how to gwt + kawa

[cnwesleywang]

Does anybody knows howto use kawa in gwt host mode?

in the External tomcat,after configure following the guide
http://www.gnu.org/software/kawa/server/auto-servlet.html, kawa works
just fine, but in host mode, I do not know where to put the "+default
+" or other relative file. I have tried to put them in the public
folder,inside tomcat ROOT folder,etc, but it just does't work.

Can anybody help me to resolve this?

Thanks and sorry for my poor English.

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Re: Problem with non-english characters

[Lothar Kimmeringer]

malikbster schrieb:

> So what i do next is adding a "meta" statement into the html file that
> is being load into the project.
> 
> 
> 
> This doesnt work either, get the same result.

Is the source saved as UTF-8 and do you tell the java-compiler
that the encoding to be used is UTF-8?

> So next I try to convert
> inside the java code every string into UTF-8 charset using URL
> methods:
> 
> menu.addItem(URL.encode("Presentación"), menuPresentacion);
> 
> And now firefox shows it like this:
> 
> Presentaci%EF%BF%BDn

Reason is that the String you pass to the method is encoded
by the underlying system so the % is encoded in a way that
the character is shown.


Regards, Lothar

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Re: Simulate anchors due bug with IE

[todd.sei...@gmail.com]

OK, I whipped this up for you. It should get you close to what you
want to do. The downside will be that you may have to have a 'visible'
widget (in this case a transparent image) to anchor.



import java.util.HashMap;

import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;

public class AnchorManager {

private HashMap anchors = new HashMap
();

public Widget createLink(String text, final String anchorName) {
Label lbl = new Label(text);
lbl.addClickListener(new ClickListener() {
public void onClick(Widget sender) {
try {
showAnchor(anchorName);
} catch (Exception e) {
// TODO: handle Exception
}
}
});
return lbl;
}

public Widget createAnchorWidget(String name) throws Exception {
if (!anchors.containsKey(name)) {
return new Image("pixel.gif"); // really should use 
image bundle
} else {
throw new Exception("Anchor already exists");
}
}

public void showAnchor(String name) throws Exception {
if (anchors.containsKey(name)) {
DOM.scrollIntoView(anchors.get(name).getElement());
} else {
throw new Exception("Anchor does not exists");
}
}

}


On Dec 23, 1:02 pm, obesga  wrote:
> I've trying to implement internal anchors in GWT ( to make an index
> into a lng page), but there's a problem with IE that makes the
> whole page to get reloaded.
> As far as I've been searching in forums, the problem is not resolved
> so 
> thishttp://groups.google.com/group/Google-Web-Toolkit/browse_thread/threa...http://groups.google.com/group/Google-Web-Toolkit/browse_thread/threa...http://groups.google.com/group/Google-Web-Toolkit/browse_thread/threa...
>
> http://code.google.com/p/google-web-toolkit/issues/detail?id=2152
>
> ¿ Is there another way to implement or emulate the internal linking of
> a document in GWT ?
> Perhaps with ScrollPanel.setScrollPosition(); ¿ anyone has tried, can
> give me some indication on how to start ?
>
> Thank you
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Re: Using HTTPRequest.asyncPost ()

[todd.sei...@gmail.com]

This method is deprecated as of GWT 1.5. You should look at
RequestBuilder (http://google-web-toolkit.googlecode.com/svn/javadoc/
1.5/com/google/gwt/http/client/RequestBuilder.html)

Post data is URL encoded.

On Dec 23, 8:56 am, Jag  wrote:
> Hi,
>
>       I am using asyncGET () to send requests to my server and i am
> handling the responses. But in one of my case the length of the
> request url is very huge so i need to send that request through
> asyncPost(). How can use this asyncPost() to send post requests? How
> to build the postdata of asyncPost()?
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Re: Get file from server with GWT-RPC

[todd.sei...@gmail.com]

GWT RPC is not uesd for getting images. You can just and an Image
widget to your application and set the URL to something like
"myServerFolder/image.jpg"

On Dec 24, 9:01 am, Daniele B  wrote:
> Hi.
> I work on a photogallery application for my thesis.
> I have a problem.
> How can I do to retrieve image files stored on a server folder trought
> GWT-RPC?
>
> Thanks at all!
> Sorry fo my english!!! :)
>
> Daniele.
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Re: Form submit

[olivier FRESSE]

Well,If you nedd to retrieve post data in a servlet, just manage it in

 public void doPost(HttpServletRequest request,
 HttpServletResponse response)

...

request.getParameter("name")

...

where name is the name of your HTML input.


Olivier.


2008/12/24 Daniele B 

>
> Hi.
> I'm a newbie of GWT and not speaking english very well.
> I have this portion of code of my thesis application:
>
> [...]
> private FileUpload fileUpload = new FileUpload();
>private FormPanel formUpload = new FormPanel();
>private Button loadButton = new Button("Load new image");
>private Button addButton = new Button("Add new category");
>private Label l = new Label();
>
>public WebPhotoGalleryMenuPanel(){
>
>//fileUpload.setName(" imageUpload");
>formUpload.setEncoding(FormPanel.ENCODING_MULTIPART);
>formUpload.setMethod(FormPanel.METHOD_POST);
>formUpload.setAction(GWT.getModuleBaseURL()+"UploadPhoto");
>
>submit.addClickListener(this);
> [...]
>
> photoInfoPanel.add(new Label("Enter category: "));
>TextBox categoryTextBox = new TextBox();
>
>photoInfoPanel.add( categoryTextBox);
>photoInfoPanel.add(new Label("Enter photo name: "));
>photoInfoPanel.add(new TextBox());
>photoInfoPanel.add(fileUpload);
>photoInfoPanel.add(submit);
>photoInfoPanel.add(cancel);
>photoInfoPanel.setSpacing(3);
>
>photoInfoContainer.add( photoInfoPanel);
>
>formUpload.setWidget( photoInfoContainer);
>
> When user click on submit button, the form is submitted to UploadPhoto
> servlet.
>
> How can I do get text of categoryTextBox on servlet?
> Thanks.
>
> Sorry fo my english!
>
> Daniele.
>
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re-drawing Popup Panel in IE

[ussuri]

Hello!

I perform several long computations on the client, and I show a small
notification window like this:

// sample code
for( int step = 0; step < 5; step++ ) {
DecoratedPopupPanel dpp = new DecoratedPopupPanel( false, true );
dpp.add( new HTML( "step " + Integer.toString(step) ));
dpp.show();
do_job( step ); // 1-2 seconds
dpp.hide();
}

In FF, all five steps are shown visually; in IE, the first message is
shown until the whole loop is finished.

Is there a way to re-draw the popup panel in IE without breaking the
flow of the program through timers?

Thanks!

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Re: same-origin security restriction

[andrew_lau]

I got this worked out using apache's reverse proxy module.

Workstation --> apache proxy ---> (rpc call?)
(192.168.2.2) |-- yes --> ejb server
  |-- no --> workstation port 

Basically, you just need to set up mod_proxy like this:

===
httpd.conf
==
ProxyRequests Off

Order deny,allow
Deny from all
allow from 192.168


ProxyPass /mywebmodule/gwt-rpc-service 
http://ejbserver.com/mywebmodule/gwt-rpc-service
ProxyPassReverse /mywebmodule/gwt-rpc-service
http://ejbserver.com/mywebmodule/gwt-rpc-service

ProxyPass /com.mygwtapp.UIModule http://192.168.2.2:/com.mygwtapp.UIModule
ProxyPassReverse /com.mygwtapp.UIModule 
http://192.168.2.2:/com.mygwtapp.UIModule



Please note that 192.168.2.2 is my workstation where I develop the
code. Thus, when I
start hosted mode in that box, the tomcat instance will listen to port
 of my
workstation.  Thus, this proxy server will contact the tomcat in my
workstation for
any queries that has /com.mygwtapp.UIModule in its path, and will
contact my real EJB
server, when the hosted mode browser does rpc call.

This way, it is "clean", the proxy server separate the calls for you.

Here is my hosted mode batch file:
@java -Xmx512M -cp
"%~dp0\src;%~dp0\bin;C:/javadev/lib/gwt-windows/gwt-user.jar;N:/
javadev/lib/gwt-maps.jar;C:/javadev/lib/gwt-windows/gwt-dev-
windows.jar"
com.google.gwt.dev.GWTShell -out "%~dp0\www" %*
http://theproxyserver/com.mygwtapp.UIModule/UIModule.html -whitelist
"^http[:][/][/]theproxyserver"


On Nov 25, 4:12 pm, Brian  wrote:
> Created issue 3131: (and 13's my lucky number... so close sorta..)
>
> http://code.google.com/p/google-web-toolkit/issues/detail?id=3131
>
> Please star it :-)
>
> On Nov 24, 11:13 am, Brian  wrote:
>
> > How did I miss this thread?  Is there an issue open already for this,
> > as per the Nov 21st post? I'll star it.
>
> > I'm still using 1.5.2 for dev, as it's the fastest way to iterate on a
> > non-jsonp app.  Basically you guys spoiled me with this bug/feature in
> > prior releases and using 1.5.3 and its slowdown to iterations just
> > sucks. No offense :)
>
> > Anyway, no, it doesn't cause more problems when deploying.  You find
> > out right away when you're running in webmode if you're violating SOP
> > as the browser complains or ignores the request (depends on the
> > browser). Violating SOP in hosted mode was a fantastic feature.
> > Having a console warning in hosted mode that a request is violating
> > sop should be enough.
>
> > On Nov 24, 11:02 am, Jason Essington 
> > wrote:
>
> > > Actually, allowing Hosted mode to violate SOP would lead to even more  
> > > problems come deployment time...
>
> > > The idea with hosted mode is that it mirrors an actual browser as  
> > > nearly as possible, so by breaking (not fixing) the SOP behavior,  
> > > developers are likely to run into issues where something works in  
> > > Hosted mode, but doesn't in Web mode. Definitely not desired behavior.
>
> > > If you have a situation were you need to connect to a serve that is  
> > > not well represented by the embedded tomcat server, then simply use -
> > > noserver and be done with it.
>
> > > I have a JEE backend, and even I have to use -noserver. In fact, I  
> > > would be willing to bet anyone that has an application that has  
> > > progressed beyond trivial (trial) client/server communication is using  
> > > Hosted mode with the -noserver switch. It is not a matter of the GWT  
> > > developers trying to screw non-JEE developers, but rather a matter of  
> > > not being able to provide an embedded server that is all things to all  
> > > people.
>
> > > -jason
>
> > > On Nov 21, 2008, at 2:23 PM, jpnet wrote:
>
> > > > This is not a feature! Please fix this.  Allow us developers to
> > > > violate the SOP via the Hosted-Mode browsers.  You are screwing your
> > > > developers that don't use J2EE on the backend.
>
> > > > -JP
>
> > > > On Nov 19, 7:33 pm, Sumit Chandel  wrote:
> > > >> Hi Danny,
>
> > > >> The issue you ran into is not actually a bug but an improvement in  
> > > >> 1.5.3 in
> > > >> terms of browser security compliance.
>
> > > >> Basically, the remote data you are fetching is indeed violating the  
> > > >> single
> > > >> origin policy, which is why you are seeing the error message come  
> > > >> up in the
> > > >> hosted mode console.
>
> > > >> The two ways to enable cross-site communication would be to use -
> > > >> noserver
> > > >> with a proxy that could delegate the calls or using the JSONP  
> > > >> technique.
> > > >> Both are described in a bit more detail on the Groups post linked  
> > > >> below:
>
> > > >>http://groups.google.com/group/Google-Web-Toolkit/browse_thread/
> > > >> threa...
>
> > > >> Hope that helps,
> > > >> -Sumit Chandel
>
> > > >> On Thu, Nov 13, 2008 at 5:05 PM, Danny  wrote:
>
> > > >>> Just thought I'd post an update...
>
> > > >>> I downgraded from 1.

an Email application

[Kedar]

Hi everyone.
Actually i am new to gwt world.
i have developed an simple application and now trying to put mail
facility for the same.
can you please guide me to add such facility to my application.

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Re: Announcing GWT 1.5.3

[andrew_lau]

I got this worked out using apache's reverse proxy module.

Workstation --> apache proxy ---> (rpc call?)
(192.168.2.2) |-- yes --> ejb server
  |-- no --> workstation port 

Basically, you just need to set up mod_proxy like this:

===
httpd.conf
==
ProxyRequests Off

Order deny,allow
Deny from all
allow from 192.168


ProxyPass /mywebmodule/gwt-rpc-service 
http://ejbserver.com/mywebmodule/gwt-rpc-service
ProxyPassReverse /mywebmodule/gwt-rpc-service
http://ejbserver.com/mywebmodule/gwt-rpc-service

ProxyPass /com.mygwtapp.UIModule http://192.168.2.2:/com.mygwtapp.UIModule
ProxyPassReverse /com.mygwtapp.UIModule 
http://192.168.2.2:/com.mygwtapp.UIModule



Please note that 192.168.2.2 is my workstation where I develop the
code. Thus, when I
start hosted mode in that box, the tomcat instance will listen to port
 of my
workstation.  Thus, this proxy server will contact the tomcat in my
workstation for
any queries that has /com.mygwtapp.UIModule in its path, and will
contact my real EJB
server, when the hosted mode browser does rpc call.

This way, it is "clean", the proxy server separate the calls for you.

Here is my hosted mode batch file:
@java -Xmx512M -cp
"%~dp0\src;%~dp0\bin;C:/javadev/lib/gwt-windows/gwt-user.jar;N:/
javadev/lib/gwt-maps.jar;C:/javadev/lib/gwt-windows/gwt-dev-
windows.jar"
com.google.gwt.dev.GWTShell -out "%~dp0\www" %*
http://theproxyserver/com.mygwtapp.UIModule/UIModule.html -whitelist
"^http[:][/][/]theproxyserver"


On Dec 12, 5:36 pm, Brad LaRonde  wrote:
> r3731 (merge of r3728) is the culprit:
>
> --- user/src/com/google/gwt/user/client/impl/HTTPRequestImplIE6.java
> +++ user/src/com/google/gwt/user/client/impl/HTTPRequestImplIE6.java
> @@ -24,6 +24,14 @@
>
>   �...@override
>    protected native JavaScriptObject doCreateXmlHTTPRequest() /*-{
> -    return new ActiveXObject("Microsoft.XMLHTTP");
> +    if ($wnd.XMLHttpRequest) {
> +      return new XMLHttpRequest();
> +    } else {
> +      try {
> +        return new ActiveXObject('MSXML2.XMLHTTP.3.0');
> +      } catch (e) {
> +        return new ActiveXObject("Microsoft.XMLHTTP");
> +      }
> +    }
>    }-*/;
>  }
>
> Revert and rebuild gwt-user.jar. Would be cool if there was a way to
> do it only for hosted mode.
>
> On Oct 20, 9:15 am, Brian  wrote:
>
> > I'm seeing a same-origin security restriction exception in 1.5.3 where
> > I didn't see it in 1.5.2. That is, I  can switch my project back and
> > forth between using 1.5.2 (no exception) and 1.5.3 (exception), with
> > the same source code.
>
> > I'm doing a RequestBuilder to "locahost:8080/url" in order to hit my
> > server to POST some data.
>
> > Means I'll be using 1.5.2 until I can figure out how to hit my local
> > server from 1.5.3.
>
> > Brian
>
> > On Oct 20, 11:17 am, "nicolas.deloof" 
> > wrote:
>
> > > Hi,
>
> > > for maven users, this release will be available via maven central
> > > repository in few hours (after rsync does its job).
>
> > > Nicolas
>
> > > On 18 oct, 00:22, Ray Ryan  wrote:
>
> > > > Hi, all.
>
> > > > We have just deprecated GWT 1.5.2, and replaced it with GWT 1.5.3.
> > > > This new release has a small handful of patches, mainly aimed at
> > > > fixing RPC problems with Android. You can download the update from the
> > > > usual location:
>
> > > >  http://code.google.com/webtoolkit/download.html
>
> > > > You may find that this pretty page hasn't updated yet in your neck of
> > > > the woods. If so, try going straight to the download 
> > > > server:http://code.google.com/p/google-web-toolkit/downloads/list.
>
> > > > Enjoy,
> > > > rjrjr
>
> > > > Release Notes for 1.5.3
>
> > > > Fixed Issues
>
> > > >  - RPC requests no longer fail on the embedded Android web browser
>
> > > >  - Leaf TreeItems now line up with their non-leaf siblings
>
> > > >  - Removing the last child node from a TreeItem no longer creates
> > > > extra margins on the left
>
> > > >  - HTTPRequest no longer uses POST instead of GET on some IE installs
> > > > because of incorrect XHR selection
>
> > > >  - Compiler now uses a more reliable check to prevent methods with
> > > > local variables from being inlined
> > > > getAbsoluteTop()/Left() can no longer return non-integral values
>
> > > >  - Time.valueOf() no longer fails to parse "08:00:00" or incorrectly
> > > > accepts "0xC:0xB:0xA".- Hide quoted text -
>
> > - Show quoted text -

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Re: same-origin security restriction

[andrew_lau]

I got this worked out using apache's reverse proxy module.


Workstation --> apache proxy ---> (rpc call?)
(192.168.2.2) |-- yes --> ejb server
  |-- no --> workstation port 

Basically, you just need to set up mod_proxy like this:

===
httpd.conf
==
ProxyRequests Off

Order deny,allow
Deny from all
allow from 192.168


ProxyPass /mywebmodule/gwt-rpc-service 
http://ejbserver.com/mywebmodule/gwt-rpc-service
ProxyPassReverse /mywebmodule/gwt-rpc-service 
http://ejbserver.com/mywebmodule/gwt-rpc-service

ProxyPass /com.mygwtapp.UIModule http://192.168.2.2:/com.mygwtapp.UIModule
ProxyPassReverse /com.mygwtapp.UIModule 
http://192.168.2.2:/com.mygwtapp.UIModule



Please note that 192.168.2.2 is my workstation where I develop the
code. Thus, when I start hosted mode in that box, the tomcat instance
will listen to port  of my workstation.  Thus, this proxy server
will contact the tomcat in my workstation for any queries that has /
com.mygwtapp.UIModule in its path, and will contact my real EJB
server, when the hosted mode browser does rpc call.

This way, it is "clean", the proxy server separate the calls for you.

Here is my hosted mode batch file:
@java -Xmx512M -cp "%~dp0\src;%~dp0\bin;C:/javadev/lib/gwt-windows/gwt-
user.jar;N:/javadev/lib/gwt-maps.jar;C:/javadev/lib/gwt-windows/gwt-
dev-windows.jar" com.google.gwt.dev.GWTShell -out "%~dp0\www" %*
http://theproxyserver/com.mygwtapp.UIModule/UIModule.html -whitelist
"^http[:][/][/]theproxyserver"


On Nov 25, 4:12 pm, Brian  wrote:
> Created issue 3131: (and 13's my lucky number... so close sorta..)
>
> http://code.google.com/p/google-web-toolkit/issues/detail?id=3131
>
> Please star it :-)
>
> On Nov 24, 11:13 am, Brian  wrote:
>
> > How did I miss this thread?  Is there an issue open already for this,
> > as per the Nov 21st post? I'll star it.
>
> > I'm still using 1.5.2 for dev, as it's the fastest way to iterate on a
> > non-jsonp app.  Basically you guys spoiled me with this bug/feature in
> > prior releases and using 1.5.3 and its slowdown to iterations just
> > sucks. No offense :)
>
> > Anyway, no, it doesn't cause more problems when deploying.  You find
> > out right away when you're running in webmode if you're violating SOP
> > as the browser complains or ignores the request (depends on the
> > browser). Violating SOP in hosted mode was a fantastic feature.
> > Having a console warning in hosted mode that a request is violating
> > sop should be enough.
>
> > On Nov 24, 11:02 am, Jason Essington 
> > wrote:
>
> > > Actually, allowing Hosted mode to violate SOP would lead to even more  
> > > problems come deployment time...
>
> > > The idea with hosted mode is that it mirrors an actual browser as  
> > > nearly as possible, so by breaking (not fixing) the SOP behavior,  
> > > developers are likely to run into issues where something works in  
> > > Hosted mode, but doesn't in Web mode. Definitely not desired behavior.
>
> > > If you have a situation were you need to connect to a serve that is  
> > > not well represented by the embedded tomcat server, then simply use -
> > > noserver and be done with it.
>
> > > I have a JEE backend, and even I have to use -noserver. In fact, I  
> > > would be willing to bet anyone that has an application that has  
> > > progressed beyond trivial (trial) client/server communication is using  
> > > Hosted mode with the -noserver switch. It is not a matter of the GWT  
> > > developers trying to screw non-JEE developers, but rather a matter of  
> > > not being able to provide an embedded server that is all things to all  
> > > people.
>
> > > -jason
>
> > > On Nov 21, 2008, at 2:23 PM, jpnet wrote:
>
> > > > This is not a feature! Please fix this.  Allow us developers to
> > > > violate the SOP via the Hosted-Mode browsers.  You are screwing your
> > > > developers that don't use J2EE on the backend.
>
> > > > -JP
>
> > > > On Nov 19, 7:33 pm, Sumit Chandel  wrote:
> > > >> Hi Danny,
>
> > > >> The issue you ran into is not actually a bug but an improvement in  
> > > >> 1.5.3 in
> > > >> terms of browser security compliance.
>
> > > >> Basically, the remote data you are fetching is indeed violating the  
> > > >> single
> > > >> origin policy, which is why you are seeing the error message come  
> > > >> up in the
> > > >> hosted mode console.
>
> > > >> The two ways to enable cross-site communication would be to use -
> > > >> noserver
> > > >> with a proxy that could delegate the calls or using the JSONP  
> > > >> technique.
> > > >> Both are described in a bit more detail on the Groups post linked  
> > > >> below:
>
> > > >>http://groups.google.com/group/Google-Web-Toolkit/browse_thread/
> > > >> threa...
>
> > > >> Hope that helps,
> > > >> -Sumit Chandel
>
> > > >> On Thu, Nov 13, 2008 at 5:05 PM, Danny  wrote:
>
> > > >>> Just thought I'd post an update...
>
> > > >>> I downgraded from

Displaying non-english characters inside widgets

[malikbster]

Hi, im new to GWT and im having problems in displaying non-english
characters. For example, im creating this menu bar and one of its
items' name has the spanish accent symbol over the "o" letter:

menu.addItem("Presentación", menuPresentacion);

The "ó" is displayed like a weird question mark inside a box when i
compile the project and load the html into firefox.

So what i do next is adding a "meta" statement into the html file that
is being load into the project.



This doesnt work either, get the same result. So next I try to convert
inside the java code every string into UTF-8 charset using URL
methods:

menu.addItem(URL.encode("Presentación"), menuPresentacion);

And now firefox shows it like this:

Presentaci%EF%BF%BDn

I also tried writting the strings inside the java code using HTML
notation for special characters:

menu.addItem("Presentación", menuPresentacion);

Doesnt work either.What is wrong whith this?

Thanks in advance.

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Get file from server with GWT-RPC

[Daniele B]

Hi.
I work on a photogallery application for my thesis.
I have a problem.
How can I do to retrieve image files stored on a server folder trought
GWT-RPC?

Thanks at all!
Sorry fo my english!!! :)

Daniele.

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Form submit

[Daniele B]

Hi.
I'm a newbie of GWT and not speaking english very well.
I have this portion of code of my thesis application:

[...]
private FileUpload fileUpload = new FileUpload();
private FormPanel formUpload = new FormPanel();
private Button loadButton = new Button("Load new image");
private Button addButton = new Button("Add new category");
private Label l = new Label();

public WebPhotoGalleryMenuPanel(){

//fileUpload.setName("imageUpload");
formUpload.setEncoding(FormPanel.ENCODING_MULTIPART);
formUpload.setMethod(FormPanel.METHOD_POST);
formUpload.setAction(GWT.getModuleBaseURL()+"UploadPhoto");

submit.addClickListener(this);
[...]

photoInfoPanel.add(new Label("Enter category: "));
TextBox categoryTextBox = new TextBox();

photoInfoPanel.add(categoryTextBox);
photoInfoPanel.add(new Label("Enter photo name: "));
photoInfoPanel.add(new TextBox());
photoInfoPanel.add(fileUpload);
photoInfoPanel.add(submit);
photoInfoPanel.add(cancel);
photoInfoPanel.setSpacing(3);

photoInfoContainer.add(photoInfoPanel);

formUpload.setWidget(photoInfoContainer);

When user click on submit button, the form is submitted to UploadPhoto
servlet.

How can I do get text of categoryTextBox on servlet?
Thanks.

Sorry fo my english!

Daniele.

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Re: Cannot run -shell

[Dmitri Don]

Perfectly worked for me. The only thing for ubuntu is to type:

sudo apt-get install libstdc++5

On Nov 25, 8:03 pm, Charlie Collins  wrote:
> apt-get install libstdc++5
>
> On Nov 25, 11:25 am, Goo  wrote:
>
> > I'm a beginner in Google Web Toolkit, and tried to implement
> > StockWatcher from Google Web Toolkit Tutorial. After generate
> > StockWatcher-shell and run it, I was complained about:
>
> > ===
> > **UnabletoloadMozillaforhostedmode**
> > java.lang.UnsatisfiedLinkError: /home/eric/gwt/mozilla-1.7.12/
> > libxpcom.so: libstdc++.so.5: cannot open shared object file: No such
> > file or directory
> >         at java.lang.ClassLoader$NativeLibrary.load(Native Method)
> >         at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1778)
> >         at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1674)
> >         at java.lang.Runtime.load0(Runtime.java:770)
> >         at java.lang.System.load(System.java:1005)
> >         at com.google.gwt.dev.shell.moz.MozillaInstall.load
> > (MozillaInstall.java:190)
> >         at com.google.gwt.dev.BootStrapPlatform.init(BootStrapPlatform.java:
> > 49)
> >         at com.google.gwt.dev.GWTShell.main(GWTShell.java:354)
> > ===
>
> > I run it on Ubuntu 8.10, My Java version is:
> > java version "1.6.0_10"
> > Java(TM) SE Runtime Environment (build 1.6.0_10-b33)
> > Java HotSpot(TM) Client VM (build 11.0-b15, mixedmode, sharing)
>
> > Anybody can advise?
>
> > Thanks

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large JSON requests & GWT

[ussuri]

Hello!

We've been happily using JSON technique described here:

http://code.google.com/support/bin/answer.py?answer=65632&topic=11368

for some time. However, as all data is send through an URL, which has
length limitations, this approach is not suitable for data-intensive
systems.

Question: is there another approach to performing cross-scripting JSON
requests with GWT that would allow large (100kb+) data transfers to
the server?

Alternatively, is there a way to enable cross-scripting in GWT debug
environment, as we are using GWT only for the front-end?

Thanks!

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Problem with non-english characters

[malikbster]

Hi, im new to GWT and im having problems in displaying non-english
characters. For example, im creating this menu bar and one of its
items' name has the spanish accent symbol over the "o" letter:

menu.addItem("Presentación", menuPresentacion);

The "ó" is displayed like a weird question mark inside a box when i
compile the project and load the html into firefox.

So what i do next is adding a "meta" statement into the html file that
is being load into the project.



This doesnt work either, get the same result. So next I try to convert
inside the java code every string into UTF-8 charset using URL
methods:

menu.addItem(URL.encode("Presentación"), menuPresentacion);

And now firefox shows it like this:

Presentaci%EF%BF%BDn

I also tried writting the strings inside the java code using HTML
notation for special characters:

menu.addItem("Presentación", menuPresentacion);

Doesnt work either.What is wrong whith this?

Thanks in advance.

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"Google Web Toolkit" group.
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Re: Exception handling in GWT Service

[Suri]

Correction - This line
 public void load(AsyncCallback>)

Is meant to be
 public void load(AsyncCallback> callback)

Thanks

On Dec 24, 11:23 am, Suri  wrote:
> Hey all,
> I was looking for a solution to theexceptionhandlingdescribed above
> and tried the technique suggested. However, when I implement theexceptionin 
> the onFailure method as shown, eclipse barfs and shows a
> "unhandledexceptiontype throwable" error at me. Same thing happens
> when I try to compile anyway.
>
> - I'm using GWT 1.5 and tried extending theexceptionwith bothExceptionas well 
> as SerializationException
> - Also, I'm implementing a fascade pattern as described in the GWT in
> Action Book for the RPC calls.
>
> Here's a scenario of what I'm trying
>
> public class MyRPCException extendsException
> {
>    // same definition ofexceptionas above really.
>
> }
>
> public interface MyRPCService
> {
>     ArrayList load() throws MyRPCException;
>
> }
>
> public interface MyRPCServiceAsync
> {
>    void load(AsyncCallback>);
>
> }
>
> public class MyRPCFascade
> {
>         private MyRPCFascade()   // singleton is used just didn't
> bother inserting code here because i think its irrelevant to the
> issue.
>     {
>         proxy = (MyRPCServiceAsync) GWT.create(MyRPCService.class);
>         ServiceDefTarget endPoint = (ServiceDefTarget) proxy;
>         endPoint.setServiceEntryPoint("/myRPCService");
>     }
>
>    public void load(AsyncCallback>)
>    {
>        proxy.load(callback);
>    }
>
> }
>
> --- Server side 
> public class MyRPCServiceImpl implements MyRPCService
> {
>   public ArrayList load() throws MyRPCExecption
>   {
>       try {.}
>       catch(SomeException e) { throw new MyRPCException(); }
>   }
>
> }
>
> - Client Side 
> myRPCFascade.load(new SomeTypeCallback() )
>
> class SomeTypeCallback implements AysncCallback>
> {
>    public void onSuccess(ArrayList result)
>   {
>          //         process result
>   }
>
>  public void onFailure(Throwable caught)
>  {
>      try
>      {
>          throw caught;                   //  This is where
> compilation Fails
>      }
>      catch(MyRPCException e)
>      {
>           Window.alert("DING");
>      }
>  }
>
> }
>
> Any ideas what I'm doing wrong?
>
> Thanks
>
> Suri
>
> On Nov 26, 11:08 pm, satya  wrote:
>
> > There is a SerializationException
>
> > (public class SerializationException
> > extends java.lang.Exception)   in gwt1.5.
>
> > SerializableException is depricated in 1.5
>
> > I shall try your suggestion of extending theExceptionor use the
> > SerilizationException and post the code here.
>
> > Thank you both for your help,
> > Appreciate it
> > Satya
>
> > On Nov 26, 12:54 pm, jossey  wrote:
>
> > > I am sorry... my bad... I read it as SerializationException
> > > Looked at the SerializableException in gwt... it is just anException
> > > implementing IsSerializable interface... so it all makes sense.
> > > Thanks Ravi for clarifying.
>
> > > BTW, in 1.5 gwt supports serialization of objects implementing
> > > java.io.Serializable.
> > > So just by extendingExceptionit would work.
>
> > > Thanks again,
> > > Jossey.
>
> > > On Nov 26, 8:56 am, Ravi M  wrote:
>
> > > > Jossey
>
> > > > Quite the contrary, actually. I started off with a customexception
> > > > which was merely a child class ofExceptionthat I intended to use in
> > > > RPC calls (i.e. service methods throw it). This actually didn't work
> > > > in the ways expected, i.e. when the server threw theexceptionI was
> > > > unable to retrieve theexceptionmessage in the client, or find out
> > > > what the cause was. Which is when some digging around revealed that if
> > > > you want to send theexceptionover the wire, it has to be a GWT
> > > > SerializableException.
>
> > > > This is with 1.4.6x, of course this may have changed in 1.5.x, I am
> > > > not sure.
>
> > > > Ravi
>
> > > > On Nov 26, 5:58 pm, jossey  wrote:
>
> > > > > Hi,
> > > > > Why are we extending SerializableException?
> > > > > Is that because the starting example had it so?
> > > > > I think it kinds of gives out a wrong message. ...
> > > > > just extendsExceptionshould do.
>
> > > > > not very relevant to the discussion anyways...
>
> > > > > Jossey.
>
> > > > > On Nov 25, 3:33 pm, Ravi M  wrote:
>
> > > > > > Ah me. Step 1 should read:
>
> > > > > > 1. Declare your RPCexceptionlike so:
>
> > > > > > public class MyRPCException extends SerializableException {
> > > > > >     public MyRPCException() {
> > > > > >         super();
> > > > > >     }
>
> > > > > >     public MyRPCException(String message) {
> > > > > >         super(message);
> > > > > >     }
>
> > > > > >     //... other stuff?
>
> > > > > > }
>
> > > > > > On Nov 26, 1:32 am, Ravi M  wrote:
>
> > > > > > > Satya,
>
> > > > > > > The following should work.
>
> > > > > > > 1. Declare your RPCexceptionlike so:
>
> > > > > > > public class MyRPCException extends SerializableException {
> > > > > > >     public TrackerRPCException()

Re: Exception handling in GWT Service

[Suri]

Hey all,
I was looking for a solution to the exception handling described above
and tried the technique suggested. However, when I implement the
exception in the onFailure method as shown, eclipse barfs and shows a
"unhandled exception type throwable" error at me. Same thing happens
when I try to compile anyway.

- I'm using GWT 1.5 and tried extending the exception with both
Exception as well as SerializationException
- Also, I'm implementing a fascade pattern as described in the GWT in
Action Book for the RPC calls.

Here's a scenario of what I'm trying

public class MyRPCException extends Exception
{
   // same definition of exception as above really.
}

public interface MyRPCService
{
ArrayList load() throws MyRPCException;
}

public interface MyRPCServiceAsync
{
   void load(AsyncCallback>);
}

public class MyRPCFascade
{
private MyRPCFascade()   // singleton is used just didn't
bother inserting code here because i think its irrelevant to the
issue.
{
proxy = (MyRPCServiceAsync) GWT.create(MyRPCService.class);
ServiceDefTarget endPoint = (ServiceDefTarget) proxy;
endPoint.setServiceEntryPoint("/myRPCService");
}

   public void load(AsyncCallback>)
   {
   proxy.load(callback);
   }
}

--- Server side 
public class MyRPCServiceImpl implements MyRPCService
{
  public ArrayList load() throws MyRPCExecption
  {
  try {.}
  catch(SomeException e) { throw new MyRPCException(); }
  }
}

- Client Side 
myRPCFascade.load(new SomeTypeCallback() )


class SomeTypeCallback implements AysncCallback>
{
   public void onSuccess(ArrayList result)
  {
 // process result
  }

 public void onFailure(Throwable caught)
 {
 try
 {
 throw caught;   //  This is where
compilation Fails
 }
 catch(MyRPCException e)
 {
  Window.alert("DING");
 }
 }
}

Any ideas what I'm doing wrong?


Thanks

Suri

On Nov 26, 11:08 pm, satya  wrote:
> There is a SerializationException
>
> (public class SerializationException
> extends java.lang.Exception)   in gwt1.5.
>
> SerializableException is depricated in 1.5
>
> I shall try your suggestion of extending theExceptionor use the
> SerilizationException and post the code here.
>
> Thank you both for your help,
> Appreciate it
> Satya
>
> On Nov 26, 12:54 pm, jossey  wrote:
>
> > I am sorry... my bad... I read it as SerializationException
> > Looked at the SerializableException in gwt... it is just anException
> > implementing IsSerializable interface... so it all makes sense.
> > Thanks Ravi for clarifying.
>
> > BTW, in 1.5 gwt supports serialization of objects implementing
> > java.io.Serializable.
> > So just by extendingExceptionit would work.
>
> > Thanks again,
> > Jossey.
>
> > On Nov 26, 8:56 am, Ravi M  wrote:
>
> > > Jossey
>
> > > Quite the contrary, actually. I started off with a customexception
> > > which was merely a child class ofExceptionthat I intended to use in
> > > RPC calls (i.e. service methods throw it). This actually didn't work
> > > in the ways expected, i.e. when the server threw theexceptionI was
> > > unable to retrieve theexceptionmessage in the client, or find out
> > > what the cause was. Which is when some digging around revealed that if
> > > you want to send theexceptionover the wire, it has to be a GWT
> > > SerializableException.
>
> > > This is with 1.4.6x, of course this may have changed in 1.5.x, I am
> > > not sure.
>
> > > Ravi
>
> > > On Nov 26, 5:58 pm, jossey  wrote:
>
> > > > Hi,
> > > > Why are we extending SerializableException?
> > > > Is that because the starting example had it so?
> > > > I think it kinds of gives out a wrong message. ...
> > > > just extendsExceptionshould do.
>
> > > > not very relevant to the discussion anyways...
>
> > > > Jossey.
>
> > > > On Nov 25, 3:33 pm, Ravi M  wrote:
>
> > > > > Ah me. Step 1 should read:
>
> > > > > 1. Declare your RPCexceptionlike so:
>
> > > > > public class MyRPCException extends SerializableException {
> > > > >     public MyRPCException() {
> > > > >         super();
> > > > >     }
>
> > > > >     public MyRPCException(String message) {
> > > > >         super(message);
> > > > >     }
>
> > > > >     //... other stuff?
>
> > > > > }
>
> > > > > On Nov 26, 1:32 am, Ravi M  wrote:
>
> > > > > > Satya,
>
> > > > > > The following should work.
>
> > > > > > 1. Declare your RPCexceptionlike so:
>
> > > > > > public class MyRPCException extends SerializableException {
> > > > > >     public TrackerRPCException() {
> > > > > >         super();
> > > > > >     }
>
> > > > > >     public MyRPCException(String message) {
> > > > > >         super(message);
> > > > > >     }
>
> > > > > >     //... other stuff?
>
> > > > > > }
>
> > > > > > 2. Declare your service method like so:
>
> > > > > > public SomeReturnedObject myServiceMethod(...arguments...) throws
> > > > > > MyRPCException;
>
> > > > > > 3. Declare your async service method like s

IllegalStateException (onDetach) in Internet Explorer 6 and 7

[Óscar Frías]

Hello.

We have detected that our web application throws this Exception
sometimes:

java.lang.IllegalStateException: Should only call onDetach when the
widget is attached to the browser's document

We detect these exceptions because we have implemented a custom
exception handler that reports exceptions from the browser to our
server (code at the end).
The problem is that although this happens quite frequently (we see
this in our logs), we do not know how to reproduce it.  According to
the logs timing it seems to happen (at least some of the times) when
leaving the page that contains the GWT app.  But we are not completely
sure about this.

Any idea about what could be happening, about the possible root cause,
or how to try to debug/fix it, etc. ?
Any help is appreciated.

More information:
- Exception is only thrown from IE6 and IE7 browsers
- This did not happen with GWT version 1.4.62.  It started happening
the same day we migrated to 1.5.3
- The widget that throws the exception is an HTMLPanel.  Its parent is
a Composite.

In case you are interested, this is the site with the error (the GWT
app is the flight results page):
http://www.trabber.com


/* Code to report exceptions to the server */
if (GWT.isScript()) {
GWT.setUncaughtExceptionHandler(new
GWT.UncaughtExceptionHandler() {
public void onUncaughtException(Throwable th) {
CommonService.App.getInstance().reportException
(th, myCallback);
}
});
}

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Re: How to clear History

[Charan]

Any help is appreciated hack to javascript variable thru JSNI

-Charan

On Dec 24, 2:24 pm, "kiran raj"  wrote:
> sorry then i think its not possible to do so.
>
> On Wed, Dec 24, 2008 at 2:44 PM, Charan  wrote:
>
> > I don't think such method in History class
>
> > =Charan
>
> > On Dec 24, 12:59 pm, "kiran raj"  wrote:
> >> did you try history.clear();
>
> >> On Wed, Dec 24, 2008 at 12:45 PM, Charan  wrote:
>
> >> > Hi,
>
> >> > After a long time after giving a message with similar question in
> >> > diffferent way to acheive
>
> >> > Is there any way to delete tokens which are added to HIstory using
> >> > History.newItem(), now i need to delete some tokens which i don't
> >> > need
>
> >> > can you give me any suggestion to acheive this, by overding
> >> > javascript , or JSON any suggestion will do
>
> >> > Thanks & regards
> >> > Charan
>
> >> > On Oct 30, 5:11 pm, "Ian Bambury"  wrote:
> >> >> OK,
> >> >> Well, that might indicate that you should redesign slightly so that you 
> >> >> only
> >> >> set it once :-) Re-initialising a number of times would suggest that 
> >> >> there
> >> >> is a better design somewhere - not always possible or practicable, I 
> >> >> know if
> >> >> you have an existing system.
>
> >> >> Or maybe you could save the token somewhere and only write it out when 
> >> >> the
> >> >> page is set up.
>
> >> >> *But*... if you write *exactly* the same token multiple times one after 
> >> >> the
> >> >> other, you should only get one history entry
>
> >> >> Ian
>
> >> >>http://examples.roughian.com
>
> >> >> 2008/10/30 Charan 
>
> >> >> > hi Ian,
> >> >> > Thanks for your quick reply.
> >> >> > Actually what i need is i am  storing the History tokens using
> >> >> > newItem(token) ,sometimes i am re intializing some part of code
> >> >> > several times where i am adding same token multiple times.
> >> >> > when i go back to that page it is having four tokens with the same
> >> >> > which i don't want.
>
> >> >> > On Oct 30, 4:33 pm, "Ian Bambury"  wrote:
> >> >> > > History is a function of the browser.
> >> >> > > If you could clear the history, you could stop people going back to 
> >> >> > > the
> >> >> > page
> >> >> > > they came from.
>
> >> >> > > Browsers tend to view this as not desirable.
>
> >> >> > > Ian
>
> >> >> > >http://examples.roughian.com
>
> >> >> > > 2008/10/30 Charan 
>
> >> >> > > > How to clear the tokens in History class , i didn't find any
> >> >> > > > removeToken/tokens methods in History class
>
> >> >> > > > can i know is there is any way to clear tokens  in history
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Re: What am I misunderstanding about the event model?

[David H. Cook]

Reinier -

Thank you, thank you, for the EXCELLENT explanation in
your posts to this thread.  I totally get it now.

I like especially that you point out that, given GWT objectives
and constraints, it is NOT necessarily the right tool for
all webapps.

I guess I made the correct decision, back when I finally just
changed my design to use the GWT APIs in a straight-forward
way (rather than 'hack' down in and expose leaks.
Now I get your earlier reference to 'LEAKY'.

One last thing someone could do is to PUBLISH this sort of
perspective...i.e. put it in overview docs where new prospective
developers are apt to find it.

Cheers...

Dave [the base-noter]

On Dec 23, 8:45 pm, Reinier Zwitserloot  wrote:
> As I said, "Event" is a low level class. You don't use it from java
> code, you use it from JSNI code. Another low level 'class' is the DOM
> class. It is a repository of loads of static utility methods (you
> don't ever do 'new DOM()', you just call DOM.someMethod()). Anything
> you can do with Event objects without resorting to JSNI is done with
> the various methods in the DOM class that start with 'event'. For
> example, to get the thing that the event happened for, you use
> DOM.eventGetTarget(Event e). However, this returns an Element, which
> is another low level class. Elements, just like Events and
> JavaScriptObjects, don't have any useful methods for java GWT code.
> They are plenty useful when transported to JSNI methods, and there are
> plenty of methods in the DOM class that work on Elements. Generally,
> widgets CONTAIN an Element, so its not easy to go from Element to the
> widget it belongs to, which is why you're having so much trouble.
>
> Screwing about with DOM and Element will result in GWT projects that
> leak memory, especially on IE, unless you -really- know what you are
> doing. For example, if you add a listener yourself, you have to be
> very careful in removing it at the right time or the listener, and in
> turn every object it points at (and every object those objects point
> at, etcetera) are stuck in the browser forever (well, until the user
> closes the browser or the window with your app in it, but for a
> webapp, that's what 'forever' means, really).
>
> On Dec 24, 1:57 am, "David Hoffer"  wrote:
>
> > In my case I need to support right click in Tree widgets so the global
> > option doesn't help.  I'm willing to live with limited browser support if I
> > can convert the Event returned via onBrowserEvent() to a TreeItem.
>
> > -Dave
>
> > On Tue, Dec 23, 2008 at 3:49 PM, lukehashj  wrote:
>
> > > Those lego pieces are the special get a box of em for 20 bucks pieces
> > > -
>
> > > To implement this functionality I would use a little bit of JSNI and
> > > the onContextMenu functionality.
>
> > > Open up your module's main .html file and locate your body element.
> > > Add onContextMenu='someJavaScriptFunction()' to it.
>
> > > Next, add a function
> > > someJavaScriptFunction(){ execute JSNI here } to the inner
> > > HTML of the head element and you are set!
>
> > > If you've not read about JSNI, here is a good resource:
> > >http://code.google.com/support/bin/answer.py?answer=75695&topic=10213
>
> > > Obviously, this is a global solution - usually used to display an
> > > alternate context menu. If you're trying to implement right-click for
> > > a particular element that's a little bit more tricky and less reliable
> > > across browsers.
>
> > > On Dec 23, 3:23 pm, "David Hoffer"  wrote:
> > > > Sounds good, I'll try that for DoubleClickEventListener.
>
> > > > What lego pieces would you use to implement RightClickEventListener?
>
> > > > -Dave
>
> > > > On Tue, Dec 23, 2008 at 2:59 PM, lukehashj  wrote:
>
> > > > > If you want the double-click event, create a DoubleClickEventListener
> > > > > that extends ClickListener. When the click event is fired a timer is
> > > > > started - if they click again before the timer executes, the
> > > > > onDoubleClick event fires. Otherwise, it's just treated as a single
> > > > > click. Using this mechanism, you can adjust the speed at which the
> > > > > user must double-click for you to get the event. This can be helpful
> > > > > in improving your websites accessibility (ease of navigation, etc).
> > > > > This also allows you to add a DoubleClickListener to any class that
> > > > > implements the SourcesClickEvents class.
>
> > > > > If you are rolling your own horizontal/vertical panels you're
> > > > > approaching composition from the completely wrong direction.
> > > > > You should probably create a class that extends Composite but includes
> > > > > all the functionality that you would have added to the base GWT class
> > > > > (es) and calls initWidget(on a horizontalPanel). Or, simply extend the
> > > > > GWT class and add the missing/desired functionality to it.
>
> > > > > The GWT widget/event classes are like legos - use the small parts to
> > > > > build a greater cohesive structure. Don't plan on the legos coming out
> >

Re: Need for a great GWT GUI library

[flash]

GWT-Ext (http://code.google.com/p/gwt-ext/) looked very promising. I
downloaded it to try it out. However it needs ExtJS and thats where
all the licensing troubles came to light. In the end, it looks like
you can get a version of the dependent javascript library somehow. But
with all the issues surrounding it, I wasn't sure what the future of
it was.

I finally gave up with these libraries and am sticking to core GWT
widgets for now. Unless I absolutely have to have a component from one
of these libraries, I won't be looking for one. They all have their
quirks or programming models that you need to understand to use them
effectively.
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Re: Suggestions for improving GWT group

[Lothar Kimmeringer]

Isaac Truett schrieb:
> If you want a newsgroup, why don't you go start a newsgroup?

Actually there is no need to. There is already a hierarchy
present that covers GWT: comp.lang.java.*
Also there are other groups available e.g. in Germany
(de.comp.lang.java) where GWT-questions could be answered.

> There are
> plenty of mediums for information about GWT that aren't maintained by
> Google. No reason you can't create another one.

If there is enough traffic in one or more of the above mentioned
groups, it shouldn't be a problem asking for the creation
of another group e.g. comp.lang.java.gwt. The advantage of
moving to a newsgroup would be that discussions about e.g.
GWT-ext or "how do I create a servlet" are not automatically
off topic or can be redirected into another newsgroup that
covers that topic.

Personally I don't have a problem with this group I just don't
see a way to "improve" the group by introducing tags, experience-
level-informations or votes to the system because the "advanced"
users I assume are using the group as maillist anyway (where
you will never see the last two informations) and tags don't
work for most of the posts you see in this group asked by
people who are new to the group (it has been tried in enough
newsgroups I'm subscribed to without helping anything).

Maybe it would be start to actively redirect questions to one
of the beforementioned groups instead of answering them here.


Regards, Lothar

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Re: Suggestions for improving GWT group

[Lothar Kimmeringer]

Ian Bambury schrieb:
> 
> 2008/12/23 Lothar Kimmeringer  >
> 
> ... From the general point of view of
> the regular Google Groups user who is accessing the group with the
> web-browser like a web-forum ...
> 
> 
> Is that actually the case? (I assume that by 'regular' you mean
> 'average' rather than to a fixed pattern.)

I assumed that by following past discussions where the moderator
of the group was asked to remove posts containing personal insults.

If you - like me - use the group as maillist, you wouldn't come
to the idea of asking that, because already sent mails can't be
removed by the sender afterwards.

> Personally, I almost never visit the group, I just filter the emails via
> Gmail to a label. Due to the prepoderance of gmail addresses, I've
> always assumed that a fair number of others do to.

I'm not using GMail (I try to keep some privacy) so I don't know
what is possible there but I'm doing the same and let the mail-
reader do a move of the mail into a subfolder of my inbox but
still you have a lot of mails.


Regards, Lothar

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i can't see the bottom component of VerticalPanel when it's minimized

[arnaud]

Hello every one,
i have a verticalPanel in which i put a  lot of component.When my
panel is minimize i don't see all of the components but when it's
maximize i can see all of them;So what can i do to see the bottom
components when it's minimized?
Thanks you
Arnaud
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Re: How can do mapping for another servlet

[Kevin Tarn]

There is no difference of mapping servlet or GWT-RPC. You can do the same
way to map your servlet in gwt.xml.

Kevin

On Wed, Dec 24, 2008 at 1:44 PM, avd  wrote:

>
> Hello sir,
> Thanks to GWT froups to solve my privious problems,really its very
> helpful to develop my project.
> now i have an another problem-I have two programs First is applet and
> Second is a servlet i using it for upload a image to server side.i had
> intregate applet in gwt by using Applet Intregration module but how
> can i use my servlet because in gwt.xml file i can only mapping for
> serviceImpl file.so please help me for mapping another servlet in gwt.
>
>
> with regards
> avdhesh
> >
>

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Re: How to clear History

[kiran raj]

sorry then i think its not possible to do so.

On Wed, Dec 24, 2008 at 2:44 PM, Charan  wrote:
>
> I don't think such method in History class
>
> =Charan
>
> On Dec 24, 12:59 pm, "kiran raj"  wrote:
>> did you try history.clear();
>>
>> On Wed, Dec 24, 2008 at 12:45 PM, Charan  wrote:
>>
>> > Hi,
>>
>> > After a long time after giving a message with similar question in
>> > diffferent way to acheive
>>
>> > Is there any way to delete tokens which are added to HIstory using
>> > History.newItem(), now i need to delete some tokens which i don't
>> > need
>>
>> > can you give me any suggestion to acheive this, by overding
>> > javascript , or JSON any suggestion will do
>>
>> > Thanks & regards
>> > Charan
>>
>> > On Oct 30, 5:11 pm, "Ian Bambury"  wrote:
>> >> OK,
>> >> Well, that might indicate that you should redesign slightly so that you 
>> >> only
>> >> set it once :-) Re-initialising a number of times would suggest that there
>> >> is a better design somewhere - not always possible or practicable, I know 
>> >> if
>> >> you have an existing system.
>>
>> >> Or maybe you could save the token somewhere and only write it out when the
>> >> page is set up.
>>
>> >> *But*... if you write *exactly* the same token multiple times one after 
>> >> the
>> >> other, you should only get one history entry
>>
>> >> Ian
>>
>> >>http://examples.roughian.com
>>
>> >> 2008/10/30 Charan 
>>
>> >> > hi Ian,
>> >> > Thanks for your quick reply.
>> >> > Actually what i need is i am  storing the History tokens using
>> >> > newItem(token) ,sometimes i am re intializing some part of code
>> >> > several times where i am adding same token multiple times.
>> >> > when i go back to that page it is having four tokens with the same
>> >> > which i don't want.
>>
>> >> > On Oct 30, 4:33 pm, "Ian Bambury"  wrote:
>> >> > > History is a function of the browser.
>> >> > > If you could clear the history, you could stop people going back to 
>> >> > > the
>> >> > page
>> >> > > they came from.
>>
>> >> > > Browsers tend to view this as not desirable.
>>
>> >> > > Ian
>>
>> >> > >http://examples.roughian.com
>>
>> >> > > 2008/10/30 Charan 
>>
>> >> > > > How to clear the tokens in History class , i didn't find any
>> >> > > > removeToken/tokens methods in History class
>>
>> >> > > > can i know is there is any way to clear tokens  in history
> >
>

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Re: How to clear History

[Charan]

I don't think such method in History class

=Charan

On Dec 24, 12:59 pm, "kiran raj"  wrote:
> did you try history.clear();
>
> On Wed, Dec 24, 2008 at 12:45 PM, Charan  wrote:
>
> > Hi,
>
> > After a long time after giving a message with similar question in
> > diffferent way to acheive
>
> > Is there any way to delete tokens which are added to HIstory using
> > History.newItem(), now i need to delete some tokens which i don't
> > need
>
> > can you give me any suggestion to acheive this, by overding
> > javascript , or JSON any suggestion will do
>
> > Thanks & regards
> > Charan
>
> > On Oct 30, 5:11 pm, "Ian Bambury"  wrote:
> >> OK,
> >> Well, that might indicate that you should redesign slightly so that you 
> >> only
> >> set it once :-) Re-initialising a number of times would suggest that there
> >> is a better design somewhere - not always possible or practicable, I know 
> >> if
> >> you have an existing system.
>
> >> Or maybe you could save the token somewhere and only write it out when the
> >> page is set up.
>
> >> *But*... if you write *exactly* the same token multiple times one after the
> >> other, you should only get one history entry
>
> >> Ian
>
> >>http://examples.roughian.com
>
> >> 2008/10/30 Charan 
>
> >> > hi Ian,
> >> > Thanks for your quick reply.
> >> > Actually what i need is i am  storing the History tokens using
> >> > newItem(token) ,sometimes i am re intializing some part of code
> >> > several times where i am adding same token multiple times.
> >> > when i go back to that page it is having four tokens with the same
> >> > which i don't want.
>
> >> > On Oct 30, 4:33 pm, "Ian Bambury"  wrote:
> >> > > History is a function of the browser.
> >> > > If you could clear the history, you could stop people going back to the
> >> > page
> >> > > they came from.
>
> >> > > Browsers tend to view this as not desirable.
>
> >> > > Ian
>
> >> > >http://examples.roughian.com
>
> >> > > 2008/10/30 Charan 
>
> >> > > > How to clear the tokens in History class , i didn't find any
> >> > > > removeToken/tokens methods in History class
>
> >> > > > can i know is there is any way to clear tokens  in history
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