exercise. The outcome
was a wicket+hibernate app deployed on Amazon EC2. I'm sending it to
the list because I love finding small examples like this when I'm
trying to do something new with a technology like Wicket.

I hope it's helpful, and thanks for all your replies to my questions :)

http://software.danielwatrous.com/software-engineering/java-wicket-and-hibernate-on-ec2-pre-interview-project

Daniel

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Can't instantiate page using constructor

[Daniel Watrous]

When I build my wicket project I'm getting the following error

Tests in error:
  homepageRendersSuccessfully(com.danielwatrous.movieratings.TestHomePage):
Can't instantiate page using constructor 'public
com.danielwatrous.movieratings.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
and argument ''. Might be it doesn't exist, may be it is not visible
(public).

I can't see any errors in my code. I am trying to use Hibernate and if
I comment out the hibernate code then the page compiles fine. I don't
see how the hibernate code causes an error with the class. Here's my
code.

package com.danielwatrous.movieratings;

import org.hibernate.Session;

import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.WebPage;

import com.danielwatrous.movieratings.domain.*;
import com.danielwatrous.movieratings.util.HibernateUtil;

public class HomePage extends WebPage {
private static final long serialVersionUID = 1L;

public HomePage(final PageParameters parameters) {
add(new Label(version,
getApplication().getFrameworkSettings().getVersion()));
// TODO Add your page's components here

Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();

Movie movie = new Movie();
movie.setName(Ocean's Eleven);
movie.setCategory(Category.COMEDY);
movie.setRating(Rating.FOURSTARS);
session.save(movie);

session.getTransaction().commit();
}

}

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Re: Can't instantiate page using constructor

[Daniel Watrous]

That was the only error produced when running build. However, I tried
running the server (jetty:run) anyway and found it started and
provided a stack trace when I loaded the homepage. That helped me to
solve my problem.

I had errors outside of wicket, related to hibernate.

Thank you,
Daniel

On Sat, Jan 21, 2012 at 10:26 AM, Per Newgro per.new...@gmx.ch wrote:
 The stack trace is what?

 Am 21.01.2012 18:21, schrieb Daniel Watrous:

 When I build my wicket project I'm getting the following error

 Tests in error:

 homepageRendersSuccessfully(com.danielwatrous.movieratings.TestHomePage):
 Can't instantiate page using constructor 'public

 com.danielwatrous.movieratings.HomePage(org.apache.wicket.request.mapper.parameter.PageParameters)'
 and argument ''. Might be it doesn't exist, may be it is not visible
 (public).

 I can't see any errors in my code. I am trying to use Hibernate and if
 I comment out the hibernate code then the page compiles fine. I don't
 see how the hibernate code causes an error with the class. Here's my
 code.

 package com.danielwatrous.movieratings;

 import org.hibernate.Session;

 import org.apache.wicket.request.mapper.parameter.PageParameters;
 import org.apache.wicket.markup.html.basic.Label;
 import org.apache.wicket.markup.html.WebPage;

 import com.danielwatrous.movieratings.domain.*;
 import com.danielwatrous.movieratings.util.HibernateUtil;

 public class HomePage extends WebPage {
        private static final long serialVersionUID = 1L;

     public HomePage(final PageParameters parameters) {
                add(new Label(version,
 getApplication().getFrameworkSettings().getVersion()));
         // TODO Add your page's components here

         Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
         session.beginTransaction();

         Movie movie = new Movie();
         movie.setName(Ocean's Eleven);
         movie.setCategory(Category.COMEDY);
         movie.setRating(Rating.FOURSTARS);
         session.save(movie);

         session.getTransaction().commit();
     }

 }

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Re: What to add to pom.xml to use hibernate?

[Daniel Watrous]

Thank you. That link helped be get this working.

Daniel

On Sat, Jan 21, 2012 at 1:32 AM, Per Newgro per.new...@gmx.ch wrote:
 Hmm. Firstly you ask the wrong list. Hibernate is off topic.
 At second - did you do a search? With maven hibernate i
 found this link quickly:
 http://stackoverflow.com/questions/3345816/hibernate-projects-and-building-with-maven
 See the answer with the green check at the side. I think that will anser
 you question.
 You have to exhange the version numbers by 4.0.1...

 Cheers
 Per

 Am 21.01.2012 08:53, schrieb Daniel Watrous:

 I'm interested in using hibernate in my wicket application, but I
 can't find any up to date examples combining the two.

 Is there something other than hibernate that the wicket community uses for
 ORM?

 If not, what can I add to the pom.xml file to include hibernate. I
 tried adding this:

                dependency
                        groupIdorg.hibernate/groupId
                        artifactIdhibernate/artifactId
                        version4.0.1-Final/version
                /dependency

 but it doesn't work. I an error that it Could not resolve dependencies
 for project...

 I also attempted to add this alongside the other repository that is there.

         repository
             idjboss/id
             urlhttp://repository.jboss.org/maven2//url
         /repository

 I get the error about Could not resolve dependencies for project...
 but now many other jar files are not found.

 I started with the quickstart, if that helps.

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guestbook application with database update

[Daniel Watrous]

I'm creating a small app based on the guestbook:
http://www.wicket-library.com/wicket-examples/guestbook/?1

In the guestbook app, the page view is updated every time a new
comment is added. The variable commentList is initialized at the top
like this

private static final ListComment commentList = new ArrayListComment();

// Add commentListView of existing comments
add(new PropertyListViewComment(comments, commentList)
{
@Override
public void populateItem(final ListItemComment listItem)
{
listItem.add(new Label(date));
listItem.add(new MultiLineLabel(text));
}
}).setVersioned(false);

I wanted to use a database instead, so I made the following changes

private ListMovie movieList = new ArrayListMovie();

Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
movieList = session.createQuery(from Movie).list();
session.getTransaction().commit();

// Add commentListView of existing comments
add(new PropertyListViewMovie(movies, movieList) {

@Override
public void populateItem(final ListItemMovie listItem) {
listItem.add(new
TextFieldString(name).setType(String.class));
listItem.add(new DropDownChoiceCategory(category,
Arrays.asList(Category.values()), new
EnumChoiceRendererCategory(this)));
listItem.add(new Label(rating));
}
}).setVersioned(false);

With this change, all the items in the database come up when the page
first loads, but not after each new item is added to the database. I
have to clear out the URL and load the page fresh to see what has been
added since the last fresh load.

I did try resetting movieList in the onSubmit function to load the
current database items into the variable movieList, but that still
doesn't update the list.

Any idea how to update movieList after each new item is submitted.

Daniel

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Re: guestbook application with database update

[Daniel Watrous]

This worked GREAT! Thank you.

On Sat, Jan 21, 2012 at 2:51 PM, Sven Meier s...@meiers.net wrote:
 Use a LoadableDetachableModel to load a fresh list of movies on each
 request.

 Sven


 On 01/21/2012 10:35 PM, Daniel Watrous wrote:

 I'm creating a small app based on the guestbook:
 http://www.wicket-library.com/wicket-examples/guestbook/?1

 In the guestbook app, the page view is updated every time a new
 comment is added. The variable commentList is initialized at the top
 like this

 private static final ListComment  commentList = new
 ArrayListComment();

         // Add commentListView of existing comments
         add(new PropertyListViewComment(comments, commentList)
         {
             @Override
             public void populateItem(final ListItemComment  listItem)
             {
                 listItem.add(new Label(date));
                 listItem.add(new MultiLineLabel(text));
             }
         }).setVersioned(false);

 I wanted to use a database instead, so I made the following changes

 private ListMovie  movieList = new ArrayListMovie();

         Session session =
 HibernateUtil.getSessionFactory().getCurrentSession();
         session.beginTransaction();
         movieList = session.createQuery(from Movie).list();
         session.getTransaction().commit();

         // Add commentListView of existing comments
         add(new PropertyListViewMovie(movies, movieList) {

             @Override
             public void populateItem(final ListItemMovie  listItem) {
                 listItem.add(new
 TextFieldString(name).setType(String.class));
                 listItem.add(new DropDownChoiceCategory(category,
 Arrays.asList(Category.values()), new
 EnumChoiceRendererCategory(this)));
                 listItem.add(new Label(rating));
             }
         }).setVersioned(false);

 With this change, all the items in the database come up when the page
 first loads, but not after each new item is added to the database. I
 have to clear out the URL and load the page fresh to see what has been
 added since the last fresh load.

 I did try resetting movieList in the onSubmit function to load the
 current database items into the variable movieList, but that still
 doesn't update the list.

 Any idea how to update movieList after each new item is submitted.

 Daniel

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AJAX Rating extension, multiple on a page

[Daniel Watrous]

Hi,

I've been working with the Rating extension found here:
http://www.wicket-library.com/wicket-examples/ajax/ratings?0

I have a case where I need to render multiple on a page, and they
render fine. Each rating panel that displays corresponds to a specific
record in a database. I would like to be able to get information from
the request to indicate which record the rating is for.

The RatingPanel as a method onRated that accepts the rating and runs
an update, like this:

@Override
public void onRated(int rating, AjaxRequestTarget target) {
HomePage.rating.addRating(rating);
}

I also noticed that the URL contains some additional information

a href=?0-4.ILinkListener-movies-0-rating-rater-element-0-link
wicket:id=link id=linkbb onclick=var
wcall=wicketAjaxGet(#039;?0-4.IBehaviorListener.0-movies-0-rating-rater-element-0-link#039;,function()
{ }.bind(this),function() { }.bind(this), function() {return
Wicket.$(#039;linkbb#039;) != null;}.bind(this));return
!wcall;img wicket:id=star
src=wicket/resource/org.apache.wicket.extensions.rating.RatingPanel/star1-ver-1326919989539.gif//a

The number between ...movies-_-rating... (where the underscore is) is
different for each group.

Is there some direct way to access information about the URL or to
modify this extension to pass the record information along with it?

Thanks,
Daniel

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What to add to pom.xml to use hibernate?

[Daniel Watrous]

I'm interested in using hibernate in my wicket application, but I
can't find any up to date examples combining the two.

Is there something other than hibernate that the wicket community uses for ORM?

If not, what can I add to the pom.xml file to include hibernate. I
tried adding this:

dependency
groupIdorg.hibernate/groupId
artifactIdhibernate/artifactId
version4.0.1-Final/version
/dependency

but it doesn't work. I an error that it Could not resolve dependencies
for project...

I also attempted to add this alongside the other repository that is there.

repository
idjboss/id
urlhttp://repository.jboss.org/maven2//url
/repository

I get the error about Could not resolve dependencies for project...
but now many other jar files are not found.

I started with the quickstart, if that helps.

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does the breadcrumb extension support bookmarkable links?

[Daniel Watrous]

I've been working with the breadcrumb components in the extensions
library today. Now that I have it working the way I need it to, I
noticed that none of the links are bookmarkable. I wondered if it were
possible to use this feature and still have links be bookmarkable?

I did some searching and found only a handful of references to
creating bookmarkable pages instead of panels, but before I went too
far down that road I wanted to ask if it's possible and straight
forward.

Thanks,
Daniel

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Re: Wicket on Google App Engine

[Daniel Watrous]

Rahman,

From the error that you show in your link it appears that your
application can't find the WicketFilter class.

Are you sure that you copied the three wicket jar files (core, util,
request) to your WEB-INF/lib folder?

Daniel

On Fri, Jan 6, 2012 at 7:28 AM, Rahman USTA rahman.usta...@gmail.com wrote:
 i did Daniel's way, but when run the application,
 http://chopapp.com/#1gyxqdm6

 2012/1/6 Hielke Hoeve hielke.ho...@topicus.nl

 Hey Daniel,

 Glad to hear you got it working as well. I have some apps on google app
 engine  as well. Tried all the tutorials and 'useful' maven plugins but all
 just didn't do the trick for me.  I now use maven's resources plugin to
 copy the resources from the maven repository to the war/lib folder. Which
 allows me to update/add dependencies in the pom.xml, run maven and add the
 dependencies in eclipse manually.

 I have not found a maven plugin which just adds the google sdk as
 dependency for me so I don't have to mess around in eclipse everytime I run
 maven. Did you solve that?

 Hielke

 -Original Message-
 From: Daniel Watrous [mailto:daniel.watr...@gmail.com]
 Sent: donderdag 5 januari 2012 19:35
 To: users@wicket.apache.org
 Subject: Re: Wicket on Google App Engine

 Thanks for all your help. I've just posted the steps required to get
 current versions of wicket and gae to work together.


 http://software.danielwatrous.com/software-engineering/wordpress-plugin-licensing-wicket-on-google-app-engine

 Daniel

 On Thu, Jan 5, 2012 at 12:46 AM, Ernesto Reinaldo Barreiro 
 ernesto.reina...@jweekend.com wrote:
  I think the class to use is
 
  http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/
  ui/wicket/GAEModificationWatcher.java
 
 
 
  On Thu, Jan 5, 2012 at 8:31 AM, Ernesto Reinaldo Barreiro 
  ernesto.reina...@jweekend.com wrote:
 
  You could use a modified version of resource watcher that does not
  use threads and modify request cycle so that watcher is executed
  before each request cycle. I remember there was some blog somewhere
  explaining this technique... Maybe it was this...
 
 
  http://stronglytypedblog.blogspot.com/2009/07/wicket-spring-jdo-on-go
  ogle-app-engine.html
 
 
 
  On Wed, Jan 4, 2012 at 11:18 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:
 
  I tried putting in this:
  getResourceSettings().setResourcePollFrequency(Duration.ONE_SECOND);
 
  But the resource still doesn't update without restarting the google
  app engine environment. I just tried it by running Start and that no
  longer updates automatically either.
 
  In the process of trying to make it work with GAE, I changed the
  pom.xml to have these lines in the build section
             directorysrc/main/webapp/WEB-INF/directory
 
   outputDirectorysrc/main/webapp/WEB-INF/classes/outputDirectory
 
  That means files are no longer placed in the target directory, but
  in the WEB-INF folder. Could this affect it? Have I missed another
  setting somewhere that relates to changing where the compiled
  classes are placed?
 
  Daniel
 
  On Wed, Jan 4, 2012 at 3:01 PM, Sven Meier s...@meiers.net wrote:
   Read here:
  
      https://cwiki.apache.org/WICKET/faqs.html#FAQs-Deployment
  
   The relevant setting is:
      getResourceSettings().setResourcePollFrequency(duration);
  
   Sven
  
  
   On 01/04/2012 10:31 PM, Daniel Watrous wrote:
  
   Great. I now have it working with either the jar download or the
   dependency in the pom.xml file. In the dependency xml snippet I
   didn't realize that I needed to manually provide the version, but
   after I did then it worked fine.
  
   Whenever I update a class and save it in Eclipse, that class is
   updated in the running server and I don't have to restart to see
   the changes. This is great.
  
   However, when I change an HTML page, it's not updated in the
   running server, so I have to restart everything. I know that when
   I run a quickstart app directly (using the Start class) that
   updates to the HTML are updated without requiring a restart.
  
   Do you know how to make it so the HTML files are updated in the
   live server?
  
   Thanks so much.
  
   Daniel
  
   On Wed, Jan 4, 2012 at 1:38 PM, Sven Meiers...@meiers.net  wrote:
  
   With maven it's very easy, just add the dependency to your pom
   as suggested and forget about it.
  
   Alternatively you can download the jar form maven central
   manually and add it to your project:
  
  
  
  
  http://repo2.maven.org/maven2/org/wicketstuff/wicketstuff-gae-initia
  lizer/
  
   Hope this helps
   Sven
  
  
   On 01/04/2012 09:28 PM, Daniel Watrous wrote:
  
   I'm still not sure how to create the jar file. No one is
   commenting
  on
   it so I feel a bit silly. Should it be obvious?
  
   Am I supposed to include the source with my project or a jar.
   If a jar, how should I build the jar?
  
   On Wed, Jan 4, 2012 at 1:11 PM, Sven Meiers...@meiers.net
   wrote:
  
   Hi,
  
   make sure you have compatible versions for Wicket

Re: Wicket on Google App Engine

[Daniel Watrous]

Hielke,

I'm not very sophisticated when it comes to Maven. I think what I go
through in my tutorial is more of a brute force update of my eclipse
environment so that it works with the quickstart project on GAE. I'll
have a look at the resources approach you mentioned. That might
simplify setup of future projects.

Daniel

On Fri, Jan 6, 2012 at 3:39 AM, Hielke Hoeve hielke.ho...@topicus.nl wrote:
 Hey Daniel,

 Glad to hear you got it working as well. I have some apps on google app 
 engine  as well. Tried all the tutorials and 'useful' maven plugins but all 
 just didn't do the trick for me.  I now use maven's resources plugin to copy 
 the resources from the maven repository to the war/lib folder. Which allows 
 me to update/add dependencies in the pom.xml, run maven and add the 
 dependencies in eclipse manually.

 I have not found a maven plugin which just adds the google sdk as dependency 
 for me so I don't have to mess around in eclipse everytime I run maven. Did 
 you solve that?

 Hielke

 -Original Message-
 From: Daniel Watrous [mailto:daniel.watr...@gmail.com]
 Sent: donderdag 5 januari 2012 19:35
 To: users@wicket.apache.org
 Subject: Re: Wicket on Google App Engine

 Thanks for all your help. I've just posted the steps required to get current 
 versions of wicket and gae to work together.

 http://software.danielwatrous.com/software-engineering/wordpress-plugin-licensing-wicket-on-google-app-engine

 Daniel

 On Thu, Jan 5, 2012 at 12:46 AM, Ernesto Reinaldo Barreiro 
 ernesto.reina...@jweekend.com wrote:
 I think the class to use is

 http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/
 ui/wicket/GAEModificationWatcher.java



 On Thu, Jan 5, 2012 at 8:31 AM, Ernesto Reinaldo Barreiro 
 ernesto.reina...@jweekend.com wrote:

 You could use a modified version of resource watcher that does not
 use threads and modify request cycle so that watcher is executed
 before each request cycle. I remember there was some blog somewhere
 explaining this technique... Maybe it was this...


 http://stronglytypedblog.blogspot.com/2009/07/wicket-spring-jdo-on-go
 ogle-app-engine.html



 On Wed, Jan 4, 2012 at 11:18 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:

 I tried putting in this:
 getResourceSettings().setResourcePollFrequency(Duration.ONE_SECOND);

 But the resource still doesn't update without restarting the google
 app engine environment. I just tried it by running Start and that no
 longer updates automatically either.

 In the process of trying to make it work with GAE, I changed the
 pom.xml to have these lines in the build section
            directorysrc/main/webapp/WEB-INF/directory

  outputDirectorysrc/main/webapp/WEB-INF/classes/outputDirectory

 That means files are no longer placed in the target directory, but
 in the WEB-INF folder. Could this affect it? Have I missed another
 setting somewhere that relates to changing where the compiled
 classes are placed?

 Daniel

 On Wed, Jan 4, 2012 at 3:01 PM, Sven Meier s...@meiers.net wrote:
  Read here:
 
     https://cwiki.apache.org/WICKET/faqs.html#FAQs-Deployment
 
  The relevant setting is:
     getResourceSettings().setResourcePollFrequency(duration);
 
  Sven
 
 
  On 01/04/2012 10:31 PM, Daniel Watrous wrote:
 
  Great. I now have it working with either the jar download or the
  dependency in the pom.xml file. In the dependency xml snippet I
  didn't realize that I needed to manually provide the version, but
  after I did then it worked fine.
 
  Whenever I update a class and save it in Eclipse, that class is
  updated in the running server and I don't have to restart to see
  the changes. This is great.
 
  However, when I change an HTML page, it's not updated in the
  running server, so I have to restart everything. I know that when
  I run a quickstart app directly (using the Start class) that
  updates to the HTML are updated without requiring a restart.
 
  Do you know how to make it so the HTML files are updated in the
  live server?
 
  Thanks so much.
 
  Daniel
 
  On Wed, Jan 4, 2012 at 1:38 PM, Sven Meiers...@meiers.net  wrote:
 
  With maven it's very easy, just add the dependency to your pom
  as suggested and forget about it.
 
  Alternatively you can download the jar form maven central
  manually and add it to your project:
 
 
 
 
 http://repo2.maven.org/maven2/org/wicketstuff/wicketstuff-gae-initia
 lizer/
 
  Hope this helps
  Sven
 
 
  On 01/04/2012 09:28 PM, Daniel Watrous wrote:
 
  I'm still not sure how to create the jar file. No one is
  commenting
 on
  it so I feel a bit silly. Should it be obvious?
 
  Am I supposed to include the source with my project or a jar.
  If a jar, how should I build the jar?
 
  On Wed, Jan 4, 2012 at 1:11 PM, Sven Meiers...@meiers.net
  wrote:
 
  Hi,
 
  make sure you have compatible versions for Wicket and
 gae-initializer,
  i.e.
  they should be the same.
 
  Sven
 
 
 
  On 01/04/2012 08:49 PM, Daniel Watrous wrote:
 
  I'm slowly making

Re: Wicket on Google App Engine

[Daniel Watrous]

This time I think you didn't include the gae-initializer jar in your
WEB-INF/lib directory.

On Fri, Jan 6, 2012 at 8:50 AM, Rahman USTA rahman.usta...@gmail.com wrote:
 i handled them, but now server is giving me internal error,
 http://chopapp.com/#8lc105ni

 2012/1/6 Daniel Watrous daniel.watr...@gmail.com

 Rahman,

 From the error that you show in your link it appears that your
 application can't find the WicketFilter class.

 Are you sure that you copied the three wicket jar files (core, util,
 request) to your WEB-INF/lib folder?

 Daniel

 On Fri, Jan 6, 2012 at 7:28 AM, Rahman USTA rahman.usta...@gmail.com
 wrote:
  i did Daniel's way, but when run the application,
  http://chopapp.com/#1gyxqdm6
 
  2012/1/6 Hielke Hoeve hielke.ho...@topicus.nl
 
  Hey Daniel,
 
  Glad to hear you got it working as well. I have some apps on google app
  engine  as well. Tried all the tutorials and 'useful' maven plugins but
 all
  just didn't do the trick for me.  I now use maven's resources plugin to
  copy the resources from the maven repository to the war/lib folder.
 Which
  allows me to update/add dependencies in the pom.xml, run maven and add
 the
  dependencies in eclipse manually.
 
  I have not found a maven plugin which just adds the google sdk as
  dependency for me so I don't have to mess around in eclipse everytime I
 run
  maven. Did you solve that?
 
  Hielke
 
  -Original Message-
  From: Daniel Watrous [mailto:daniel.watr...@gmail.com]
  Sent: donderdag 5 januari 2012 19:35
  To: users@wicket.apache.org
  Subject: Re: Wicket on Google App Engine
 
  Thanks for all your help. I've just posted the steps required to get
  current versions of wicket and gae to work together.
 
 
 
 http://software.danielwatrous.com/software-engineering/wordpress-plugin-licensing-wicket-on-google-app-engine
 
  Daniel
 
  On Thu, Jan 5, 2012 at 12:46 AM, Ernesto Reinaldo Barreiro 
  ernesto.reina...@jweekend.com wrote:
   I think the class to use is
  
  
 http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/
   ui/wicket/GAEModificationWatcher.java
  
  
  
   On Thu, Jan 5, 2012 at 8:31 AM, Ernesto Reinaldo Barreiro 
   ernesto.reina...@jweekend.com wrote:
  
   You could use a modified version of resource watcher that does not
   use threads and modify request cycle so that watcher is executed
   before each request cycle. I remember there was some blog somewhere
   explaining this technique... Maybe it was this...
  
  
  
 http://stronglytypedblog.blogspot.com/2009/07/wicket-spring-jdo-on-go
   ogle-app-engine.html
  
  
  
   On Wed, Jan 4, 2012 at 11:18 PM, Daniel Watrous 
  daniel.watr...@gmail.comwrote:
  
   I tried putting in this:
   getResourceSettings().setResourcePollFrequency(Duration.ONE_SECOND);
  
   But the resource still doesn't update without restarting the google
   app engine environment. I just tried it by running Start and that no
   longer updates automatically either.
  
   In the process of trying to make it work with GAE, I changed the
   pom.xml to have these lines in the build section
              directorysrc/main/webapp/WEB-INF/directory
  
    outputDirectorysrc/main/webapp/WEB-INF/classes/outputDirectory
  
   That means files are no longer placed in the target directory, but
   in the WEB-INF folder. Could this affect it? Have I missed another
   setting somewhere that relates to changing where the compiled
   classes are placed?
  
   Daniel
  
   On Wed, Jan 4, 2012 at 3:01 PM, Sven Meier s...@meiers.net wrote:
Read here:
   
   https://cwiki.apache.org/WICKET/faqs.html#FAQs-Deployment
   
The relevant setting is:
   getResourceSettings().setResourcePollFrequency(duration);
   
Sven
   
   
On 01/04/2012 10:31 PM, Daniel Watrous wrote:
   
Great. I now have it working with either the jar download or the
dependency in the pom.xml file. In the dependency xml snippet I
didn't realize that I needed to manually provide the version, but
after I did then it worked fine.
   
Whenever I update a class and save it in Eclipse, that class is
updated in the running server and I don't have to restart to see
the changes. This is great.
   
However, when I change an HTML page, it's not updated in the
running server, so I have to restart everything. I know that when
I run a quickstart app directly (using the Start class) that
updates to the HTML are updated without requiring a restart.
   
Do you know how to make it so the HTML files are updated in the
live server?
   
Thanks so much.
   
Daniel
   
On Wed, Jan 4, 2012 at 1:38 PM, Sven Meiers...@meiers.net
  wrote:
   
With maven it's very easy, just add the dependency to your pom
as suggested and forget about it.
   
Alternatively you can download the jar form maven central
manually and add it to your project:
   
   
   
   
  
 http://repo2.maven.org/maven2/org/wicketstuff/wicketstuff-gae-initia
   lizer

Re: Wicket on Google App Engine

[Daniel Watrous]

You might be clever enough to do it in maven. I wasn't, so I added the
jar files like I show in my tutorial.

On Fri, Jan 6, 2012 at 8:55 AM, Rahman USTA rahman.usta...@gmail.com wrote:
 i did it in pom.xml, why must i add jars to lib manually? cant i do it with
 maven?

 2012/1/6 Daniel Watrous daniel.watr...@gmail.com

 This time I think you didn't include the gae-initializer jar in your
 WEB-INF/lib directory.

 On Fri, Jan 6, 2012 at 8:50 AM, Rahman USTA rahman.usta...@gmail.com
 wrote:
  i handled them, but now server is giving me internal error,
  http://chopapp.com/#8lc105ni
 
  2012/1/6 Daniel Watrous daniel.watr...@gmail.com
 
  Rahman,
 
  From the error that you show in your link it appears that your
  application can't find the WicketFilter class.
 
  Are you sure that you copied the three wicket jar files (core, util,
  request) to your WEB-INF/lib folder?
 
  Daniel
 
  On Fri, Jan 6, 2012 at 7:28 AM, Rahman USTA rahman.usta...@gmail.com
  wrote:
   i did Daniel's way, but when run the application,
   http://chopapp.com/#1gyxqdm6
  
   2012/1/6 Hielke Hoeve hielke.ho...@topicus.nl
  
   Hey Daniel,
  
   Glad to hear you got it working as well. I have some apps on google
 app
   engine  as well. Tried all the tutorials and 'useful' maven plugins
 but
  all
   just didn't do the trick for me.  I now use maven's resources plugin
 to
   copy the resources from the maven repository to the war/lib folder.
  Which
   allows me to update/add dependencies in the pom.xml, run maven and
 add
  the
   dependencies in eclipse manually.
  
   I have not found a maven plugin which just adds the google sdk as
   dependency for me so I don't have to mess around in eclipse
 everytime I
  run
   maven. Did you solve that?
  
   Hielke
  
   -Original Message-
   From: Daniel Watrous [mailto:daniel.watr...@gmail.com]
   Sent: donderdag 5 januari 2012 19:35
   To: users@wicket.apache.org
   Subject: Re: Wicket on Google App Engine
  
   Thanks for all your help. I've just posted the steps required to get
   current versions of wicket and gae to work together.
  
  
  
 
 http://software.danielwatrous.com/software-engineering/wordpress-plugin-licensing-wicket-on-google-app-engine
  
   Daniel
  
   On Thu, Jan 5, 2012 at 12:46 AM, Ernesto Reinaldo Barreiro 
   ernesto.reina...@jweekend.com wrote:
I think the class to use is
   
   
  http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/
ui/wicket/GAEModificationWatcher.java
   
   
   
On Thu, Jan 5, 2012 at 8:31 AM, Ernesto Reinaldo Barreiro 
ernesto.reina...@jweekend.com wrote:
   
You could use a modified version of resource watcher that does not
use threads and modify request cycle so that watcher is executed
before each request cycle. I remember there was some blog
 somewhere
explaining this technique... Maybe it was this...
   
   
   
  http://stronglytypedblog.blogspot.com/2009/07/wicket-spring-jdo-on-go
ogle-app-engine.html
   
   
   
On Wed, Jan 4, 2012 at 11:18 PM, Daniel Watrous 
   daniel.watr...@gmail.comwrote:
   
I tried putting in this:
   
 getResourceSettings().setResourcePollFrequency(Duration.ONE_SECOND);
   
But the resource still doesn't update without restarting the
 google
app engine environment. I just tried it by running Start and
 that no
longer updates automatically either.
   
In the process of trying to make it work with GAE, I changed the
pom.xml to have these lines in the build section
           directorysrc/main/webapp/WEB-INF/directory
   
   
  outputDirectorysrc/main/webapp/WEB-INF/classes/outputDirectory
   
That means files are no longer placed in the target directory,
 but
in the WEB-INF folder. Could this affect it? Have I missed
 another
setting somewhere that relates to changing where the compiled
classes are placed?
   
Daniel
   
On Wed, Jan 4, 2012 at 3:01 PM, Sven Meier s...@meiers.net
 wrote:
 Read here:

    https://cwiki.apache.org/WICKET/faqs.html#FAQs-Deployment

 The relevant setting is:
    getResourceSettings().setResourcePollFrequency(duration);

 Sven


 On 01/04/2012 10:31 PM, Daniel Watrous wrote:

 Great. I now have it working with either the jar download or
 the
 dependency in the pom.xml file. In the dependency xml snippet
 I
 didn't realize that I needed to manually provide the version,
 but
 after I did then it worked fine.

 Whenever I update a class and save it in Eclipse, that class
 is
 updated in the running server and I don't have to restart to
 see
 the changes. This is great.

 However, when I change an HTML page, it's not updated in the
 running server, so I have to restart everything. I know that
 when
 I run a quickstart app directly (using the Start class) that
 updates to the HTML are updated without requiring a restart.

 Do you know how to make it so the HTML

Re: Wicket on Google App Engine

[Daniel Watrous]

Rahman,

Are you following my tutorial or are you trying to adapt it to work
some other way.

I have to admit that I'm not very savvy when it comes to Maven and I
like the eclipse environment well enough. The Eclipse + GAE plugin
makes development easy.

Maybe I should be embarrassed to say that it took me three days to
finally get wicket going on GAE and the result of that is the tutorial
I put together. If you have something in mind other than what I
documented then I'm not going to be much help.

Daniel

On Fri, Jan 6, 2012 at 9:00 AM, Rahman USTA rahman.usta...@gmail.com wrote:
 Now, http://chopapp.com/#7pmdaqmd

 2012/1/6 Rahman USTA rahman.usta...@gmail.com

 i did it in pom.xml, why must i add jars to lib manually? cant i do it
 with maven?


 2012/1/6 Daniel Watrous daniel.watr...@gmail.com

 This time I think you didn't include the gae-initializer jar in your
 WEB-INF/lib directory.

 On Fri, Jan 6, 2012 at 8:50 AM, Rahman USTA rahman.usta...@gmail.com
 wrote:
  i handled them, but now server is giving me internal error,
  http://chopapp.com/#8lc105ni
 
  2012/1/6 Daniel Watrous daniel.watr...@gmail.com
 
  Rahman,
 
  From the error that you show in your link it appears that your
  application can't find the WicketFilter class.
 
  Are you sure that you copied the three wicket jar files (core, util,
  request) to your WEB-INF/lib folder?
 
  Daniel
 
  On Fri, Jan 6, 2012 at 7:28 AM, Rahman USTA rahman.usta...@gmail.com
  wrote:
   i did Daniel's way, but when run the application,
   http://chopapp.com/#1gyxqdm6
  
   2012/1/6 Hielke Hoeve hielke.ho...@topicus.nl
  
   Hey Daniel,
  
   Glad to hear you got it working as well. I have some apps on google
 app
   engine  as well. Tried all the tutorials and 'useful' maven plugins
 but
  all
   just didn't do the trick for me.  I now use maven's resources
 plugin to
   copy the resources from the maven repository to the war/lib folder.
  Which
   allows me to update/add dependencies in the pom.xml, run maven and
 add
  the
   dependencies in eclipse manually.
  
   I have not found a maven plugin which just adds the google sdk as
   dependency for me so I don't have to mess around in eclipse
 everytime I
  run
   maven. Did you solve that?
  
   Hielke
  
   -Original Message-
   From: Daniel Watrous [mailto:daniel.watr...@gmail.com]
   Sent: donderdag 5 januari 2012 19:35
   To: users@wicket.apache.org
   Subject: Re: Wicket on Google App Engine
  
   Thanks for all your help. I've just posted the steps required to get
   current versions of wicket and gae to work together.
  
  
  
 
 http://software.danielwatrous.com/software-engineering/wordpress-plugin-licensing-wicket-on-google-app-engine
  
   Daniel
  
   On Thu, Jan 5, 2012 at 12:46 AM, Ernesto Reinaldo Barreiro 
   ernesto.reina...@jweekend.com wrote:
I think the class to use is
   
   
  http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/
ui/wicket/GAEModificationWatcher.java
   
   
   
On Thu, Jan 5, 2012 at 8:31 AM, Ernesto Reinaldo Barreiro 
ernesto.reina...@jweekend.com wrote:
   
You could use a modified version of resource watcher that does
 not
use threads and modify request cycle so that watcher is executed
before each request cycle. I remember there was some blog
 somewhere
explaining this technique... Maybe it was this...
   
   
   
  http://stronglytypedblog.blogspot.com/2009/07/wicket-spring-jdo-on-go
ogle-app-engine.html
   
   
   
On Wed, Jan 4, 2012 at 11:18 PM, Daniel Watrous 
   daniel.watr...@gmail.comwrote:
   
I tried putting in this:
   
 getResourceSettings().setResourcePollFrequency(Duration.ONE_SECOND);
   
But the resource still doesn't update without restarting the
 google
app engine environment. I just tried it by running Start and
 that no
longer updates automatically either.
   
In the process of trying to make it work with GAE, I changed the
pom.xml to have these lines in the build section
           directorysrc/main/webapp/WEB-INF/directory
   
   
  outputDirectorysrc/main/webapp/WEB-INF/classes/outputDirectory
   
That means files are no longer placed in the target directory,
 but
in the WEB-INF folder. Could this affect it? Have I missed
 another
setting somewhere that relates to changing where the compiled
classes are placed?
   
Daniel
   
On Wed, Jan 4, 2012 at 3:01 PM, Sven Meier s...@meiers.net
 wrote:
 Read here:

    https://cwiki.apache.org/WICKET/faqs.html#FAQs-Deployment

 The relevant setting is:
    getResourceSettings().setResourcePollFrequency(duration);

 Sven


 On 01/04/2012 10:31 PM, Daniel Watrous wrote:

 Great. I now have it working with either the jar download or
 the
 dependency in the pom.xml file. In the dependency xml
 snippet I
 didn't realize that I needed to manually provide the
 version, but
 after I did then it worked fine

Re: Wicket on Google App Engine

[Daniel Watrous]

Thanks for all your help. I've just posted the steps required to get
current versions of wicket and gae to work together.

http://software.danielwatrous.com/software-engineering/wordpress-plugin-licensing-wicket-on-google-app-engine

Daniel

On Thu, Jan 5, 2012 at 12:46 AM, Ernesto Reinaldo Barreiro
ernesto.reina...@jweekend.com wrote:
 I think the class to use is

 http://code.google.com/p/kickat26/source/browse/trunk/src/de/kickat26/ui/wicket/GAEModificationWatcher.java



 On Thu, Jan 5, 2012 at 8:31 AM, Ernesto Reinaldo Barreiro 
 ernesto.reina...@jweekend.com wrote:

 You could use a modified version of resource watcher that does not use
 threads and modify request cycle so that watcher is executed before each
 request cycle. I remember there was some blog somewhere explaining this
 technique... Maybe it was this...


 http://stronglytypedblog.blogspot.com/2009/07/wicket-spring-jdo-on-google-app-engine.html



 On Wed, Jan 4, 2012 at 11:18 PM, Daniel Watrous 
 daniel.watr...@gmail.comwrote:

 I tried putting in this:
 getResourceSettings().setResourcePollFrequency(Duration.ONE_SECOND);

 But the resource still doesn't update without restarting the google
 app engine environment. I just tried it by running Start and that no
 longer updates automatically either.

 In the process of trying to make it work with GAE, I changed the
 pom.xml to have these lines in the build section
            directorysrc/main/webapp/WEB-INF/directory

  outputDirectorysrc/main/webapp/WEB-INF/classes/outputDirectory

 That means files are no longer placed in the target directory, but in
 the WEB-INF folder. Could this affect it? Have I missed another
 setting somewhere that relates to changing where the compiled classes
 are placed?

 Daniel

 On Wed, Jan 4, 2012 at 3:01 PM, Sven Meier s...@meiers.net wrote:
  Read here:
 
     https://cwiki.apache.org/WICKET/faqs.html#FAQs-Deployment
 
  The relevant setting is:
     getResourceSettings().setResourcePollFrequency(duration);
 
  Sven
 
 
  On 01/04/2012 10:31 PM, Daniel Watrous wrote:
 
  Great. I now have it working with either the jar download or the
  dependency in the pom.xml file. In the dependency xml snippet I didn't
  realize that I needed to manually provide the version, but after I did
  then it worked fine.
 
  Whenever I update a class and save it in Eclipse, that class is
  updated in the running server and I don't have to restart to see the
  changes. This is great.
 
  However, when I change an HTML page, it's not updated in the running
  server, so I have to restart everything. I know that when I run a
  quickstart app directly (using the Start class) that updates to the
  HTML are updated without requiring a restart.
 
  Do you know how to make it so the HTML files are updated in the live
  server?
 
  Thanks so much.
 
  Daniel
 
  On Wed, Jan 4, 2012 at 1:38 PM, Sven Meiers...@meiers.net  wrote:
 
  With maven it's very easy, just add the dependency to your pom as
  suggested
  and forget about it.
 
  Alternatively you can download the jar form maven central manually and
  add
  it to your project:
 
 
 
 
 http://repo2.maven.org/maven2/org/wicketstuff/wicketstuff-gae-initializer/
 
  Hope this helps
  Sven
 
 
  On 01/04/2012 09:28 PM, Daniel Watrous wrote:
 
  I'm still not sure how to create the jar file. No one is commenting
 on
  it so I feel a bit silly. Should it be obvious?
 
  Am I supposed to include the source with my project or a jar. If a
  jar, how should I build the jar?
 
  On Wed, Jan 4, 2012 at 1:11 PM, Sven Meiers...@meiers.net
  wrote:
 
  Hi,
 
  make sure you have compatible versions for Wicket and
 gae-initializer,
  i.e.
  they should be the same.
 
  Sven
 
 
 
  On 01/04/2012 08:49 PM, Daniel Watrous wrote:
 
  I'm slowly making progress.
 
  I see now that what Sven replied with goes in the pom.xml.
 
  What I'm not sure of is if I still need a jar file or the source as
  part of my project. I have made the update to my pom.xml, and I'm
 now
  getting this error when I attempt to run my application:
 
  java.lang.NoClassDefFoundError:
  org/apache/wicket/pageStore/memory/IDataStoreEvictionStrategy
         at java.lang.Class.getDeclaredConstructors0(Native Method)
         at java.lang.Class.privateGetDeclaredConstructors(Unknown
  Source)
         at java.lang.Class.getConstructor0(Unknown Source)
         at java.lang.Class.getDeclaredConstructor(Unknown Source)
         at
 
 
 
 com.google.appengine.tools.development.agent.runtime.Runtime$2.run(Runtime.java:133)
         at
 
 
 
 com.google.appengine.tools.development.agent.runtime.Runtime$2.run(Runtime.java:131)
         at java.security.AccessController.doPrivileged(Native
 Method)
         at
 
 
 
 com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:130)
         at
 
 
 
 org.apache.wicket.util.lang.WicketObjects.newInstance(WicketObjects.java:377)
         at
  org.apache.wicket.Application.addInitializer(Application.java:577

Re: Wicket on Google App Engine

[Daniel Watrous]

How do I create the gae-initializer.jar?

I have run mvn compile and generated the class files. I can zip those
up, but I'm not sure if there should be a META-INF folder and what it
should have.

Daniel

On Wed, Jan 4, 2012 at 12:21 AM, Martin Grigorov mgrigo...@apache.org wrote:
 Hi,

 gae-initializer project provides
 https://github.com/wicketstuff/core/blob/master/jdk-1.6-parent/gae-initializer-parent/gae-initializer/src/main/java/org/wicketstuff/gae/GaeInitializer.java
 which is an implementation of org.apache.wicket.IInitializer and declares it 
 in
 https://github.com/wicketstuff/core/blob/master/jdk-1.6-parent/gae-initializer-parent/gae-initializer/src/main/resources/wicket.properties.
 That means that when gae-initializer.jar is in the classpath Wicket
 will use it to initialize the Application instance.
 Check the source of GaeInitializer.jar to see what exactly it configures.

 On Wed, Jan 4, 2012 at 1:52 AM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 Hi,

 I've been working for a few days to get a wicket application going for
 Google App Engine with mixed results. I hope these questions aren't
 too noobie for this list?

 There are a couple of really old articles which Google brings up first:
 http://stronglytypedblog.blogspot.com/2009/04/wicket-on-google-app-engine.html
 http://www.danwalmsley.com/2009/04/08/apache-wicket-on-google-app-engine-for-java/

 I've also found this resource after digging through the wicket users
 list, but I can't figure out how I'm supposed to use it:
 https://github.com/wicketstuff/core/tree/master/jdk-1.6-parent/gae-initializer-parent

 I'm using eclipse with the GAE plugin.

 So far this is what I have accomplished.
 1) the first link above provides a download demo as an eclipse
 project. I can get this to run, but it's working with old versions
 (wicket 1.3.5, appengine sdk 1.2.0). I haven't successfully updated.
 2) I can create a new google app engine project in eclipse. It runs
 fine and I can develop servlets.
 3) I can user the maven build script from the quickstart to get a
 functional wicket project.

 I'm really struggling trying to figure out how to use the
 gae-initializer or a base GAE project from eclipse and end up with a
 functional wicket application...

 I'm not sure what other information to include at this point. Please
 share any pointers or links to other tutorials that might help me.

 Daniel

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org




 --
 Martin Grigorov
 jWeekend
 Training, Consulting, Development
 http://jWeekend.com

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org


-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org

Re: Wicket on Google App Engine

[Daniel Watrous]

Also, where do I put the wicket.properties file, and do I need to
update any xml files to indicate that there is a wicket.properties
file

On Wed, Jan 4, 2012 at 11:30 AM, Daniel Watrous
daniel.watr...@gmail.com wrote:
 How do I create the gae-initializer.jar?

 I have run mvn compile and generated the class files. I can zip those
 up, but I'm not sure if there should be a META-INF folder and what it
 should have.

 Daniel

 On Wed, Jan 4, 2012 at 12:21 AM, Martin Grigorov mgrigo...@apache.org wrote:
 Hi,

 gae-initializer project provides
 https://github.com/wicketstuff/core/blob/master/jdk-1.6-parent/gae-initializer-parent/gae-initializer/src/main/java/org/wicketstuff/gae/GaeInitializer.java
 which is an implementation of org.apache.wicket.IInitializer and declares it 
 in
 https://github.com/wicketstuff/core/blob/master/jdk-1.6-parent/gae-initializer-parent/gae-initializer/src/main/resources/wicket.properties.
 That means that when gae-initializer.jar is in the classpath Wicket
 will use it to initialize the Application instance.
 Check the source of GaeInitializer.jar to see what exactly it configures.

 On Wed, Jan 4, 2012 at 1:52 AM, Daniel Watrous daniel.watr...@gmail.com 
 wrote:
 Hi,

 I've been working for a few days to get a wicket application going for
 Google App Engine with mixed results. I hope these questions aren't
 too noobie for this list?

 There are a couple of really old articles which Google brings up first:
 http://stronglytypedblog.blogspot.com/2009/04/wicket-on-google-app-engine.html
 http://www.danwalmsley.com/2009/04/08/apache-wicket-on-google-app-engine-for-java/

 I've also found this resource after digging through the wicket users
 list, but I can't figure out how I'm supposed to use it:
 https://github.com/wicketstuff/core/tree/master/jdk-1.6-parent/gae-initializer-parent

 I'm using eclipse with the GAE plugin.

 So far this is what I have accomplished.
 1) the first link above provides a download demo as an eclipse
 project. I can get this to run, but it's working with old versions
 (wicket 1.3.5, appengine sdk 1.2.0). I haven't successfully updated.
 2) I can create a new google app engine project in eclipse. It runs
 fine and I can develop servlets.
 3) I can user the maven build script from the quickstart to get a
 functional wicket project.

 I'm really struggling trying to figure out how to use the
 gae-initializer or a base GAE project from eclipse and end up with a
 functional wicket application...

 I'm not sure what other information to include at this point. Please
 share any pointers or links to other tutorials that might help me.

 Daniel

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org




 --
 Martin Grigorov
 jWeekend
 Training, Consulting, Development
 http://jWeekend.com

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org


-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org

Re: Wicket on Google App Engine

[Daniel Watrous]

Is that the same thing as adding the jar file to the build path in eclipse?

How do I build gae-initializer.jar? I tried running 'mvn jar', but it
gave an error about unknown lifecycle phase.

Daniel

On Wed, Jan 4, 2012 at 11:38 AM, Sven Meier s...@meiers.net wrote:
 Hi Daniel,

 you just have to add the gae-initializer as a dependency to your project:

 dependency
 groupIdorg.wicketstuff/groupId
 artifactIdwicketstuff-gae-initializer/artifactId
 version${wicket.version}/version
 /dependency

 That's all.
 Sven


 On 01/04/2012 07:35 PM, Daniel Watrous wrote:

 Also, where do I put the wicket.properties file, and do I need to
 update any xml files to indicate that there is a wicket.properties
 file

 On Wed, Jan 4, 2012 at 11:30 AM, Daniel Watrous
 daniel.watr...@gmail.com  wrote:

 How do I create the gae-initializer.jar?

 I have run mvn compile and generated the class files. I can zip those
 up, but I'm not sure if there should be a META-INF folder and what it
 should have.

 Daniel

 On Wed, Jan 4, 2012 at 12:21 AM, Martin Grigorovmgrigo...@apache.org
  wrote:

 Hi,

 gae-initializer project provides

 https://github.com/wicketstuff/core/blob/master/jdk-1.6-parent/gae-initializer-parent/gae-initializer/src/main/java/org/wicketstuff/gae/GaeInitializer.java
 which is an implementation of org.apache.wicket.IInitializer and
 declares it in

 https://github.com/wicketstuff/core/blob/master/jdk-1.6-parent/gae-initializer-parent/gae-initializer/src/main/resources/wicket.properties.
 That means that when gae-initializer.jar is in the classpath Wicket
 will use it to initialize the Application instance.
 Check the source of GaeInitializer.jar to see what exactly it
 configures.

 On Wed, Jan 4, 2012 at 1:52 AM, Daniel Watrousdaniel.watr...@gmail.com
  wrote:

 Hi,

 I've been working for a few days to get a wicket application going for
 Google App Engine with mixed results. I hope these questions aren't
 too noobie for this list?

 There are a couple of really old articles which Google brings up first:

 http://stronglytypedblog.blogspot.com/2009/04/wicket-on-google-app-engine.html

 http://www.danwalmsley.com/2009/04/08/apache-wicket-on-google-app-engine-for-java/

 I've also found this resource after digging through the wicket users
 list, but I can't figure out how I'm supposed to use it:

 https://github.com/wicketstuff/core/tree/master/jdk-1.6-parent/gae-initializer-parent

 I'm using eclipse with the GAE plugin.

 So far this is what I have accomplished.
 1) the first link above provides a download demo as an eclipse
 project. I can get this to run, but it's working with old versions
 (wicket 1.3.5, appengine sdk 1.2.0). I haven't successfully updated.
 2) I can create a new google app engine project in eclipse. It runs
 fine and I can develop servlets.
 3) I can user the maven build script from the quickstart to get a
 functional wicket project.

 I'm really struggling trying to figure out how to use the
 gae-initializer or a base GAE project from eclipse and end up with a
 functional wicket application...

 I'm not sure what other information to include at this point. Please
 share any pointers or links to other tutorials that might help me.

 Daniel

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 --
 Martin Grigorov
 jWeekend
 Training, Consulting, Development
 http://jWeekend.com

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Re: Wicket on Google App Engine

[Daniel Watrous]

I'm slowly making progress.

I see now that what Sven replied with goes in the pom.xml.

What I'm not sure of is if I still need a jar file or the source as
part of my project. I have made the update to my pom.xml, and I'm now
getting this error when I attempt to run my application:

java.lang.NoClassDefFoundError:
org/apache/wicket/pageStore/memory/IDataStoreEvictionStrategy
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.getDeclaredConstructor(Unknown Source)
at 
com.google.appengine.tools.development.agent.runtime.Runtime$2.run(Runtime.java:133)
at 
com.google.appengine.tools.development.agent.runtime.Runtime$2.run(Runtime.java:131)
at java.security.AccessController.doPrivileged(Native Method)
at 
com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:130)
at 
org.apache.wicket.util.lang.WicketObjects.newInstance(WicketObjects.java:377)
at org.apache.wicket.Application.addInitializer(Application.java:577)
at org.apache.wicket.Application.load(Application.java:615)
at 
org.apache.wicket.Application.initializeComponents(Application.java:501)
at org.apache.wicket.Application.initApplication(Application.java:808)
at 
org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:346)
at 
org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:286)
at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
at 
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at 
org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:662)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at 
org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at 
org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at 
org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
at 
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at 
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at 
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at 
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at 
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at 
com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:191)
at 
com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:239)
at 
com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:146)
at 
com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:164)
at 
com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at 
com.google.appengine.tools.development.DevAppServerMain.init(DevAppServerMain.java:113)
at 
com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:89)
Caused by: java.lang.ClassNotFoundException:
org.apache.wicket.pageStore.memory.IDataStoreEvictionStrategy
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at 
com.google.appengine.tools.development.IsolatedAppClassLoader.loadClass(IsolatedAppClassLoader.java:176)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 35 more

Since gae-initializer did compile when I compiled with maven I also
tried simply putting the compile classes next to my other classes for
the deployment, but it still gives this error.

Thanks for all your help.

Daniel

On Wed, Jan 4, 2012 at 11:45 AM, Daniel Watrous
daniel.watr...@gmail.com wrote:
 Is that the same thing as adding the jar file to the build path in eclipse?

 How do I build gae-initializer.jar? I tried running 'mvn jar', but it
 gave an error about unknown lifecycle phase.

 Daniel

 On Wed, Jan 4, 2012 at 11:38 AM, Sven Meier s...@meiers.net wrote:
 Hi Daniel,

 you just have to add the gae-initializer as a dependency to your project:

 dependency
 groupIdorg.wicketstuff/groupId
 artifactIdwicketstuff-gae-initializer/artifactId
 version${wicket.version}/version
 /dependency

 That's all.
 Sven


 On 01/04/2012 07:35 PM, Daniel Watrous wrote:

 Also, where do I put the wicket.properties file, and do I need to
 update any xml files to indicate that there is a wicket.properties
 file

 On Wed, Jan 4, 2012 at 11:30 AM

Re: Wicket on Google App Engine

[Daniel Watrous]

I'm still not sure how to create the jar file. No one is commenting on
it so I feel a bit silly. Should it be obvious?

Am I supposed to include the source with my project or a jar. If a
jar, how should I build the jar?

On Wed, Jan 4, 2012 at 1:11 PM, Sven Meier s...@meiers.net wrote:
 Hi,

 make sure you have compatible versions for Wicket and gae-initializer, i.e.
 they should be the same.

 Sven



 On 01/04/2012 08:49 PM, Daniel Watrous wrote:

 I'm slowly making progress.

 I see now that what Sven replied with goes in the pom.xml.

 What I'm not sure of is if I still need a jar file or the source as
 part of my project. I have made the update to my pom.xml, and I'm now
 getting this error when I attempt to run my application:

 java.lang.NoClassDefFoundError:
 org/apache/wicket/pageStore/memory/IDataStoreEvictionStrategy
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
        at java.lang.Class.getConstructor0(Unknown Source)
        at java.lang.Class.getDeclaredConstructor(Unknown Source)
        at
 com.google.appengine.tools.development.agent.runtime.Runtime$2.run(Runtime.java:133)
        at
 com.google.appengine.tools.development.agent.runtime.Runtime$2.run(Runtime.java:131)
        at java.security.AccessController.doPrivileged(Native Method)
        at
 com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:130)
        at
 org.apache.wicket.util.lang.WicketObjects.newInstance(WicketObjects.java:377)
        at
 org.apache.wicket.Application.addInitializer(Application.java:577)
        at org.apache.wicket.Application.load(Application.java:615)
        at
 org.apache.wicket.Application.initializeComponents(Application.java:501)
        at
 org.apache.wicket.Application.initApplication(Application.java:808)
        at
 org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:346)
        at
 org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:286)
        at
 org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
        at
 org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at
 org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:662)
        at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
        at
 org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
        at
 org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
        at
 org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
        at
 org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at
 org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
        at
 org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at
 org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
        at org.mortbay.jetty.Server.doStart(Server.java:224)
        at
 org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at
 com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:191)
        at
 com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:239)
        at
 com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:146)
        at
 com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:164)
        at
 com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
        at
 com.google.appengine.tools.development.DevAppServerMain.init(DevAppServerMain.java:113)
        at
 com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:89)
 Caused by: java.lang.ClassNotFoundException:
 org.apache.wicket.pageStore.memory.IDataStoreEvictionStrategy
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at
 com.google.appengine.tools.development.IsolatedAppClassLoader.loadClass(IsolatedAppClassLoader.java:176)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 35 more

 Since gae-initializer did compile when I compiled with maven I also
 tried simply putting the compile classes next to my other classes for
 the deployment, but it still gives this error.

 Thanks for all your help.

 Daniel

 On Wed, Jan 4, 2012 at 11:45 AM, Daniel Watrous
 daniel.watr...@gmail.com  wrote:

 Is that the same thing as adding the jar file to the build path in
 eclipse?

 How do I build gae-initializer.jar? I tried running 'mvn jar', but it
 gave an error about unknown lifecycle phase.

 Daniel

 On Wed, Jan 4, 2012 at 11:38 AM, Sven Meiers...@meiers.net  wrote

Re: Wicket on Google App Engine

[Daniel Watrous]

Great. I now have it working with either the jar download or the
dependency in the pom.xml file. In the dependency xml snippet I didn't
realize that I needed to manually provide the version, but after I did
then it worked fine.

Whenever I update a class and save it in Eclipse, that class is
updated in the running server and I don't have to restart to see the
changes. This is great.

However, when I change an HTML page, it's not updated in the running
server, so I have to restart everything. I know that when I run a
quickstart app directly (using the Start class) that updates to the
HTML are updated without requiring a restart.

Do you know how to make it so the HTML files are updated in the live server?

Thanks so much.

Daniel

On Wed, Jan 4, 2012 at 1:38 PM, Sven Meier s...@meiers.net wrote:
 With maven it's very easy, just add the dependency to your pom as suggested
 and forget about it.

 Alternatively you can download the jar form maven central manually and add
 it to your project:


  http://repo2.maven.org/maven2/org/wicketstuff/wicketstuff-gae-initializer/

 Hope this helps
 Sven


 On 01/04/2012 09:28 PM, Daniel Watrous wrote:

 I'm still not sure how to create the jar file. No one is commenting on
 it so I feel a bit silly. Should it be obvious?

 Am I supposed to include the source with my project or a jar. If a
 jar, how should I build the jar?

 On Wed, Jan 4, 2012 at 1:11 PM, Sven Meiers...@meiers.net  wrote:

 Hi,

 make sure you have compatible versions for Wicket and gae-initializer,
 i.e.
 they should be the same.

 Sven



 On 01/04/2012 08:49 PM, Daniel Watrous wrote:

 I'm slowly making progress.

 I see now that what Sven replied with goes in the pom.xml.

 What I'm not sure of is if I still need a jar file or the source as
 part of my project. I have made the update to my pom.xml, and I'm now
 getting this error when I attempt to run my application:

 java.lang.NoClassDefFoundError:
 org/apache/wicket/pageStore/memory/IDataStoreEvictionStrategy
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
        at java.lang.Class.getConstructor0(Unknown Source)
        at java.lang.Class.getDeclaredConstructor(Unknown Source)
        at

 com.google.appengine.tools.development.agent.runtime.Runtime$2.run(Runtime.java:133)
        at

 com.google.appengine.tools.development.agent.runtime.Runtime$2.run(Runtime.java:131)
        at java.security.AccessController.doPrivileged(Native Method)
        at

 com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:130)
        at

 org.apache.wicket.util.lang.WicketObjects.newInstance(WicketObjects.java:377)
        at
 org.apache.wicket.Application.addInitializer(Application.java:577)
        at org.apache.wicket.Application.load(Application.java:615)
        at
 org.apache.wicket.Application.initializeComponents(Application.java:501)
        at
 org.apache.wicket.Application.initApplication(Application.java:808)
        at
 org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:346)
        at
 org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:286)
        at
 org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
        at
 org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at

 org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:662)
        at
 org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
        at

 org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
        at

 org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
        at
 org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
        at
 org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at

 org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
        at
 org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at

 org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
        at org.mortbay.jetty.Server.doStart(Server.java:224)
        at
 org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at

 com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:191)
        at

 com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:239)
        at

 com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:146)
        at

 com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:164)
        at

 com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
        at

 com.google.appengine.tools.development.DevAppServerMain.init(DevAppServerMain.java:113

Re: Wicket on Google App Engine

[Daniel Watrous]

I tried putting in this:
getResourceSettings().setResourcePollFrequency(Duration.ONE_SECOND);

But the resource still doesn't update without restarting the google
app engine environment. I just tried it by running Start and that no
longer updates automatically either.

In the process of trying to make it work with GAE, I changed the
pom.xml to have these lines in the build section
directorysrc/main/webapp/WEB-INF/directory
outputDirectorysrc/main/webapp/WEB-INF/classes/outputDirectory

That means files are no longer placed in the target directory, but in
the WEB-INF folder. Could this affect it? Have I missed another
setting somewhere that relates to changing where the compiled classes
are placed?

Daniel

On Wed, Jan 4, 2012 at 3:01 PM, Sven Meier s...@meiers.net wrote:
 Read here:

    https://cwiki.apache.org/WICKET/faqs.html#FAQs-Deployment

 The relevant setting is:
    getResourceSettings().setResourcePollFrequency(duration);

 Sven


 On 01/04/2012 10:31 PM, Daniel Watrous wrote:

 Great. I now have it working with either the jar download or the
 dependency in the pom.xml file. In the dependency xml snippet I didn't
 realize that I needed to manually provide the version, but after I did
 then it worked fine.

 Whenever I update a class and save it in Eclipse, that class is
 updated in the running server and I don't have to restart to see the
 changes. This is great.

 However, when I change an HTML page, it's not updated in the running
 server, so I have to restart everything. I know that when I run a
 quickstart app directly (using the Start class) that updates to the
 HTML are updated without requiring a restart.

 Do you know how to make it so the HTML files are updated in the live
 server?

 Thanks so much.

 Daniel

 On Wed, Jan 4, 2012 at 1:38 PM, Sven Meiers...@meiers.net  wrote:

 With maven it's very easy, just add the dependency to your pom as
 suggested
 and forget about it.

 Alternatively you can download the jar form maven central manually and
 add
 it to your project:



  http://repo2.maven.org/maven2/org/wicketstuff/wicketstuff-gae-initializer/

 Hope this helps
 Sven


 On 01/04/2012 09:28 PM, Daniel Watrous wrote:

 I'm still not sure how to create the jar file. No one is commenting on
 it so I feel a bit silly. Should it be obvious?

 Am I supposed to include the source with my project or a jar. If a
 jar, how should I build the jar?

 On Wed, Jan 4, 2012 at 1:11 PM, Sven Meiers...@meiers.net    wrote:

 Hi,

 make sure you have compatible versions for Wicket and gae-initializer,
 i.e.
 they should be the same.

 Sven



 On 01/04/2012 08:49 PM, Daniel Watrous wrote:

 I'm slowly making progress.

 I see now that what Sven replied with goes in the pom.xml.

 What I'm not sure of is if I still need a jar file or the source as
 part of my project. I have made the update to my pom.xml, and I'm now
 getting this error when I attempt to run my application:

 java.lang.NoClassDefFoundError:
 org/apache/wicket/pageStore/memory/IDataStoreEvictionStrategy
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Unknown
 Source)
        at java.lang.Class.getConstructor0(Unknown Source)
        at java.lang.Class.getDeclaredConstructor(Unknown Source)
        at


 com.google.appengine.tools.development.agent.runtime.Runtime$2.run(Runtime.java:133)
        at


 com.google.appengine.tools.development.agent.runtime.Runtime$2.run(Runtime.java:131)
        at java.security.AccessController.doPrivileged(Native Method)
        at


 com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:130)
        at


 org.apache.wicket.util.lang.WicketObjects.newInstance(WicketObjects.java:377)
        at
 org.apache.wicket.Application.addInitializer(Application.java:577)
        at org.apache.wicket.Application.load(Application.java:615)
        at

 org.apache.wicket.Application.initializeComponents(Application.java:501)
        at
 org.apache.wicket.Application.initApplication(Application.java:808)
        at

 org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:346)
        at

 org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:286)
        at
 org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
        at

 org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at


 org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:662)
        at
 org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
        at


 org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
        at


 org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
        at
 org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
        at

 org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50

Handling POST, PUT and DELETE from a resource

[Daniel Watrous]

I'm building a web service and I wonder if there's some way to detect
and do something unique when calling a ResourceReference with
different HTTP methods.

-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org

Re: Handling POST, PUT and DELETE from a resource

[Daniel Watrous]

That's a fantastic answer. I'll look at other solutions.

Daniel

On Wed, Jan 4, 2012 at 7:03 PM, 7zark7 7za...@gmail.com wrote:
 I know these sort of replies are annoying, but I don't think Wicket is a good 
 choice for handling web service calls - it's pretty easy to map other paths 
 to servlets or other handlers that better deal with PUT, DELETE, etc.

 --
 Anh My
 Sent with Sparrow (http://www.sparrowmailapp.com/?sig)


 On Wednesday, January 4, 2012 at 3:49 PM, Daniel Watrous wrote:

 I'm building a web service and I wonder if there's some way to detect
 and do something unique when calling a ResourceReference with
 different HTTP methods.

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org 
 (mailto:users-unsubscr...@wicket.apache.org)
 For additional commands, e-mail: users-h...@wicket.apache.org 
 (mailto:users-h...@wicket.apache.org)





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To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org

Wicket on Google App Engine

[Daniel Watrous]

Hi,

I've been working for a few days to get a wicket application going for
Google App Engine with mixed results. I hope these questions aren't
too noobie for this list?

There are a couple of really old articles which Google brings up first:
http://stronglytypedblog.blogspot.com/2009/04/wicket-on-google-app-engine.html
http://www.danwalmsley.com/2009/04/08/apache-wicket-on-google-app-engine-for-java/

I've also found this resource after digging through the wicket users
list, but I can't figure out how I'm supposed to use it:
https://github.com/wicketstuff/core/tree/master/jdk-1.6-parent/gae-initializer-parent

I'm using eclipse with the GAE plugin.

So far this is what I have accomplished.
1) the first link above provides a download demo as an eclipse
project. I can get this to run, but it's working with old versions
(wicket 1.3.5, appengine sdk 1.2.0). I haven't successfully updated.
2) I can create a new google app engine project in eclipse. It runs
fine and I can develop servlets.
3) I can user the maven build script from the quickstart to get a
functional wicket project.

I'm really struggling trying to figure out how to use the
gae-initializer or a base GAE project from eclipse and end up with a
functional wicket application...

I'm not sure what other information to include at this point. Please
share any pointers or links to other tutorials that might help me.

Daniel

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Re: Throwing RestartResponseException within RequestCycleListener [1.5 - incl. quickstart]

[Daniel Soneira]

)
at 
org.eclipse.jetty.io.UncheckedPrintWriter.write(UncheckedPrintWriter.java:274)

... 36 more

On 14.12.2011 15:28, Martin Grigorov wrote:

Hi,

No need to throw exceptions.
You just need to return IRequestHandler impl that should be used to
handle the error (I assume you talk about
IRequestCycleListener#onException())
Try with: return new RenderPageRequestHandler(new PageProvider(SomePage.class))

On Wed, Dec 14, 2011 at 4:20 PM, Daniel Soneira
daniel.sone...@joyn-it.at  wrote:

Hi there,

Throwing a RestartResponseException in a custom RequestCycleListener does
not yield the result I was hoping for.
Instead of redirecting to the specified page the DefaultExceptionMapper only
shows an Unexpected RuntimeException page.
The equivalent code (within a custom RequestCycle) used to work in 1.4.

Here's the log:
ERROR - DefaultExceptionMapper - Unexpected error occurred
org.apache.wicket.RestartResponseException

The listener tries do redirect the very FIRST request - so you have to
restart the jetty server when analyzing the problem.

Attached you'll find a quickstart that demonstrates the problem.
Note: The code is essentially the same as in WICKET-3248.

Any help on this matter is appreciated.
I can also create a JIRA issue if needed.

Kind regards,
Daniel Soneira
--
www.joyn-it.at


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Re: Throwing RestartResponseException within RequestCycleListener [1.5 - incl. quickstart]

[Daniel Soneira]

OK, I've managed to get rid of all exceptions that were logged.

Here's the working code:

@Override
public void onBeginRequest(RequestCycle cycle) {
Session session = Session.get();
if (session.getMetaData(REDIRECTED_JSESSIONID) == null) {
logger.debug(first application request - redirecting to 
loading page);

session.setMetaData(REDIRECTED_JSESSIONID, Boolean.TRUE);
String url = getServletRequestContextPath() + / + 
cycle.getRequest().getUrl();
cycle.replaceAllRequestHandlers(new 
RenderPageRequestHandler(new PageProvider(newLoadingPage(url)), 
RedirectPolicy.ALWAYS_REDIRECT));

cycle.getResponse().reset();
}
}

It sure is MORE code than the previous one-liner (throwing the exception).
If the user should not use a RestartResponseException within a 
RequestCycleListener in 1.5 any more (since it worked in 1.4) I suggest 
this to be stated in its JavaDoc.

I'm also not sure in which cases it _IS_ considered to be OK to do so?!

Cheers,
Daniel

- - - - - - - -
Side note:
The resetting of the response was in the right direction but only doing 
it AFTER setting a new request handler eliminates the following exception:


java.lang.IllegalStateException: Header was already written to response!
at 
org.apache.wicket.protocol.http.HeaderBufferingWebResponse.checkHeader(HeaderBufferingWebResponse.java:64)
at 
org.apache.wicket.protocol.http.HeaderBufferingWebResponse.setDateHeader(HeaderBufferingWebResponse.java:134)
at 
org.apache.wicket.protocol.http.BufferedWebResponse$SetDateHeaderAction.invoke(BufferedWebResponse.java:310)
at 
org.apache.wicket.protocol.http.BufferedWebResponse.writeTo(BufferedWebResponse.java:580)
at 
org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:185)
at 
org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:167)
at 
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:750)
at 
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:301)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:310)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:310)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:310)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:310)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:310)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:310)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:310)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:310)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:310)
at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:310)
at 
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:224)
at 
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:280)
at 
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162)
at 
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:218)
at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1326)
at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:940)
at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409)
at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:874)
at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)

at org.eclipse.jetty.server.Server.handle(Server.java:349)
at 
org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:441)
at 
org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:904)

at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:565

FileUpload vs. CryptoURL in Wicket 1.5

[Daniel Weidele]

Hello,

i'm, experiencing a problem with FileUpload within a ModalWindow when
enabling the CryptoURLMapper in my application as being done in Wicket 1.5
via the following:

setRootRequestMapper(new CryptoMapper(getRootRequestMapper(), this));

Is there any possibility to take out the fileupload URL from encryption? Or
how does it work?
The error I receive within the WICKET AJAX DEBUG-console just says:

*NFO: *Invoking pre-call handler(s)...
*ERROR: *
Wicket.Ajax.Call.failure: Error while parsing response: Could not find
root ajax-response element
*INFO: *Invoking post-call handler(s)...
*INFO: *Invoking failure handler(s)...


Thanks for help!

Re: Download file from ModalWindow problem

[Daniel Weidele]

Have you tried to put modal itself inside of another form, too?


Am 08.12.2011 um 13:29 schrieb heapifyman heapify...@gmail.com:

 Hello again.
 
 Here's some more information about my problem: in the ModalWindow's
 SubmitButton's onSubmit() I call at the end:
 
 ModalWindow.closeCurrent(target);
 download.initiate(target);
 
 The AJAXDownload behaviour is added to the SubmitButton in the ModalWindow.
 Or do I have to add it to the button on my page that opens the ModalWindow?
 
 Thanks in advance.
 
 
 
 2011/12/7 heapifyman heapify...@gmail.com
 
 Hello all,
 
 I have a problem with a file download from a ModalWindow.
 The ModalWindow contains a form in which the user can specify some
 parameters. When clicking submit I generate a PDF based on the chosen
 parameters and offer it for download. The ModalWindow is closed then.
 I followed the approach described here
 https://cwiki.apache.org/WICKET/ajax-update-and-file-download-in-one-blow.html
  and
 it actually works quite nice.
 
 My problem is that after the file is downloaded and the ModalWindow is
 closed all my Ajax stuff on the page from which the ModalWindow was opened
 are not working anymore. Only when I reload the page, the Ajax stuff is
 working again.
 
 I would appreciate any hints as to what I might be doing wrong. Or maybe
 someone has another code example of how to download a file from a
 ModalWindow?
 
 Thanks in advance.
 
 
 

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Re: Download file from ModalWindow problem

[Daniel Weidele]

No, it's doesn't look nested, yet. You may nest forms in Wicket, where the 
modal windows markup is in between.

This worked for me when I experienced a similar problem.

Von meinem iPad gesendet

Am 08.12.2011 um 14:12 schrieb heapifyman heapify...@gmail.com:

 I believe it already is. My markup looks like this:
 
 form wicket:id=form
 fieldset
 button wicket:id=downloadButtonspan
 wicket:id=downloadButtonLabel/span/button
... more buttons here ...
/fieldset
div wicket:id=dataPanel/div
 /form
 
 where dataPanel is:
 wicket:panel
 wicket:container wicket:id=checkGroup
 div wicket:id=dataContainer/div
 /wicket:container
div wicket:id=downloadDialog/div
 wicket:panel
 
 
 2011/12/8 Daniel Weidele daniel.weid...@uni-konstanz.de
 
 Have you tried to put modal itself inside of another form, too?
 
 
 Am 08.12.2011 um 13:29 schrieb heapifyman heapify...@gmail.com:
 
 Hello again.
 
 Here's some more information about my problem: in the ModalWindow's
 SubmitButton's onSubmit() I call at the end:
 
 ModalWindow.closeCurrent(target);
 download.initiate(target);
 
 The AJAXDownload behaviour is added to the SubmitButton in the
 ModalWindow.
 Or do I have to add it to the button on my page that opens the
 ModalWindow?
 
 Thanks in advance.
 
 
 
 2011/12/7 heapifyman heapify...@gmail.com
 
 Hello all,
 
 I have a problem with a file download from a ModalWindow.
 The ModalWindow contains a form in which the user can specify some
 parameters. When clicking submit I generate a PDF based on the chosen
 parameters and offer it for download. The ModalWindow is closed then.
 I followed the approach described here
 
 https://cwiki.apache.org/WICKET/ajax-update-and-file-download-in-one-blow.htmland
 it actually works quite nice.
 
 My problem is that after the file is downloaded and the ModalWindow is
 closed all my Ajax stuff on the page from which the ModalWindow was
 opened
 are not working anymore. Only when I reload the page, the Ajax stuff is
 working again.
 
 I would appreciate any hints as to what I might be doing wrong. Or maybe
 someone has another code example of how to download a file from a
 ModalWindow?
 
 Thanks in advance.
 
 
 
 
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RE: best way to accommodate dynamic properties

[Daniel Watrous]

I'm still trying to figure this out. I would like to be able to do something 
like the following:

HTML:
img wicket:id=testimage

JAVA:
public class ImageTestPage extends WebPage{
public ImageTestPage() {
Image myImg = new Image(testimage);
myImg.setUrlForImageSrc(http://path/to/image.gif;);
myImg.setWidth(200);
myImg.setHeight(100);
add(myImg);
}
}

Obviously the Image class doesn't work that way... Can someone tell me how I 
would accomplish this so that I can define the image, height and width 
independent from the markup?

Daniel

-Original Message-
From: Daniel Watrous [mailto:daniel.watr...@bodybuilding.com] 
Sent: Friday, December 02, 2011 5:20 PM
To: users@wicket.apache.org
Subject: best way to accommodate dynamic properties

I'm interested in having pulling the width and height for an img from a 
database, but I'm not sure what the best way is to create a component and 
corresponding HTML mapping.

Please send an example or link to previous response if possible. I've searched 
the users list archives but didn't find what I was looking for.

Thanks.

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AbstractAjaxTimerBehavior with restart ability

[Daniel Stoch]

Hi,

Current implementation of AbstractAjaxTimerBehavior has a
functionality to stop() pooling. But once stopped it cannot be
restarted. There are situations when we want to periodically refresh
components from one event to another, but not all the time (to avoid
unnecessary requests to server). So it would be nice to have a
restarting ability in AbstractAjaxTimerBehavior. Something like:

  public final void start(final AjaxRequestTarget target) {

target.getHeaderResponse().renderOnLoadJavascript(getJsTimeoutCall(getUpdateInterval()));
  }

But this method does not work in all situations. Eg. when you stopped
this timer using stop() method, the above start() does not work (but
this is probably because a stopped flag cannot be reset to false).

What do you think about such improvement in AbstractAjaxTimerBehavior?
It would be great to has it also in 1.4 because I cannot upgrade to
1.5 ;).

--
Daniel

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Re: Apache Wicket is a Flawed Framework

[Daniel Neugebauer]

I was searching for a Java framework two years ago because I wanted 
server-side persistence and a statically typed language with the option 
for easy AJAX and debugging while the output markup is largely 
maintained the way I wrote the templates.


I think I found Wicket via DZone due to the 1.4 release. I already read 
a book from Manning before and liked that it was written in a way that 
enables the reader to jump right into programming after having read the 
introductory chapters. I was happy when I saw that Wicket in Action 
seemed to use a similar structure. I think I tried Wicket without the 
book first but got stuck really quick (at latest when I got to the point 
when I needed models which was quite immediate) and so buying WiA was a 
quick (and good) decision.


As with any framework, it takes at least one project to get your head 
around it, so you better start with some personal project in your free 
time. On the following 2-3 projects you are iterating on the maybe I 
could have done it better that way process. But that's just the way it 
is for any framework in any language (and also without any framework at 
all). I assume the OP is using Wicket the first time without any 
guidance and just hasn't found into it yet.


I wasn't able to put Wicket in use at work until January this year but 
now we are on our 2nd (my 4th) Wicket project. What I could observe is that


1) you usually don't find into Wicket until you read a book
   (with WiA it's sufficient to read the introductory chapters, jump
   into coding and come back to the chapters whenever you need to know
   something)

2) there is an aversion until you get your head around the correct use
   of models and anonymous inner classes, at least if you never did
   something like that before
   (WiA introduces it quite good but you have to start coding before
   you really get it)

3) you should follow the (excellent) mailing list to read about issues
   you may encounter and use it as a knowledge base once you hit some
   problem/question
   (better on an own email account than on the archives)

4) if documentation does not help, read the source code
   (I found it pretty readable which is much different from other
   frameworks I have used/tried before - being easily accessible with
   Maven and a decent IDE, there is no excuse not to look into it)

So, the conclusion is: There should be better free documentation but if 
you pick up a book it's quite easy to get started and the best 30€ ever 
spent.



- I agree that it is rather too easy for Wicket to make things stateful,
when you don't want it


To turn that into a point of critique: It may be hard to get stateless 
pages.


I've made a similar experience where I had a search form that would not 
go stateless. I couldn't figure out where anything was persisted but if 
I had dug deeper, I may have found the cause, but that issue wasn't 
important enough to invest more time in it.



- and in my opinion the stuff you need to do to achieve normal URLs (no ?,
no version number, no nothing) is just a pain. *Every* URL, for stateless or
stateless pages or whatever, should be normal, otherwise it is just not
acceptable -- users never want to see those complicated-looking URLs under
any circumstance


I prefer the way Wicket handles persistence with at-most-once semantics 
by simply adding version numbers on the URL (after a redirect from an 
internal URL) as other methods are less successful in achieving that out 
of the box, pollute URLs even further or add hidden markup. IMO, two 
numbers on the URL are quite unobtrusive, especially as they are simply 
ignored and transparently reassigned if the session does not match (i.e. 
on a URL that has been pasted into an email etc.).



- did not yet try out Ajax with Wicket, so I have no opinion on that


It's incredibly easy to use; you should really try it. :)


Just my 2¢. In all, a great framework that is much easier to use than e.g.
things based on JSP. Keep up the good work, guys !


Full ack! :)

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Re: Display HTML in Label with validation

[Daniel Stoch]

Thanks for your suggestion. But I need to validate a fragment of HTML,
but it seems that HtmlDocumentValidator validates only whole
documents.
From my point of view the following texts are valid HTML fragments:
- This is sample text
- bThis is/b sample pparagraph/p

--
Daniel


On Thu, Sep 15, 2011 at 5:31 PM, manuelbarzi manuelba...@gmail.com wrote:
 may HtmlDocumentValidator help you.
 .



 On Thu, Sep 15, 2011 at 5:05 PM, Daniel Stoch daniel.st...@gmail.com wrote:
 Hi,

 How to display dynamic HTML content on page which can be invalid
 (because this HTML is entered by a user). I can use
 Label.setEscapeModelStrings(false), but with invalid HTML content the
 page will not be rendered (because of HTML parsing error). So maybe I
 can use some of standard Wicket mechanisms to parse this HTML first to
 check if I can display it on page? There are some parsers within
 framework...

 --
 Daniel

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Display HTML in Label with validation

[Daniel Stoch]

Hi,

How to display dynamic HTML content on page which can be invalid
(because this HTML is entered by a user). I can use
Label.setEscapeModelStrings(false), but with invalid HTML content the
page will not be rendered (because of HTML parsing error). So maybe I
can use some of standard Wicket mechanisms to parse this HTML first to
check if I can display it on page? There are some parsers within
framework...

--
Daniel

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setRenderAllowed called for invisible components

[Daniel Stoch]

Hi,

Is it a valid behavior that setRenderAllowed(...) method is called for
invisible components (components that are not visible in hierarchy).
I have a use case with DataView component displaying list of links.
When I hide this DataView (eg. by setting dataView.setVisible(false))
then for each of the links components (created in previous request)
setRenderAllowed(...) method is called.

I have a quickstart app to simulate this, but I don't know is it a bug
and should I create JIRA issue for this?

--
Daniel

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Re: setRenderAllowed called for invisible components

[Daniel Stoch]

Wicket 1.4.18

On Mon, Sep 5, 2011 at 12:29 PM, Daniel Stoch daniel.st...@gmail.com wrote:
 Hi,

 Is it a valid behavior that setRenderAllowed(...) method is called for
 invisible components (components that are not visible in hierarchy).
 I have a use case with DataView component displaying list of links.
 When I hide this DataView (eg. by setting dataView.setVisible(false))
 then for each of the links components (created in previous request)
 setRenderAllowed(...) method is called.

 I have a quickstart app to simulate this, but I don't know is it a bug
 and should I create JIRA issue for this?

 --
 Daniel


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Re: setRenderAllowed called for invisible components

[Daniel Stoch]

Hi,

Yes, it should be called also on invisible components, but only when
it is any chance that these components can be rendered. If one of
theirs parents are not visible, then such component will not be
rendered.

In my scenario DataView is visible only when dataView.getItemCount()
 0. But it leads to an abnormal situation:
1. First request: dataView.getItemCount()=3 so DataView renders 3
subitems (children).
2. Second request: dataView.getItemCount()=0 (eg. someone remove all 3
records from DB), so I set DataView.setVisible(false), but DataView
subitems are not removed from its children list before calling
DataView.setRenderAllowed (MarkupContainer.setRenderAllowed).
MarkupContainer.setRenderAllowed calls setRenderAllowed for all 3
subitems in visitChildren(...). But these subitems should not exists
in current request because dataView.getItemCount()=0. They are not
removed from DataView because it is not visible and calling
setRenderAllowed for these subitems is a bug for me.


--
Daniel

On Mon, Sep 5, 2011 at 4:21 PM, Andrea Del Bene adelb...@ciseonweb.it wrote:
 Hi,

 I'm not completely  sure, but setRenderAllowed is called to check rendering
 authorization, so it should be called also on invisible components.


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Re: new user registration email verification

[Daniel Neugebauer]

It's like you already said in your first mail. For one of our websites 
the behaviour is:


1) generate some kind of a random, unique token
   s.th. like UUID.randomUUID().toString()

2) register token to user in database

3) email link including the token to the user
   (use a readily available email library)

For your application to process the link, the link should end in a 
bookmarkable page with a short URL (so it doesn't take too much space in 
the email). If you append the token like you usually do (depending on 
the UrlCodingStrategy used), the page can get the token by accessing the 
PageParameters. If you have multiple types of opt-ins/confirmations 
(user accounts, newsletters etc.) then you could use one page to process 
all tokens and let it decide which additional page should be 
instantiated and redirected to after token verification depending on the 
token type you saved in your database.


On our website we check the token for the correct pattern using a 
regular expression and then get the user's email address/data from the 
database and let the user confirm his address by re-entering it and 
continue with an account setup wizard. However, such a double-safety 
should rarely be necessary. We could as well confirm the account right 
away (or immediately show/redirect to the wizard instead); once you have 
the token you know what user is intended to be accessed so you can do 
whatever you want.


Also make sure your tokens will time out after a week or so. You may 
also want to count token requests/validations and block users in case 
the number gets too high (get the client IP address by accessing the 
servlet request and record it somewhere). Maybe we are just a bit too 
cautious but our application hosts quite some data, so it can't be wrong. :)


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Re: Wicket / Hibernate / Databinder (dead?)

[Daniel Toffetti]

jbrookover wrote:
 
 We've been using Wicket 1.4 + Hibernate 3.3 + Databinder 1.3.0 for quite
 some time now.  I wanted to update to a more recent version of Hibernate,
 but Databinder was incompatible and seems pretty dead.
 
 My question is what do people use for their bridge between Wicket and
 Hibernate?  Do you all write your own LoadableDetachableModels to load
 from the database?  Is there an alternative to Databinder that I don't
 know about?  A wicketstuff wiki page mentioned 'HibernateModel' but I
 haven't seen any actual code.
 
 I love Databinder's HibernateObjectModel, SortableHibernateProvider, etc. 
 If there's nothing else, I'll keep on updating them, but I wanted to make
 sure there wasn't some more active alternative.
 

Hi,

AFAIK Nathan was not maintaining it anymore but Rodolfo Hansen was
working on it a while ago to get it up to new versions of Hibernate and
Wicket, please check here: https://github.com/kryptt, last updates are from
April 5.

Cheers,

Daniel


--
View this message in context: 
http://apache-wicket.1842946.n4.nabble.com/Wicket-Hibernate-Databinder-dead-tp3557635p3557902.html
Sent from the Users forum mailing list archive at Nabble.com.

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Re: [VOTE] Behavior of CheckBox With Respect to setRequired(true)

[Daniel Neugebauer]

I would stick with 1 (required to be checked).

The main reason would be not to break compatibility with old versions. I 
actually used .setRequired(true) on legal checkboxes (disclaimers) in 
one of our applications because if I have a required checkbox I expect 
it to be needed to be checked. Although I will change that in our 
project now that I know such a change is being discussed, I wouldn't 
expect others to be that observant of the issue and have unit tests that 
prevent anything from breaking on a future upgrade.


BTW an empty string (that's not null) is a string nevertheless. 
Following the argument that an unchecked (false) checkbox should be 
regarded as valid if it is required, an empty string should be accepted 
as a valid input as well. I've just tested it with Wicket 1.4 and 
actually both of the following TextFields validate to a failed state:


TextField tf1 = new TextField(text1, new 
PropertyModelString(this, test1));

tf1.setRequired(true);
tf1.setConvertEmptyInputStringToNull(false);
form.add(tf1);

TextField tf2 = new TextField(text2, new 
PropertyModelString(this, test2));

tf2.setRequired(true);
tf2.setConvertEmptyInputStringToNull(true);
form.add(tf2);

So, TextField.setRequired doesn't validate the syntactic meaning as 
well, instead it validates the semantic meaning, just as 
CheckBox.setRequired does. If that's consistently used throughout 
Wicket, I would expect CheckBox.setRequired to validate false unless the 
CheckBox is actually checked.


Just my 2 cents,
Daniel

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Re: flexible authentication

[Daniel Neugebauer]

Hi!

We have the same situation in one of our web applications (profile pages 
may be hidden for everyone except the profile owner). Since I wasn't 
able to find a clean way to check such conditions from our page 
authorization strategy, I added that to the checks I already had in the 
page constructor method (other checks are to catch invalid indices 
etc.). If the validation fails I redirect the user to a friendly-written 
error page and call return to stop the method afterwards.


Maybe it's possible to get the page parameters by accessing the request 
cycle directly from an authorization strategy?


However, if there are more situations like that I would expect the 
authorization strategy to become big and cluttered very fast, so I don't 
think such checks should go there but instead be performed by the page 
class they are meant for. If the same checks are performed in different 
classes, they could go into a (static) method, maybe in a super class.


If there's (yet) another good place to put such checks in, I would be 
interested in it as well. :)


Bye,
Daniel

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Re: Extend AjaxFormComponentUpdatingBehavior functionality for required FormComponents

[Daniel Stoch]

 Maybe I should explain one of use-cases. Let's say we have a form to
 enter RSS feed information. There are two TextFields:
 - url for RSS feed (urlModel)
 - custom RSS feed name (nameModel).
 Both are required and both have OnChangeBehavior attached. When user
 enter url for RSS the name of it is retrieved and set into nameModel.
 But only when nameModel has null object or nameEdited (boolean flag)
 is false.
 Now user can edit name field (then nameEdited flag is set to true, to
 avoid changing this name when user change url).
 But when user clears name field nameModel should be updated to null,
 but behavior does not allow this (because of validation of required
 field).

 what you want can be done in a simple manner. do not mark your field
 as required, since it is not. write your own validator that allows
 setting the field value to null when the edit flag is set, and fails
 when it is not.

But this field is required - from user point of view. User cannot
submit form without filling the name.


 you can create your own updating behavior that calls
 setrequired(false) on the component prior to running validation/model
 update if that is what you want. but we will not ship something like
 this as part of core because it doesnt generally make sense.

 Probably I'll write my own behavior, because it seems this is the only
 solution :).
 Maybe it does not make sense from your point of view, but from mine it
 does. I think your point of view is sometimes too narrow.

 my point of view has to be narrow. as developers of the framework we
 try to make the 95% usecase as simple as possible, while leaving the
 door open for the other rare 5%. unfortunately for you, this is the
 other 5%.


My post was only a proposal, because it is not possible to easy extend
AjaxFormComponentUpdatingBehavior because onEvent() is final. I want
to avoid copy/paste code with only a little change. And I think this
change is very useful. But ok, I understand you, so I'll implement it
by myself.

But always is good to try convince you first :).

--
Daniel

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Re: Extend AjaxFormComponentUpdatingBehavior functionality for required FormComponents

[Daniel Stoch]

On Thu, Feb 17, 2011 at 10:37 PM, Igor Vaynberg igor.vaynb...@gmail.com wrote:
 validation is there to make sure the user of the webapp cannot push an
 illegal value into a model. it doesnt matter if its just the component
 that is being submitted or the entire form. components decide whether
 or not a user can push null in by using their required flag. you want
 to push null, dont mark the component as required. it is as simple as
 that. you can create your own updating behavior that calls
 setrequired(false) on the component prior to running validation/model
 update if that is what you want. but we will not ship something like
 this as part of core because it doesnt generally make sense.

 -igor

I've found examples in Wicket core, which are very similar to my
use-cases, so it looks like sometimes it does make sense :).

Look at the classes which implements IOnChangeListener. There is a
method onSelectionChanged() which implementation in many cases looks
like:

public final void onSelectionChanged()
{
convertInput();
updateModel();
onSelectionChanged(getModelObject());
}

So as you can see here validation is bypassed and null values can be
push into the model even if FormComponent is required. Eg.
DropDownChoice: when I use non-ajax
wantOnSelectionChangedNotifications() I can push null into its model,
but the same thing does not work with OnChangeAjaxBehavior(). So there
is a small inconsistence between ajax and non-ajax functionality. My
case is to allow the same behavior for ajax calls.

--
Daniel

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Re: Extend AjaxFormComponentUpdatingBehavior functionality for required FormComponents

[Daniel Stoch]

It can be called with null value when you set DropDownChoice.setNullValid(true).
You don't want to understand that this is a good behavior in many
cases, not a bug. But ok it is your framework, so you decide. But
maybe other Wicket commiters have a different feeling about it?

--
Daniel

On Fri, Feb 18, 2011 at 5:36 PM, Igor Vaynberg igor.vaynb...@gmail.com wrote:
 that looks like a bug to me. the reason it has gone unnoticed for so
 long is that someone would have to hack html to cause it. onchange
 only fires in browsers when there is a value selected, so that code
 would not typically be called with a null, and thus no need to check
 required.

 -igor

 On Fri, Feb 18, 2011 at 7:22 AM, Daniel Stoch daniel.st...@gmail.com wrote:
 On Thu, Feb 17, 2011 at 10:37 PM, Igor Vaynberg igor.vaynb...@gmail.com 
 wrote:
 validation is there to make sure the user of the webapp cannot push an
 illegal value into a model. it doesnt matter if its just the component
 that is being submitted or the entire form. components decide whether
 or not a user can push null in by using their required flag. you want
 to push null, dont mark the component as required. it is as simple as
 that. you can create your own updating behavior that calls
 setrequired(false) on the component prior to running validation/model
 update if that is what you want. but we will not ship something like
 this as part of core because it doesnt generally make sense.

 -igor

 I've found examples in Wicket core, which are very similar to my
 use-cases, so it looks like sometimes it does make sense :).

 Look at the classes which implements IOnChangeListener. There is a
 method onSelectionChanged() which implementation in many cases looks
 like:

        public final void onSelectionChanged()
        {
                convertInput();
                updateModel();
                onSelectionChanged(getModelObject());
        }

 So as you can see here validation is bypassed and null values can be
 push into the model even if FormComponent is required. Eg.
 DropDownChoice: when I use non-ajax
 wantOnSelectionChangedNotifications() I can push null into its model,
 but the same thing does not work with OnChangeAjaxBehavior(). So there
 is a small inconsistence between ajax and non-ajax functionality. My
 case is to allow the same behavior for ajax calls.

 --
 Daniel

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Re: Extend AjaxFormComponentUpdatingBehavior functionality for required FormComponents

[Daniel Stoch]

On Fri, Feb 18, 2011 at 10:09 AM, Daniel Stoch daniel.st...@gmail.com wrote:


 My post was only a proposal, because it is not possible to easy extend
 AjaxFormComponentUpdatingBehavior because onEvent() is final. I want
 to avoid copy/paste code with only a little change. And I think this
 change is very useful. But ok, I understand you, so I'll implement it
 by myself.

I've tried to implement my own behavior (with an option to bypass
validation step). But unfortunately I cannot call
formComponent.convertInput() which is necessary to get value from
input. This is a protected method. Can you make it a public method?

--
Daniel

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