Re: need please wait notice for slow loading pages
I implemented something js based here: http://www.resa-air.com/a5/be while wanting for the flights results to come up. Len www.len.ro On Wed, 2006-12-06 at 13:07 -0800, Sam Gendler wrote: Does anyone have a mechanism for displaying some kind of please wait mechanism while waiting for a slow loading page to be rendered? I can think of a couple of potential solutions: 1. Submit form, have listener send to a please wait page which does nothing but send another request which will actually load the page in question. The problems with this include pages that require lots of data in the form submission. I'd have to stick it in the session or throw it in a hidden form. If it is a lot of data, it could be quite slow. No control over when the browser stops displaying the message - usually first byte in. If there is network latency, that could still leave several seconds without the message in view. 2. If Tapestry supports it, I can render the header of the page, including a div that says please wait, then flush to the browser before initializing the model. At the end of the page, render some js that will hide the div. Only problem here is flushing before the page is completely rendered. Is this possible in Tapestry? Note: I cannot use an ajax update of the entire page and use the effects available in an AjaxForm to render the message. At least, I don't think I can. I haven't done an analysis of the pages in question, but I'd really prefer top have my solution work on any page, rather than just on ajax-y ones. It would, however, be nice to have a solution which looks the same whether dong an ajax update (using preEffect and effect) and when doing a full page reload after a normal POST. Thanks --sam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: need please wait notice for slow loading pages
Hi.. and how did you get this working? thx stefan Marilen Corciovei wrote: I implemented something js based here: http://www.resa-air.com/a5/be while wanting for the flights results to come up. Len www.len.ro On Wed, 2006-12-06 at 13:07 -0800, Sam Gendler wrote: Does anyone have a mechanism for displaying some kind of please wait mechanism while waiting for a slow loading page to be rendered? I can think of a couple of potential solutions: 1. Submit form, have listener send to a please wait page which does nothing but send another request which will actually load the page in question. The problems with this include pages that require lots of data in the form submission. I'd have to stick it in the session or throw it in a hidden form. If it is a lot of data, it could be quite slow. No control over when the browser stops displaying the message - usually first byte in. If there is network latency, that could still leave several seconds without the message in view. 2. If Tapestry supports it, I can render the header of the page, including a div that says please wait, then flush to the browser before initializing the model. At the end of the page, render some js that will hide the div. Only problem here is flushing before the page is completely rendered. Is this possible in Tapestry? Note: I cannot use an ajax update of the entire page and use the effects available in an AjaxForm to render the message. At least, I don't think I can. I haven't done an analysis of the pages in question, but I'd really prefer top have my solution work on any page, rather than just on ajax-y ones. It would, however, be nice to have a solution which looks the same whether dong an ajax update (using preEffect and effect) and when doing a full page reload after a normal POST. Thanks --sam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/need-%22please-wait%22-notice-for-slow-loading-pages-tf2770707.html#a7735720 Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: need please wait notice for slow loading pages
The concept is simple. You have 2 pages. The one from which you go and the one which is supposed to follow which is rather slow. The first page contains a hidden div which gets visible when the user submits the form. This div is the one which you see with the animated gif. When the slow page has finished it's load it will replace the first page. This is based on the fact that the browser will keep the old page until the new one is loaded. input jwcid=@Submit listener=ognl:listeners.validateAction value=message:validate onClick=doWait(this, false); / The doWait just shows the hidden div/iframe. The only complicated part was to make the div/iframe about the combo boxes. If this is what you need I could create a working simple example. Len www.len.ro On Thu, 2006-12-07 at 01:24 -0800, Stefan Esterer wrote: Hi.. and how did you get this working? thx stefan Marilen Corciovei wrote: I implemented something js based here: http://www.resa-air.com/a5/be while wanting for the flights results to come up. Len www.len.ro On Wed, 2006-12-06 at 13:07 -0800, Sam Gendler wrote: Does anyone have a mechanism for displaying some kind of please wait mechanism while waiting for a slow loading page to be rendered? I can think of a couple of potential solutions: 1. Submit form, have listener send to a please wait page which does nothing but send another request which will actually load the page in question. The problems with this include pages that require lots of data in the form submission. I'd have to stick it in the session or throw it in a hidden form. If it is a lot of data, it could be quite slow. No control over when the browser stops displaying the message - usually first byte in. If there is network latency, that could still leave several seconds without the message in view. 2. If Tapestry supports it, I can render the header of the page, including a div that says please wait, then flush to the browser before initializing the model. At the end of the page, render some js that will hide the div. Only problem here is flushing before the page is completely rendered. Is this possible in Tapestry? Note: I cannot use an ajax update of the entire page and use the effects available in an AjaxForm to render the message. At least, I don't think I can. I haven't done an analysis of the pages in question, but I'd really prefer top have my solution work on any page, rather than just on ajax-y ones. It would, however, be nice to have a solution which looks the same whether dong an ajax update (using preEffect and effect) and when doing a full page reload after a normal POST. Thanks --sam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: need please wait notice for slow loading pages
Hi! thx for your helpful description! if you cound create a little simple example it would be great. thx for your effort stefan Marilen Corciovei wrote: The concept is simple. You have 2 pages. The one from which you go and the one which is supposed to follow which is rather slow. The first page contains a hidden div which gets visible when the user submits the form. This div is the one which you see with the animated gif. When the slow page has finished it's load it will replace the first page. This is based on the fact that the browser will keep the old page until the new one is loaded. input jwcid=@Submit listener=ognl:listeners.validateAction value=message:validate onClick=doWait(this, false); / The doWait just shows the hidden div/iframe. The only complicated part was to make the div/iframe about the combo boxes. If this is what you need I could create a working simple example. Len www.len.ro On Thu, 2006-12-07 at 01:24 -0800, Stefan Esterer wrote: Hi.. and how did you get this working? thx stefan Marilen Corciovei wrote: I implemented something js based here: http://www.resa-air.com/a5/be while wanting for the flights results to come up. Len www.len.ro On Wed, 2006-12-06 at 13:07 -0800, Sam Gendler wrote: Does anyone have a mechanism for displaying some kind of please wait mechanism while waiting for a slow loading page to be rendered? I can think of a couple of potential solutions: 1. Submit form, have listener send to a please wait page which does nothing but send another request which will actually load the page in question. The problems with this include pages that require lots of data in the form submission. I'd have to stick it in the session or throw it in a hidden form. If it is a lot of data, it could be quite slow. No control over when the browser stops displaying the message - usually first byte in. If there is network latency, that could still leave several seconds without the message in view. 2. If Tapestry supports it, I can render the header of the page, including a div that says please wait, then flush to the browser before initializing the model. At the end of the page, render some js that will hide the div. Only problem here is flushing before the page is completely rendered. Is this possible in Tapestry? Note: I cannot use an ajax update of the entire page and use the effects available in an AjaxForm to render the message. At least, I don't think I can. I haven't done an analysis of the pages in question, but I'd really prefer top have my solution work on any page, rather than just on ajax-y ones. It would, however, be nice to have a solution which looks the same whether dong an ajax update (using preEffect and effect) and when doing a full page reload after a normal POST. Thanks --sam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/need-%22please-wait%22-notice-for-slow-loading-pages-tf2770707.html#a7736096 Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat hangs - Tapestry issue or what?
If you're running on Java 5, fire up Jconsole and have a look at Threads Tab. It'll tell you where your threads are hanging. A common problem is leaking pooled Db-connections - but that's only a guess. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Malin Ljungh Sent: Thursday, December 07, 2006 9:20 AM To: Tapestry users Subject: Tomcat hangs - Tapestry issue or what? Hi all! I have prolem with my Tomcat hangs (sometimes). I can see the following in my logs: Dec 6, 2006 4:43:13 PM org.apache.tomcat.util.threads.ThreadPool logFull SEVERE: All threads (10) are currently busy, waiting. Increase maxThreads (10) or check the servlet status But it occurres even on very low load (one or two users) so I assume it's something wrong here... requests not ending correctly or something. When it works it works very rapidly so it shouldn't be what I do in the request that is the issue. I really don't believe it's a Tapestry issure but I thought I'd ask here anyway.. Maybe someone has experienced the same problem? Anyone? /Malin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Node not found... any1 :( ? helpp
Hi,
Ok it is actually quite ez to reproduce...
@EventListener(targets=chapterChooser,events=onchange,submitForm=f1,async=true)
public void getDistricts(IRequestCycle cycle){
String a = this.getFormA().getChapter();
ArrayList t = new ArrayList();
t = c.getDistricts(a);
districtModel = new ValueLabelPropertySelectionModel(t);
setDistrictModel(districtModel);
cycle.getResponseBuilder().updateComponent(districtChooser);
}
I am using firefox browser
I notice the problem happen in
cycle.getResponseBuilder().updateComponent(districtChooser); line
the fatal exception did not appear after I commented that line... : (
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Re: Tomcat hangs - Tapestry issue or what?
Thanks Marcus! The thing is I'm running on hosted environment, I have only an SSH prompt. I'll see if I can reproduce the problem on my local machine and use the Jconsole. For DB access I use Hibernate so I hope it's not leaking db-connections. On 12/7/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: If you're running on Java 5, fire up Jconsole and have a look at Threads Tab. It'll tell you where your threads are hanging. A common problem is leaking pooled Db-connections - but that's only a guess. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Malin Ljungh Sent: Thursday, December 07, 2006 9:20 AM To: Tapestry users Subject: Tomcat hangs - Tapestry issue or what? Hi all! I have prolem with my Tomcat hangs (sometimes). I can see the following in my logs: Dec 6, 2006 4:43:13 PM org.apache.tomcat.util.threads.ThreadPool logFull SEVERE: All threads (10) are currently busy, waiting. Increase maxThreads (10) or check the servlet status But it occurres even on very low load (one or two users) so I assume it's something wrong here... requests not ending correctly or something. When it works it works very rapidly so it shouldn't be what I do in the request that is the issue. I really don't believe it's a Tapestry issure but I thought I'd ask here anyway.. Maybe someone has experienced the same problem? Anyone? /Malin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: Re: Custom validator not called when value is empty?
Yeah, you should inject a ValidationDelegate into your page and pass
it to your form as the delegate. Then, you can stick any arbitrary
error messages in the delegate, attached to particular fields or not.
So long as your error handling in the template renders every error,
rather than just the first one, you should see it, and if you attached
the error to a field, the field will be marked as being in error (the
default is to slap a couple of asterisks after it and place the field
in a div marked with a red class, if I remember correctly). Any
messages from validation or translation errors are also automatically
added to the delegate. There are some nice examples of this in the
freely available chapters (chapter 3, specifically) of the Enjoy Web
Development with Tapestry e-book.
--sam
On 12/6/06, Malin Ljungh [EMAIL PROTECTED] wrote:
Guys - you're great!
Acually Sam was right - by overriding the getAcceptsNull in my validator and
returning true did the trick.
I also tried overriding the isRequired method but this method never gets
called it seems (?)
Though - the other solution from Francesco is very intresting also!
But I don't really get it - I don't have the getDelegate method in my
page... is there some injection missing here, or how do I do it?
Malin
On 12/5/06, Sam Gendler [EMAIL PROTECTED] wrote:
Yes, even if you can't get your validator itself to work (and you
should be able to), you should definitely just add an error message to
your existing validation delegate, rather than making a custom method
for each field you want to validate. That will allow your standard
error handling mechanism in the view to render the error rather than
requiring special conditionals within your template.
--sam
On 12/4/06, fdegrassi [EMAIL PROTECTED] wrote:
I think you can add custom validation messages to your
ValidationDelegate and display them along with your validators errors.
It should work more or less like this.
public void doRegister() {
if (getStart() getStop()) {
getDelegate().record(getStartField(), Start should be less than
Stop);
return;
}
if (getDelegate().getHasErrors())
return;
// to register stuff
// ..
}
Good luck
Francesco Degrassi
Malin Ljungh wrote:
Thank you guys! You've been very helpful.
I now make the validation in submit but it's not pretty; in the submit
listener I have this:
if(!validateFieldX()) {
setFieldXValid(false);
return null;
}
and in the html I have an @If to display validation message if
validation
has failed.
Is there a neater way or is this how it is done?
Malin
On 12/3/06, Sam Gendler [EMAIL PROTECTED] wrote:
Why not just build the set of validators for the field dynamically?
Assuming you can determine whether the field should be required by
the
time the field rewinds (rather than being dependant on something not
yet rewound), then you can include the required validator in the list
only if it is actually required. However, since the 'required'
validator is obviously called whether the field has a value or not, I
would suggest taking a look at the source for that validator to
determine where you have gone wrong with yours. It is clearly
possible. Without seeing your source, that's about the best I can
suggest.
--sam
On 12/2/06, Malin Ljungh [EMAIL PROTECTED] wrote:
Good evening!
I have written my own validator which works excellent - as long as
a
value
is submitted in the field to be validated. Have I missed something
here?
What should I do?
To add a required validator may seem to be the obvious solution but
the
thing is that the field is not always required - it depends.
Cheers
Malin
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Re: need please wait notice for slow loading pages
Here it is: http://www.len.ro/work/articles/please-wait-tapestry-component/view hope it helps, Len On Thu, 2006-12-07 at 01:53 -0800, Stefan Esterer wrote: Hi! thx for your helpful description! if you cound create a little simple example it would be great. thx for your effort stefan Marilen Corciovei wrote: The concept is simple. You have 2 pages. The one from which you go and the one which is supposed to follow which is rather slow. The first page contains a hidden div which gets visible when the user submits the form. This div is the one which you see with the animated gif. When the slow page has finished it's load it will replace the first page. This is based on the fact that the browser will keep the old page until the new one is loaded. input jwcid=@Submit listener=ognl:listeners.validateAction value=message:validate onClick=doWait(this, false); / The doWait just shows the hidden div/iframe. The only complicated part was to make the div/iframe about the combo boxes. If this is what you need I could create a working simple example. Len www.len.ro On Thu, 2006-12-07 at 01:24 -0800, Stefan Esterer wrote: Hi.. and how did you get this working? thx stefan Marilen Corciovei wrote: I implemented something js based here: http://www.resa-air.com/a5/be while wanting for the flights results to come up. Len www.len.ro On Wed, 2006-12-06 at 13:07 -0800, Sam Gendler wrote: Does anyone have a mechanism for displaying some kind of please wait mechanism while waiting for a slow loading page to be rendered? I can think of a couple of potential solutions: 1. Submit form, have listener send to a please wait page which does nothing but send another request which will actually load the page in question. The problems with this include pages that require lots of data in the form submission. I'd have to stick it in the session or throw it in a hidden form. If it is a lot of data, it could be quite slow. No control over when the browser stops displaying the message - usually first byte in. If there is network latency, that could still leave several seconds without the message in view. 2. If Tapestry supports it, I can render the header of the page, including a div that says please wait, then flush to the browser before initializing the model. At the end of the page, render some js that will hide the div. Only problem here is flushing before the page is completely rendered. Is this possible in Tapestry? Note: I cannot use an ajax update of the entire page and use the effects available in an AjaxForm to render the message. At least, I don't think I can. I haven't done an analysis of the pages in question, but I'd really prefer top have my solution work on any page, rather than just on ajax-y ones. It would, however, be nice to have a solution which looks the same whether dong an ajax update (using preEffect and effect) and when doing a full page reload after a normal POST. Thanks --sam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: Tomcat hangs - Tapestry issue or what?
if you have ssh access, then you can easily connect Jconsole to your application via an ssh tunnel. Ssh allows you to set up a port on your local machine which will simple transfer every byte received across the ssh connection to any arbitrary port and host on the other side of the connection. don't know anything about Jconsole, but as a generic example, let's pretend Jconsol needs to connect to your server on port 8081. In that case, you would run the following command on your local machine: ssh -L8081:localhost:8081 my.remotehost.com This will cause any connection to port 8081 on your local machine (the first 8081) to be tunneled through the connection to port 8081 on a machine called localhost at the other end of the connection. In this case, that means the machine you are ssh'd into. You could also give a hostname which would be resolved on the server machine, so you can use hostnames that aren't available to the internet itself. Now, you can just tell Jconsole to connect to localhost on port 8081 and all of its traffic will magically cross your ssh tunnel. You can tunnel anything through ssh this way. It is VERY handy when dealing with remote hosts, particularly if you've got a network of machines that are not directly accessible to the internet. Open up ssh on one machine with limited functionality/accessibility and you can then have access to every other machine it can see, including those it shares the 'secured' network with, even if you need more than terminal access. You can even tunnel X across such a connection, allowing you to run gui apps on your remote hosts. A crucial ability when you get an app that requires X in order to run the installer (not as rare as you'd think). This should also work for remote debugging, incidentally. --sam On 12/7/06, Malin Ljungh [EMAIL PROTECTED] wrote: Thanks Marcus! The thing is I'm running on hosted environment, I have only an SSH prompt. I'll see if I can reproduce the problem on my local machine and use the Jconsole. For DB access I use Hibernate so I hope it's not leaking db-connections. On 12/7/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: If you're running on Java 5, fire up Jconsole and have a look at Threads Tab. It'll tell you where your threads are hanging. A common problem is leaking pooled Db-connections - but that's only a guess. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Malin Ljungh Sent: Thursday, December 07, 2006 9:20 AM To: Tapestry users Subject: Tomcat hangs - Tapestry issue or what? Hi all! I have prolem with my Tomcat hangs (sometimes). I can see the following in my logs: Dec 6, 2006 4:43:13 PM org.apache.tomcat.util.threads.ThreadPool logFull SEVERE: All threads (10) are currently busy, waiting. Increase maxThreads (10) or check the servlet status But it occurres even on very low load (one or two users) so I assume it's something wrong here... requests not ending correctly or something. When it works it works very rapidly so it shouldn't be what I do in the request that is the issue. I really don't believe it's a Tapestry issure but I thought I'd ask here anyway.. Maybe someone has experienced the same problem? Anyone? /Malin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: need please wait notice for slow loading pages
I thought about doing that, but I wasn't convinced I could rely on all browsers leaving the page visible until it received content for the next page. Have you used this in IE 6 and 7, Firefox 1.5 and 2, and Safari 2 by any chance? If not, I guess I'll check it out. It's probably more typing than my solution because of the number of onClick handlers I'll have to add, but it is a lot simpler and less likely to have side effects. Thanks. --sam On 12/7/06, Marilen Corciovei [EMAIL PROTECTED] wrote: Here it is: http://www.len.ro/work/articles/please-wait-tapestry-component/view hope it helps, Len On Thu, 2006-12-07 at 01:53 -0800, Stefan Esterer wrote: Hi! thx for your helpful description! if you cound create a little simple example it would be great. thx for your effort stefan Marilen Corciovei wrote: The concept is simple. You have 2 pages. The one from which you go and the one which is supposed to follow which is rather slow. The first page contains a hidden div which gets visible when the user submits the form. This div is the one which you see with the animated gif. When the slow page has finished it's load it will replace the first page. This is based on the fact that the browser will keep the old page until the new one is loaded. input jwcid=@Submit listener=ognl:listeners.validateAction value=message:validate onClick=doWait(this, false); / The doWait just shows the hidden div/iframe. The only complicated part was to make the div/iframe about the combo boxes. If this is what you need I could create a working simple example. Len www.len.ro On Thu, 2006-12-07 at 01:24 -0800, Stefan Esterer wrote: Hi.. and how did you get this working? thx stefan Marilen Corciovei wrote: I implemented something js based here: http://www.resa-air.com/a5/be while wanting for the flights results to come up. Len www.len.ro On Wed, 2006-12-06 at 13:07 -0800, Sam Gendler wrote: Does anyone have a mechanism for displaying some kind of please wait mechanism while waiting for a slow loading page to be rendered? I can think of a couple of potential solutions: 1. Submit form, have listener send to a please wait page which does nothing but send another request which will actually load the page in question. The problems with this include pages that require lots of data in the form submission. I'd have to stick it in the session or throw it in a hidden form. If it is a lot of data, it could be quite slow. No control over when the browser stops displaying the message - usually first byte in. If there is network latency, that could still leave several seconds without the message in view. 2. If Tapestry supports it, I can render the header of the page, including a div that says please wait, then flush to the browser before initializing the model. At the end of the page, render some js that will hide the div. Only problem here is flushing before the page is completely rendered. Is this possible in Tapestry? Note: I cannot use an ajax update of the entire page and use the effects available in an AjaxForm to render the message. At least, I don't think I can. I haven't done an analysis of the pages in question, but I'd really prefer top have my solution work on any page, rather than just on ajax-y ones. It would, however, be nice to have a solution which looks the same whether dong an ajax update (using preEffect and effect) and when doing a full page reload after a normal POST. Thanks --sam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: need please wait notice for slow loading pages
It's probably more typing than my solution because of the number of onClick handlers I'll have to add Not sure if you can do it in your context, but instead of calling the JS function in all buttons onClick, you could just call it in the FORM onSubmit...
Re: Re: need please wait notice for slow loading pages
On Thu, 2006-12-07 at 03:45 -0800, Sam Gendler wrote: I thought about doing that, but I wasn't convinced I could rely on all browsers leaving the page visible until it received content for the next page. Have you used this in IE 6 and 7, Firefox 1.5 and 2, and Safari 2 by any chance? If not, I guess I'll check it out. It's probably more typing than my solution because of the number of onClick handlers I'll have to add, but it is a lot simpler and less likely to have side effects. Thanks. When I developed the site last year I tested it in Firefox 1.5, IE 6, and IE 5 (as the one installed at airline company at that moment). I think the only problem might arrise if the long waiting part is somewhere in a component. As far as I understand the process if the response takes some time to arrive then it's ok, if part of the page is rendered then a long wait occurs until the rest is fetched then it's not ok. I payed some attention to get into the first case. I did not got any complaints since then. Len www.len.ro --sam On 12/7/06, Marilen Corciovei [EMAIL PROTECTED] wrote: Here it is: http://www.len.ro/work/articles/please-wait-tapestry-component/view hope it helps, Len On Thu, 2006-12-07 at 01:53 -0800, Stefan Esterer wrote: Hi! thx for your helpful description! if you cound create a little simple example it would be great. thx for your effort stefan Marilen Corciovei wrote: The concept is simple. You have 2 pages. The one from which you go and the one which is supposed to follow which is rather slow. The first page contains a hidden div which gets visible when the user submits the form. This div is the one which you see with the animated gif. When the slow page has finished it's load it will replace the first page. This is based on the fact that the browser will keep the old page until the new one is loaded. input jwcid=@Submit listener=ognl:listeners.validateAction value=message:validate onClick=doWait(this, false); / The doWait just shows the hidden div/iframe. The only complicated part was to make the div/iframe about the combo boxes. If this is what you need I could create a working simple example. Len www.len.ro On Thu, 2006-12-07 at 01:24 -0800, Stefan Esterer wrote: Hi.. and how did you get this working? thx stefan Marilen Corciovei wrote: I implemented something js based here: http://www.resa-air.com/a5/be while wanting for the flights results to come up. Len www.len.ro On Wed, 2006-12-06 at 13:07 -0800, Sam Gendler wrote: Does anyone have a mechanism for displaying some kind of please wait mechanism while waiting for a slow loading page to be rendered? I can think of a couple of potential solutions: 1. Submit form, have listener send to a please wait page which does nothing but send another request which will actually load the page in question. The problems with this include pages that require lots of data in the form submission. I'd have to stick it in the session or throw it in a hidden form. If it is a lot of data, it could be quite slow. No control over when the browser stops displaying the message - usually first byte in. If there is network latency, that could still leave several seconds without the message in view. 2. If Tapestry supports it, I can render the header of the page, including a div that says please wait, then flush to the browser before initializing the model. At the end of the page, render some js that will hide the div. Only problem here is flushing before the page is completely rendered. Is this possible in Tapestry? Note: I cannot use an ajax update of the entire page and use the effects available in an AjaxForm to render the message. At least, I don't think I can. I haven't done an analysis of the pages in question, but I'd really prefer top have my solution work on any page, rather than just on ajax-y ones. It would, however, be nice to have a solution which looks the same whether dong an ajax update (using preEffect and effect) and when doing a full page reload after a normal POST. Thanks --sam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: Re: need please wait notice for slow loading pages
On 12/7/06, Fred Janon [EMAIL PROTECTED] wrote: It's probably more typing than my solution because of the number of onClick handlers I'll have to add Not sure if you can do it in your context, but instead of calling the JS function in all buttons onClick, you could just call it in the FORM onSubmit... Unfortunately, my problem is that I need it on plain links as well as in forms. Nothing I can't fix by just assigning a new class to any link that needs the handler and then adding the handler via a javascript method which iterates over all elements with the 'pleaseWait' class. --sam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: need please wait notice for slow loading pages
To avoid making multiple changes you could wrap your @Submit component into a @CustomSubmit which passes all informal parameters and add's the onClick and then overwritting the @Submit with @CustomSubmit in the .application (worked in 3.* don't know about 4.*) Len www.len.ro On Thu, 2006-12-07 at 20:56 +0900, Fred Janon wrote: It's probably more typing than my solution because of the number of onClick handlers I'll have to add Not sure if you can do it in your context, but instead of calling the JS function in all buttons onClick, you could just call it in the FORM onSubmit...
Re: Re: Re: need please wait notice for slow loading pages
Unfortunately, my problem is that I need it on plain links as well as in forms. Nothing I can't fix by just assigning a new class to any link that needs the handler and then adding the handler via a javascript method which iterates over all elements with the 'pleaseWait' class. --sam Sounds like the 'best' solution in your case...
Re: Re: Re: need please wait notice for slow loading pages
if you can get the first bytes of the second (slow) page loaded you can
start that page with the html for a div to appear in the centre of the
screen in front of the real content.
The last thing on the page should be the html which moves this either away
to the left (negative coordinates) of the screen or to the back behind
the real content.
this e.g works in ie (but not f-fox, that is left as an exercise for the
reader) :
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
html xmlns=http://www.w3.org/1999/xhtml;
head
meta http-equiv=Content-Type content=text/html; charset=utf-8 /
titleUntitled Document/title
style type=text/css
!--
.wait {
background-color: #FF;
position: absolute;
visibility: visible;
z-index: 10;
left: 90px;
top: 40px;
width: 200px;
height: 200px;
}
--
/style
/head
body onload=waitOne.style.zIndex='-10'
div class=wait id=waitOnePlease Wait/div
div
img src=http://www.direct.gov.uk/assetRoot/04/01/85/19/04018519.jpg;
width=100 height=100 /
img src=http://www.arroyofest.org/images/T-shirt%20back.JPG; width=100
height=100 /
img src=http://www.direct.gov.uk/assetRoot/04/01/85/19/04018519.jpg;
width=100 height=100 //div
/body
/html
[EMAIL PROTECTED] wrote on 07/12/2006 12:17:16:
On 12/7/06, Fred Janon [EMAIL PROTECTED] wrote:
It's probably more typing than my solution because of the number of
onClick handlers I'll have to add
Not sure if you can do it in your context, but instead of calling the
JS
function in all buttons onClick, you could just call it in the FORM
onSubmit...
Unfortunately, my problem is that I need it on plain links as well as
in forms. Nothing I can't fix by just assigning a new class to any
link that needs the handler and then adding the handler via a
javascript method which iterates over all elements with the
'pleaseWait' class.
--sam
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Re: XTile and cycle.activate
Thanks for your answer.
I've just a problem with your solution : ILink link =
svc.getLink(false,params) doesn't work. This instruction stop the execution
but don't get any error message...
I've tested it with differents solutions :
1/
@InjectPage(NoviaMail_ReadMail)
public abstract ReadMail getReadMail();
ILink link = svc.getLink(false, getReadMail());
2/ ILink link = svc.getLink(false, NoviaMail_ReadMail);
No one works... Have you got any idea ?
Jessek wrote:
I should clarify, this all works when using the normal core ajax
services provided in 4.1.1, not specifically in the XTile service.
On 12/6/06, Jesse Kuhnert [EMAIL PROTECTED] wrote:
FYI, this all just works as expected in t 4.1.1. (the solution is
still a little questionable but it's the best default behavior I could
think of so far)
On 12/6/06, Robert Zeigler [EMAIL PROTECTED] wrote:
cycle.activate will make the activated page be the page that renders.
However... the xtile service doesn't result in a page render. It
results
in an ajax response; hence, cycle.activate won't work. What you might
consider doing is putting the url of the page you want to activate into
the service parameters. Then you could just replace the document
location with the new url. Something along the lines of:
else {
IEngineSerivce svc =
cycle.getEngine().getService(Tapestry.PAGE_SERVICE);
Object[] params = new Object[] { NoviaMail_ReadMail };
ILink link = svc.getLink(false,params);
cycle.setServiceParameters(new Object[]
{redirect,link.getAbsoluteURL()});
}
and in javascript, something like:
my_function(params) {
if (params[0] == redirect) {
document.location.href=params[1];
return;
}
...
}
Something along those lines.
Robert
MattHouston wrote:
Hi !
I have a probleme using the XTile component and cycle.activate.
I do sth in AJAX with XTile and in my Java function who handle
requests,
sometimes i only receive and send requests to the client, that works
good.
But i would like to sometimes not send a request but activate another
page,
I thought I can do that with cycle.activate, but it doesn't works...
The code of my function :
public void handleListOfMailsRequest(IRequestCycle cycle) {
Object[] params = ((RequestCycle)
cycle).getServiceParameters();
System.out.println(length parmas : +params.length);
if (params.length == 0) return;
if (params[0].equals(isNews)) { // works good
[...]
String[] ret = {mm.getDate(), mm.getFrom(),
mm.getSubject(),
mm.getSize(), false, mm.getId()};
((RequestCycle)
cycle).setServiceParameters(ret);
}
else { //dont work
cycle.activate(NoviaMail_ReadMail);
}
}
Any help will be apprecated.
Thanks
MattHouston
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Open source based consulting work centered around
dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com
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Tapestry/Dojo team member/developer
Open source based consulting work centered around
dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com
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Re: about Beanform and JPA (persistence)
I haven't used EntityManagers directly, but your code looks fine to me,
especially if it works ;-)
You may want to wrap your flush( ) call in a try/catch block in case
something goes wrong, and roll back the transaction in the catch block.
Once you get more comfortable with things (and if you're using Hibernate),
you may want to check out some of the integration packages (Tapernate,
Honeycomb, etc) that handle transaction scoping for you. Spring might also
be a good option if you end up splitting your app up into presentation /
service / persistence layers.
On 12/6/06, Cyrille37 [EMAIL PROTECTED] wrote:
Hello,
I'm coming back with a beginner question ;-)
After 3 weeks of Java Web App discovering, I'm actually working with
Tapestry 4.0.2, Netbeans 5.5 which give me easy data persistence support
with JPA Toplink essential, and Tomcat5.5 and Mysql5.
So I've finaly got something working with Beanform and JPA and I come to
you to get comments and ideas and best practice.
For the persistence, the method I've found is to do the following :
* To remember with object I'm playing with :
@Persist(client)
public abstract int getProductId();
public abstract void setProductId(int productId);
* To manage the Beanform's bean :
private Product _product ;
public Product getProduct()
{
if( this._product==null this.getProductId()0 )
{
this.setProduct( this.loadProduct( this.getProductId ()) );
}
return this._product ;
}
public void setProduct( Product product )
{
this._product = product ;
}
* For initializing the page at the first time :
public void activateExternalPage(Object[] parameters, IRequestCycle
cycle)
{
int pid = Integer.parseInt( parameters[0].toString());
setProductId( pid );
this.setProduct ( this.loadProduct(pid) );
}
* And finally to implement the Beanform 'save' listener :
public String save()
{
System.out.println( ProductEdit.save() );
if( this.getDelegate().getHasErrors() )
return null;
EntityManager em = getDataManagerFactory().GetEntityManager();
/*** I find that method a beat strange but it works ! ***/
em.getTransaction ().begin();
em.flush();
em.getTransaction().commit();
return Home;
}
Thanks to have read my poetry ;-)
Cyrille.
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Re: need please wait notice for slow loading pages
It looks as you add the content to it's body. An example is here: http://www.resa-air.com/a5/be Len On Thu, 2006-12-07 at 20:09 +0530, Karthik N wrote: len, on your blog can you please post a screen shot of how the Please wait component display looks? Thanks
Re: XTile and cycle.activate
Re
I have found another way to make this work.
Thanks for all
CU
MattHouston
MattHouston wrote:
Hi !
I have a probleme using the XTile component and cycle.activate.
I do sth in AJAX with XTile and in my Java function who handle requests,
sometimes i only receive and send requests to the client, that works good.
But i would like to sometimes not send a request but activate another
page, I thought I can do that with cycle.activate, but it doesn't works...
The code of my function :
public void handleListOfMailsRequest(IRequestCycle cycle) {
Object[] params = ((RequestCycle) cycle).getServiceParameters();
System.out.println(length parmas : +params.length);
if (params.length == 0) return;
if (params[0].equals(isNews)) { // works good
[...]
String[] ret = {mm.getDate(), mm.getFrom(),
mm.getSubject(),
mm.getSize(), false, mm.getId()};
((RequestCycle) cycle).setServiceParameters(ret);
}
else { //dont work
cycle.activate(NoviaMail_ReadMail);
}
}
Any help will be apprecated.
Thanks
MattHouston
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@Persist weirdness
I need a sanity check. :) So I have the following map of maps which I need to persist in the user session: @Persist public abstract MapString, MapString, Object getPageParameters(); public abstract void setPageParameters(MapString, MapString, Object params); Everything seems to work fine except that if I clear my session by deleting my cookies and come back to the page getPageParameters() returns the same map rather than null. I mean, it should return null right? I'm running this in Jetty in case it matters. -- Dan Adams Senior Software Engineer Interactive Factory 617.235.5857 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Securing URL Parameters
Dennis Sinelnikov wrote: Dear Fellow Tapestriers :), I need to implement an EngineService that will return a specific file living on a filesystem. I need to pass a parameter in the url that specifies which file to return. I've searched the tapestry list serve archives for an elegant solution, but nothing really caught my eye. My initial thought was to do a one-way hash of the file and pass it via the parameter in the url; when the url comes back the service would replicate the process by comparing the hashes of all the files and see which one matches; the one matches return to the user. I'm curious to see what others are doing in securing urls from malicious users. Sample code or any suggestions are greatly appreciated. Thanks, Dennis - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] I was looking for elegant solution for that problem as well. I ended up doing something similar to AssetService, which is I guess what you are trying to do as well. The code is here: http://scm.sipfoundry.org/rep/sipX/main/sipXconfig/web/src/org/sipfoundry/sipxconfig/components/DownloadService.java http://scm.sipfoundry.org/rep/sipX/main/sipXconfig/web/src/org/sipfoundry/sipxconfig/components/DownloadLink.java It's in subversion repository - you can get entire project from here: http://scm.sipfoundry.org/rep/sipX/main/sipXconfig If anybody comes up with something better I'd like to know that. Damian - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Manually initializing persistent properties
What is the correct place to initialize a @Persisted property? pageAttached() is too early it seems as the properties haven't been updated but pageBeginRender() is too later since you have to update them before rendering begins. -- Dan Adams Senior Software Engineer Interactive Factory 617.235.5857 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Manually initializing persistent properties
I do it in pageBeginRender. I suppose you could use pageValidate if you need it a little earlier. On Thu, 07 Dec 2006 17:20:45 +0100, Dan Adams [EMAIL PROTECTED] wrote: What is the correct place to initialize a @Persisted property? pageAttached() is too early it seems as the properties haven't been updated but pageBeginRender() is too later since you have to update them before rendering begins. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tapestry and Spring 2.0
Spring 2 is released and I want to know if it´s compatible with tapestry 4.0.2 or even with 4.1??? Is there maybe a new Tapestry-spring.jar available?? -- View this message in context: http://www.nabble.com/Tapestry-and-Spring-2.0-tf2775514.html#a7742600 Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tapestry and Spring 2.0
I think it should be compatible, but don't quote me on that. In any case I am using Spring 2 with tapestry without using tapestry-spring. I use spring-2.0 @Configurable annotation to allow me to inject my beans into any object including Tapestry pages and Hibernate entities. I also use spring-annotations an add-on that allows me to define spring beans using anotations rather than a context.xml. I'm quite happy with both. On 12/7/06, Skorpien126 [EMAIL PROTECTED] wrote: Spring 2 is released and I want to know if it´s compatible with tapestry 4.0.2 or even with 4.1??? Is there maybe a new Tapestry-spring.jar available?? -- View this message in context: http://www.nabble.com/Tapestry-and-Spring-2.0-tf2775514.html#a7742600 Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tapestry and Spring 2.0
We are using Spring 2.0 and Tapestry 4.0.2 together with Trails 1.0-SNAPSHOT. You can quote me on it :) 2.0 interfaces are pretty much the same as in 1.2.6. Context file schema has some minor changes and some test classes have changed. Overall, there should be no problem switching. Kalle On 12/7/06, Daniel Tabuenca [EMAIL PROTECTED] wrote: I think it should be compatible, but don't quote me on that. In any case I am using Spring 2 with tapestry without using tapestry-spring. I use spring-2.0 @Configurable annotation to allow me to inject my beans into any object including Tapestry pages and Hibernate entities. I also use spring-annotations an add-on that allows me to define spring beans using anotations rather than a context.xml. I'm quite happy with both. On 12/7/06, Skorpien126 [EMAIL PROTECTED] wrote: Spring 2 is released and I want to know if it´s compatible with tapestry 4.0.2 or even with 4.1??? Is there maybe a new Tapestry-spring.jar available?? -- View this message in context: http://www.nabble.com/Tapestry-and-Spring-2.0-tf2775514.html#a7742600 Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: @Persist weirdness
So I added an @InitialValue which calls a method to create the initial map and this seems to have fixed it. After reading the enhancement source I found out something tricky about this. SpecifiedPropertyWorker.addReinitializer gets called if you don't set an initial value and it basically does (for property 'foo'): in finishLoad(): foo$default = foo; in pageDetached(): foo = foo$default; now, in my class in finishLoad I was doing essentially: foo = new HashMap(); So on the first call to the page this would set the default value of the property to that specific object. So if you reset your session you would get the same object back when it initialized it to the default value. However, when you use @InitialValue the enhancement adds the following: finishLoad(): foo$initialValueBinding = foo$initialValueBinding.createBinding(this); foo = (evaluate the binding); pageDetached(): foo = (evaluate the binding); So it appears that if you are going to @Persist an object and need the initial value to not be null you should be sure to use @InitialValue or otherwise you could end up with some weirdness. In my case it works if you test it naively but fortunately my test cases were robust enough to catch it. On Thu, 2006-12-07 at 10:58 -0500, Dan Adams wrote: I need a sanity check. :) So I have the following map of maps which I need to persist in the user session: @Persist public abstract MapString, MapString, Object getPageParameters(); public abstract void setPageParameters(MapString, MapString, Object params); Everything seems to work fine except that if I clear my session by deleting my cookies and come back to the page getPageParameters() returns the same map rather than null. I mean, it should return null right? I'm running this in Jetty in case it matters. -- Dan Adams Senior Software Engineer Interactive Factory 617.235.5857 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Textfield inside a @for and different bean translator for each TextField instance
Hello all, I have the following, .page file, component id=collection type=For binding name=source value=channelSetup/ binding name=value value=currentChannelSetup/ /component component id=text type=TextField binding name=value value=currentChannelSetup.field/ binding name=translator value=bean:currentChannel.bean/ /component .html file div jwcid=collection input jwcid=text / /div What I want to know is if I can have binding name=translator value=bean:currentChannel.bean/ or something similar ? -- Thanks A Jabbar Azam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
@Persist and @InitialValue (followup)
I've ran into a problem that other people seem to have reported on the mailing list before. But my unanswered question is: if you use @Persist and @InitialValue, when does the value get set back from the session? I've got the same problem someone else did where the property is set to the same value every time. Thanks. -- Dan Adams Senior Software Engineer Interactive Factory 617.235.5857 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: problem with 4.1.1 snapshot
Thanks so much! -Original Message- From: Jesse Kuhnert [mailto:[EMAIL PROTECTED] Sent: Thursday, December 07, 2006 7:56 AM To: Tapestry users Subject: Re: problem with 4.1.1 snapshot You are missing a required library. http://tapestry.apache.org/tapestry4.1/tapestry-framework/dependencies.html On 12/7/06, Henry Chen [EMAIL PROTECTED] wrote: I tried to use the latest 4.1.1 snapshot in the repository but got the following error when I launch the application in the web browser. Can anybody tell me why this is happening? I'm using tapestry-acegi. Don't know if that is a problem. I would be very grateful for any help. Thank you. javax.servlet.ServletException: Unable to construct service tapestry.request.DisableCachingFilter: Error building service tapestry.request.DisableCachingFilter: Failure invoking constructor for class org.apache.tapestry.services.impl.DisableCachingFilter: edu/emory/mathcs/backport/java/util/concurrent/locks/ReentrantLock org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(W ebRequestServicerPipelineBridge.java:60) $ServletRequestServicer_10f5bf1f257.service($ServletRequestServicer_10f5bf1f 257.java) $ServletRequestServicer_10f5bf1f256.service($ServletRequestServicer_10f5bf1f 256.java) org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInj ector.java:55) $ServletRequestServicerFilter_10f5bf1f253.service($ServletRequestServicerFil ter_10f5bf1f253.java) $ServletRequestServicerFilter_10f5bf1f252.service($ServletRequestServicerFil ter_10f5bf1f252.java) $ServletRequestServicer_10f5bf1f258.service($ServletRequestServicer_10f5bf1f 258.java) com.javaforge.tapestry.acegi.filter.FilterChainAdapter.doFilter(FilterChainA dapter.java:43) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(Ano nymousProcessingFilter.java:125) $Filter_10f5bf1f251.doFilter($Filter_10f5bf1f251.java) $Filter_10f5bf1f250.doFilter($Filter_10f5bf1f250.java) com.javaforge.tapestry.acegi.filter.ServletRequestServicerFilterAdapter.serv ice(ServletRequestServicerFilterAdapter.java:42) $ServletRequestServicer_10f5bf1f258.service($ServletRequestServicer_10f5bf1f 258.java) com.javaforge.tapestry.acegi.filter.FilterChainAdapter.doFilter(FilterChainA dapter.java:43) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFil ter.java:216) $FormProcessor_10f5bf1f24f.doFilter($FormProcessor_10f5bf1f24f.java) $FormProcessor_10f5bf1f24e.doFilter($FormProcessor_10f5bf1f24e.java) com.javaforge.tapestry.acegi.filter.ServletRequestServicerFilterAdapter.serv ice(ServletRequestServicerFilterAdapter.java:42) $ServletRequestServicer_10f5bf1f258.service($ServletRequestServicer_10f5bf1f 258.java) org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecode rFilter.java:52) $ServletRequestServicerFilter_10f5bf1f247.service($ServletRequestServicerFil ter_10f5bf1f247.java) $ServletRequestServicerFilter_10f5bf1f246.service($ServletRequestServicerFil ter_10f5bf1f246.java) $ServletRequestServicer_10f5bf1f258.service($ServletRequestServicer_10f5bf1f 258.java) org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestE ncoding.java:53) $ServletRequestServicerFilter_10f5bf1f255.service($ServletRequestServicerFil ter_10f5bf1f255.java) $ServletRequestServicerFilter_10f5bf1f254.service($ServletRequestServicerFil ter_10f5bf1f254.java) $ServletRequestServicer_10f5bf1f258.service($ServletRequestServicer_10f5bf1f 258.java) com.javaforge.tapestry.acegi.filter.FilterChainAdapter.doFilter(FilterChainA dapter.java:43) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpS essionContextIntegrationFilter.java:195) $Filter_10f5bf1f249.doFilter($Filter_10f5bf1f249.java) $Filter_10f5bf1f248.doFilter($Filter_10f5bf1f248.java) com.javaforge.tapestry.acegi.filter.ServletRequestServicerFilterAdapter.serv ice(ServletRequestServicerFilterAdapter.java:42) $ServletRequestServicer_10f5bf1f258.service($ServletRequestServicer_10f5bf1f 258.java) $ServletRequestServicer_10f5bf1f241.service($ServletRequestServicer_10f5bf1f 241.java) $ServletRequestServicer_10f5bf1f240.service($ServletRequestServicer_10f5bf1f 240.java) org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:123 ) org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:104) javax.servlet.http.HttpServlet.service(HttpServlet.java:689) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.tapestry.RedirectFilter.doFilter(RedirectFilter.java:103) root cause org.apache.hivemind.ApplicationRuntimeException: Unable to construct service tapestry.request.DisableCachingFilter: Error building service tapestry.request.DisableCachingFilter: Failure invoking constructor for class org.apache.tapestry.services.impl.DisableCachingFilter:
Re: @Persist and @InitialValue (followup)
Yes, it doesn't seem they work together - for me too... (on t4.0) Cheers, Ron Dan Adams wrote: I've ran into a problem that other people seem to have reported on the mailing list before. But my unanswered question is: if you use @Persist and @InitialValue, when does the value get set back from the session? I've got the same problem someone else did where the property is set to the same value every time. Thanks. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Dependency management of the tapestry-flash maven distribution
Hello All, I've just noticed that tapestry-flash required tapestry and hence maven loaded tapestry 4.0.1 by default where I'm using currently 4.1.1-SNAPSHOT. What is wrong? Is dependency is incorrect or naming of the tapestry is not correct in the flash.pom? -- Best regards, Renat Zubairov - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Dependency management of the tapestry-flash maven distribution
You just need to add some exclusions as done here: http://svn.apache.org/viewvc/tapestry/tapestry4/trunk/pom.xml?view=markup On 12/7/06, Renat Zubairov [EMAIL PROTECTED] wrote: Hello All, I've just noticed that tapestry-flash required tapestry and hence maven loaded tapestry 4.0.1 by default where I'm using currently 4.1.1-SNAPSHOT. What is wrong? Is dependency is incorrect or naming of the tapestry is not correct in the flash.pom? -- Best regards, Renat Zubairov - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Jesse Kuhnert Tapestry/Dojo team member/developer Open source based consulting work centered around dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Html Email Messages
In tapestry versions prior to 4.1 we rendered email message using tapestry with the following code. BaseHTMLMessagePage sendPage = (BaseHTMLMessagePage) getHtmlPage(inner); ByteArrayOutputStream out = new ByteArrayOutputStream(); IMarkupWriter writer = new MarkupWriterImpl(text/html, new PrintWriter(out), new AsciiMarkupFilter()); inner.activate(sendPage); inner.renderPage(writer); writer.flush(); subjectAndBody[0] = sendPage.getSubject(); subjectAndBody[1] = out.toString(); inner.cleanup(); getRequestGlobals(cycle).store(cycle); After recently upgrading to 4.1 this method no longer works. RequestCycle.renderPage no longer takes an IMarkupWriter but requires a ResponseBuilder. I've tried the DefaultResponseBuilder which seems to want to write to the WebResponse instead of the IMarkupWriter that I send it. My question is how best to make this work again? Do I need to implement a new ResponseBuilder somehow or extend the DefaultResponseBuilder? Or is there a better way to render tapestry pages for html email? -- Dave Kallstrom
Re: @Persist and @InitialValue (followup)
So, how do you set the initial value of a Persisted property to something non-trivial? On Thu, 2006-12-07 at 17:58 +0100, Ron Piterman wrote: Yes, it doesn't seem they work together - for me too... (on t4.0) Cheers, Ron Dan Adams wrote: I've ran into a problem that other people seem to have reported on the mailing list before. But my unanswered question is: if you use @Persist and @InitialValue, when does the value get set back from the session? I've got the same problem someone else did where the property is set to the same value every time. Thanks. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Dan Adams Senior Software Engineer Interactive Factory 617.235.5857 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Dependency management of the tapestry-flash maven distribution
Thanks! On 07/12/06, Jesse Kuhnert [EMAIL PROTECTED] wrote: You just need to add some exclusions as done here: http://svn.apache.org/viewvc/tapestry/tapestry4/trunk/pom.xml?view=markup On 12/7/06, Renat Zubairov [EMAIL PROTECTED] wrote: Hello All, I've just noticed that tapestry-flash required tapestry and hence maven loaded tapestry 4.0.1 by default where I'm using currently 4.1.1-SNAPSHOT. What is wrong? Is dependency is incorrect or naming of the tapestry is not correct in the flash.pom? -- Best regards, Renat Zubairov - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Jesse Kuhnert Tapestry/Dojo team member/developer Open source based consulting work centered around dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Best regards, Renat Zubairov - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: Manually initializing persistent properties
pageValidate happens when the page is first activated in the cycle.
Any annotations are also executed at this time, so @InitialValue has
already done its work when pageValidate is called
pageAttached happens just after that. It only fires once per request,
whether rewind or render
activateExternalPage happens next, if it is an IExternalPage, so now
any external parameters are populated
pageBeginRender happens after that. It fires before the rewind AND
before the render cycle. So yes, the first time pageBeginRender is
called, your properties have not yet been updated by the rewind cycle.
However, the second time pageBeginRender is called, it is just about
to begin the render cycle, so all of your properties are fully
populated. You can detect whether it is rewinding or rendering by
calling cycle.isRewinding() within the method.
So it is probably best to leave your initialization in
pageBeginRender, since that is the only place you put init code which
is dependant on your external params or which will occur before render
cycle instead of before rewind. I wind up breaking my pageBeginRender
method up into 4 stages for precisely this reason.
@InitialValue(ognl:false)
public abstract boolean isOnceInitialized();
public abstract void setOnceInitialized(boolean val);
public final void pageBeginRender(PageEvent event) {
initPage(event);
if (!isOnceInitialized()) {
initOnlyOnce(event);
setOnceInitialized(true);
}
if (getRequestCycle().isRewinding()) {
initForRewind(event);
} else {
initForRender(event);
}
}
This is in my base page class(es). I then simply overload initPage,
initOnlyOnce, initForRewind, and initForRender according to what the
page requires. It just eliminates having lots of init code in the
same method with conditionals to determine where the code needs to
fire.
--sam
On 12/7/06, Martin Strand [EMAIL PROTECTED] wrote:
I do it in pageBeginRender. I suppose you could use pageValidate if you
need it a little earlier.
On Thu, 07 Dec 2006 17:20:45 +0100, Dan Adams [EMAIL PROTECTED] wrote:
What is the correct place to initialize a @Persisted property?
pageAttached() is too early it seems as the properties haven't been
updated but pageBeginRender() is too later since you have to update them
before rendering begins.
-
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Re: Html Email Messages
I don't know 4.1, but if you provide a Response and replace the outputstream, you'll likely get what you want. You'll just have to ensure the headers don't get sent, but I believe that is a method you can overload in the Response. --sam On 12/7/06, Dave Kallstrom [EMAIL PROTECTED] wrote: In tapestry versions prior to 4.1 we rendered email message using tapestry with the following code. BaseHTMLMessagePage sendPage = (BaseHTMLMessagePage) getHtmlPage(inner); ByteArrayOutputStream out = new ByteArrayOutputStream(); IMarkupWriter writer = new MarkupWriterImpl(text/html, new PrintWriter(out), new AsciiMarkupFilter()); inner.activate(sendPage); inner.renderPage(writer); writer.flush(); subjectAndBody[0] = sendPage.getSubject(); subjectAndBody[1] = out.toString(); inner.cleanup(); getRequestGlobals(cycle).store(cycle); After recently upgrading to 4.1 this method no longer works. RequestCycle.renderPage no longer takes an IMarkupWriter but requires a ResponseBuilder. I've tried the DefaultResponseBuilder which seems to want to write to the WebResponse instead of the IMarkupWriter that I send it. My question is how best to make this work again? Do I need to implement a new ResponseBuilder somehow or extend the DefaultResponseBuilder? Or is there a better way to render tapestry pages for html email? -- Dave Kallstrom - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Textfield inside a @for and different bean translator for each TextField instance
Assuming currentChannel.bean returns a valid translator object, I don't see why it shouldn't work. It would certainly work outside of the loop. I do that all the time. --sam On 12/7/06, Jabbar [EMAIL PROTECTED] wrote: Hello all, I have the following, .page file, component id=collection type=For binding name=source value=channelSetup/ binding name=value value=currentChannelSetup/ /component component id=text type=TextField binding name=value value=currentChannelSetup.field/ binding name=translator value=bean:currentChannel.bean/ /component .html file div jwcid=collection input jwcid=text / /div What I want to know is if I can have binding name=translator value=bean:currentChannel.bean/ or something similar ? -- Thanks A Jabbar Azam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: @Persist weirdness
In general, however, you are advsied not to store mutable objects into the session. The mechanism used to persist into the session should be opaque to the programmer, and it is likely that a persistence mechanism will only actually store an object if it has changed since the last time it was stored. Admittedly, this will work just fine if you are running on a single host, but it isn't guaranteed to do so. As soon as you start distributing your sessions around a cluster, however, you will run into real difficulties, because changes to the session are only replicated if the reference to a persistent entity has changed. Since your reference is to a mutable object, it is possible to modify the object (by adding or removing a key or value) without modifying the reference to it. This would cause the map to fail to be propagated to the cluster. For session distribution, there is a nice fix for this problem you can use. There is an interface you can implement (the name of which escapes me) which will allow the session to ask the object whether it needs to be distributed. But there is also a base class you can extend called org.apache.tapestry.BaseSessionStoreOptimized. If you look at the javadoc for that object, you'll see the interface name I was speaking of. BaseSessionStoreOptimized provides a method you can call whenever you modify your mutable object which will cause the object to correctly notify the session manager that it needs to be redistributed. Now, I have absolutely no idea if the @Persist annotation is smart enough to check for the existence of the interface in question and test for modifications as appropriate, but it might be. But at least you now know why you should avoid mutable objects in the session. Maybe the tap devs can fix the annotation if it doesn't already do this. --sam On 12/7/06, Dan Adams [EMAIL PROTECTED] wrote: So I added an @InitialValue which calls a method to create the initial map and this seems to have fixed it. After reading the enhancement source I found out something tricky about this. SpecifiedPropertyWorker.addReinitializer gets called if you don't set an initial value and it basically does (for property 'foo'): in finishLoad(): foo$default = foo; in pageDetached(): foo = foo$default; now, in my class in finishLoad I was doing essentially: foo = new HashMap(); So on the first call to the page this would set the default value of the property to that specific object. So if you reset your session you would get the same object back when it initialized it to the default value. However, when you use @InitialValue the enhancement adds the following: finishLoad(): foo$initialValueBinding = foo$initialValueBinding.createBinding(this); foo = (evaluate the binding); pageDetached(): foo = (evaluate the binding); So it appears that if you are going to @Persist an object and need the initial value to not be null you should be sure to use @InitialValue or otherwise you could end up with some weirdness. In my case it works if you test it naively but fortunately my test cases were robust enough to catch it. On Thu, 2006-12-07 at 10:58 -0500, Dan Adams wrote: I need a sanity check. :) So I have the following map of maps which I need to persist in the user session: @Persist public abstract MapString, MapString, Object getPageParameters(); public abstract void setPageParameters(MapString, MapString, Object params); Everything seems to work fine except that if I clear my session by deleting my cookies and come back to the page getPageParameters() returns the same map rather than null. I mean, it should return null right? I'm running this in Jetty in case it matters. -- Dan Adams Senior Software Engineer Interactive Factory 617.235.5857 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Decision of whether to use tapestry
I typed up a long response, but then reread your question and I think maybe I need some clarification. I included my original response below in case it answers your question. If you are looking for something that can be included in any page, rendered by any framework, then I'm not sure you really want to use Tapestry. The only way you are going to build something that can be used absolutely anywhere is to render the poll entirely in html and javascript. Take a look at dojo for examples of lots of widgets that can be used in any web page by simply including the correct js files. However, dojo does leave the backend processing as an exercise for the user, rather than providing a service to handle storing and rendering user input. The difficult thing in your concept is submitting the results back to a server which will maintain totals and render them back to the browser, either graphically, or maybe just as a data structure that the browser can then use to render graphically. Tapestry can be used to do this, fairly easily, but in general, Tapestry is a fairly stateful framework that is used for building applications rather than just widgets that can be inserted into other apps. You could implement an IExternalPage which receives the selected answer and poll id in the URL, stores the answer against the poll id, and serves up totals. The only real caveat is that your tapestry-based pollserver is likely to be on a different host than the containing page, so you'll have to use cross domain techniques to allow tapestry to serve up js that can interact with the template provided in the containing page. This is basically just a matter of serving up js as a string and then eval()'ing that string within the context of the containing document. There are lots of discussions of cross-domain js on the web, so I'll leave that to you to research. You'd have the same problem with any framework you might choose to implement the backend in. Now, if you were just talking about building a tapestry poll component that can be used only in other Tapestry applications, the answer is definitely yes and I have a fairly detailed answer below: Yes, it is possible. There are a lot of parallels between your component and the contrib:Table component that comes with Tapestry (although the table is likely to be much more complex). Just to give you some concepts to refer to in your research, here's brief outline if what you'd likely do. Create a poll component that takes some data structure that defines the poll and the current results (assuming you also want to display results there). The poll component iterates over each poll answer rendering an @Block component that is provided by the page template. The @Block component contains all of the template code necessary to render a single answer of the poll. If the user wants a table, they open the table tag in their template, then include an @Block component which renders a single table row (or column, depending upon preference). You can use a different Block component to render a link to the results, a submit button, or anything else you care for. If you provide reasonable defaults, many users will never have to define a Block at all in order to use your poll. Your component is only responsible for providing default layout and data structures, but everything is overloadable via Blocks. Something like the following (I'll use a list this time, just to show the difference): ul jwcid=[EMAIL PROTECTED] questions=ognl:answers index=ognl:currentanswer element=literal:ul span jwcid=[EMAIL PROTECTED] lispan jwcid=@Insert value=ognl:currentAnswer//li /span /ul My little example above excludes the actual selection mechanism, submit button, or results display, but all of that is easy enough. You might find that your default 'Poll' component consists of multiple sub components - PollView, PollResults, PollSubmit. The little sample above is probably actually a PollView component which would be wrapped the Poll component. The PollView, PollResults, and PollSubmit can be placed in different locations, relative to each other, by simply replacing the outer Poll layer, or by using them without an outer Poll layer. This is exactly how the table component works, using a TableView to render the table, a TablePages component to render the page changing mechanism. The TableView itself consists of TableColumns, TableRows, etc. OK, assuming you are a tapestry novice, that probably went WAY over your head. However, it will hopefully give you some keywords to watch out for as you read documentation. I recommend that you read the first 4 chapters of the Enjoy Web Development with Tapestry ebook that is linked from the tapestry home page. You should also check out the tapestry tables tutorial webapp and then look at the source code to contrib:Table. You could probably read through all of that in a long day, if you don't actually implement any of the tutorial code, anyway. At the
Re: Re: Tomcat hangs - Tapestry issue or what?
Thank you guys. Sam, I totally agree with you. Increasing max threads will only delay my worries. My ISP has increased max thread size to 40 so at least I'm unable to reproduce my problem on one or two users. I've tried to get the JConsole to work with SSH but with no luck, seems to be tricky... I'll try more another day. Running JConsole on my local development server works great and I can see clearly that 3 threads is enough for one user. One thread is mysteriously always busy, one thread is in use shortly on every request and if I try hard refreshing I can get another thread running. I'll talk to my nice ISP and see if they can help me running the JConsole. Malin On 12/7/06, Sam Gendler [EMAIL PROTECTED] wrote: On 12/7/06, Jesse Kuhnert [EMAIL PROTECTED] wrote: Increase the max thread size on your tomcat context threadpool. It looks to me like the log message is telling you a max of 10 is currently allocated for this purpose now. (an abnormally low number) If this is really only occuring with one or two users on the system, 10 threads should be enough, since no browser will open more than 2 connections to the server at any single instant. It would appear that something is preventing threads from returning to the pool as soon as the request is completed. Bumping the max threads up to a higher number will give you temporary relief, but doesn't fix the underlying problem that is preventing you from reusing threads efficiently. 10 is a very low number, however, and you may well find that bumping the number to 100 will instantly give you enough headroom that you never see the problem again (with reasonable load, anyway). But since this is a hosted server, it is entirely possible you can't bump the maxThreads number. In that case, you can complain to your ISP or else you will have to figure out why the threads aren't being reused. --sam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Textfield inside a @for and different bean translator for each TextField instance
Hello, Thank for your assistance again! It worked. On 07/12/06, Sam Gendler [EMAIL PROTECTED] wrote: Assuming currentChannel.bean returns a valid translator object, I don't see why it shouldn't work. It would certainly work outside of the loop. I do that all the time. --sam On 12/7/06, Jabbar [EMAIL PROTECTED] wrote: Hello all, I have the following, .page file, component id=collection type=For binding name=source value=channelSetup/ binding name=value value=currentChannelSetup/ /component component id=text type=TextField binding name=value value=currentChannelSetup.field/ binding name=translator value=bean:currentChannel.bean/ /component .html file div jwcid=collection input jwcid=text / /div What I want to know is if I can have binding name=translator value=bean:currentChannel.bean/ or something similar ? -- Thanks A Jabbar Azam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Thanks A Jabbar Azam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: about Beanform and JPA (persistence)
I'll clarify a little. In general, you want to keep persistence code, ui code, and business rules fairly separate. This will keep your application much more flexible as more and more requirements are added over time. In your example code, you've got persistence embedded directly in ui code. Should you ever decide to replace your perisistence layer with something else (say, replace toplink with hibernate, ibatis, or even raw jdbc), you will have to go in and modify every page class you've built that has persistence code in it. In a large project, this is effectively impossible to do without destabilizing the codebase too much to be acceptable. Therefore, most well architected apps will keep all perisistence code in a separate set of interfaces. So long as you can create a persistence layer that maintains the same interface, you can replace one with another very simply. This is where dependency injection becomes useful - Instead of injecting a toplink data access object into your page, you can inject a hibernate one instead. But wait, did I just say injecting a dao into the page? Most of us would argue you never want to do that, for the following reason. Suppose you have a method in your DAO which stores an entity into the database. If you are using your dao directly in your page class, then you either have to open and commit a transaction directly in your page (violating the rule about keeping persistence code out of your ui layer and once again locking you into a particular transaction mechanism, preventing you from switching between JDBC transactions, JTA transactions, etc), or else your DAO itself has to open the transaction, save the entity, and commit the transaction. This would be fine in this circumstance. Your persistence code would stay in your persistence layer, but now you have another problem. Page1 may store just a single instance of the entity, so including transaction semantics around that store operation works just fine. But now you have to add Page2, and Page2 wants to store two entities. But if either store() fails (unique column conflict, for instance), you don't want to store() either of the entities. So now your transaction within the store method won't work, since the first store() will be fully committed before the second store() fails, offering you no way to roll back. So your only option is to implement another DAO method - one which takes a collection of entities and stores them all within a single transaction. You can probably see that as your project grows, you are going to wind up with a lot of very similar methods, each different only in the transaction behaviour. The rule that you must be able to store both entities if you are going to store either one is considered a 'business rule' - an artificial constraint on what you are allowed to do. Business rules frequently change over the life of a project, so once again, you want to keep your business logic firmly separated from your ui. Again, this is accomplished by shoving your business logic into separate classes with a well defined interface and injecting instances of those interfaces into your page classes. Now, your ui code doesn't need to know anything about transactions because your service layer is handling them. Your ui can call a method to store() two entities and doesn't need to be concerned with the details of how that occurs or what is allowed. All it knows is it either succeeded or failed based on an exception may catch. Once again, your ui layer is clean. It is injected only with service interfaces. Service objects are injected with DAO interfaces, and you've got a nice clean layer separation. Except for one thing. You've got a bunch of transaction code sitting in your service layer, wrapped around calls into your DAOs, which no longer have any knowledge of transactions themselves. This means there is still a strong binding between your service layer and your perisistence layer, making it very difficult to modify one without modifying the other. That's generally considered a _bad_thing_ and should be avoided. So this is where Spring steps in and provides some VERY useful functionality. Spring gives a nice declarative mechanism (ie. you can set it up in a config file or annotation, rather than by writing code) for forcing a transaction around any method of any object. You can define a business method that calls multiple DAO methods and you can tell spring that anytime someone calls that method, you want a transaction to be started before the method executes, and the transaction to be committed when the method is completed without throwing an exception, or rolled back if an exception is caught. Now you can remove all of that pesky transaction code from your service layer, giving you true independance from your persistence layer outside of the persistence interfaces, which should be generic across any persistence mechanism. OK, you've still got a dependency in your config, but at
Re: Re: Textfield inside a @for and different bean translator for each TextField instance
I didn't do anything. You had it right to begin with ;-) It was a good guess. --sam On 12/7/06, Jabbar [EMAIL PROTECTED] wrote: Hello, Thank for your assistance again! It worked. On 07/12/06, Sam Gendler [EMAIL PROTECTED] wrote: Assuming currentChannel.bean returns a valid translator object, I don't see why it shouldn't work. It would certainly work outside of the loop. I do that all the time. --sam On 12/7/06, Jabbar [EMAIL PROTECTED] wrote: Hello all, I have the following, .page file, component id=collection type=For binding name=source value=channelSetup/ binding name=value value=currentChannelSetup/ /component component id=text type=TextField binding name=value value=currentChannelSetup.field/ binding name=translator value=bean:currentChannel.bean/ /component .html file div jwcid=collection input jwcid=text / /div What I want to know is if I can have binding name=translator value=bean:currentChannel.bean/ or something similar ? -- Thanks A Jabbar Azam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Thanks A Jabbar Azam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tapestry is slow on my machine.
I'm running Tapestry 4.1.1 snapshot, tomcat 5.5 on two machines. The speed is kind of slow. I did a test on the workbench sample. The speed is much slower than browsing the workbench sample on tapestry website. Does anybody have this issue too? Any suggestions? Thanks a lot!
Re: Drag-n-Drop component
Well, at its simplest, you can just put straight dojo js code directly in your template, a solution which requires absolutely no explicit support from tapestry at all. If you need the ability to reuse that code easily, then you could wrap it up in a component, but nothing truly says you have to do that (although it is generally recommended, if only for code leigibility and maintenance reasons). Without a tap component, you'll likely need to update a hidden field or fields that you explicitly include in the page at the time of the drop and/or fire off a request to a tapestry service. This things can also be done without explicit support from tapestry. If you wrap your functionality up in a component, then you can have your component template include the necessary hidden fields, links, and forms. I don't know the specifics of dojo drag and drop, so I can't steer you in the correct direction there. If you just implement it in a page using raw js code and hidden fields, you'll likely discover quite quickly how it should be encapsulated into a component. --sam On 12/7/06, Emmanuel Sowah [EMAIL PROTECTED] wrote: Hi, Does anyone has a drag and drop tapestry component to share? Are there plans to integrate dojo's drag and drop javascript into core tapestry? Or can someone give me some guidelines as to how to do this in tapestry with Dojo's javascript? Thanks, Emmanuel - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tapestry is slow on my machine.
Do you have caching disabled? If you do, then tapestry is doing all kinds of extra work on every request in order to detect any changes that are made to the webapp between requests. Generally, caching will be enabled via an environment variable set like this: -Dorg.apache.tapestry.disable-caching=true but it could easily be in a startup script or similar, too. Remove the line entirely or set it to false and you should see it improve performance dramatically. The downside is you'll now have to restart the app to detect any changes made to the templates, page files, or properties files in the webapp. --sam On 12/7/06, Henry Chen [EMAIL PROTECTED] wrote: I'm running Tapestry 4.1.1 snapshot, tomcat 5.5 on two machines. The speed is kind of slow. I did a test on the workbench sample. The speed is much slower than browsing the workbench sample on tapestry website. Does anybody have this issue too? Any suggestions? Thanks a lot! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: RE: 4.1 Stability (Hi Jesse! :P)
if you look at the docs for tap 4.1, you'll see the contrib components there. I haven't used them all, but table definitely works. I haven't looked to see if it supports async operations now. My guess is that that work has yet to be completed, but it will still work the way it used to. I definitely have functional tables in a Tap4.1 app. --sam On 12/6/06, Daniel Tabuenca [EMAIL PROTECTED] wrote: What about the Contrib components available for 4.0? Will these work with 4.1? On 12/5/06, Daniel Tabuenca [EMAIL PROTECTED] wrote: So tacos 4.0 is definetly not compatible with Tapestry 4.1? If so, it would be nice to include old components and forward them to tapestry with a not that they are deprecated. On 12/5/06, andyhot [EMAIL PROTECTED] wrote: No, not really... I've recently started tacos-4.1.0 snapshot releases... but they only contain the sitemap components = really cool way to get an instant menu system in your app. Anyway, some tacos components can now be replaced with the ones tapestry provides, which ones are you currently using ? For instance tacos:AjaxForm can now be Form with async=true So, i wasn't planning on including tacos:AjaxForm and such in tacos-4.1.0 but perhaps we can ease the migration process by adding them + making them forward to tapestry's ones Daniel Tabuenca wrote: If I'm currently using 4.0.2+Tacos, can someone tell me if I can upgrade to 4.1+Tacos and incrmenetally port my pages that use tacos components to the new 4.1 ajax framework? On 12/5/06, Sam Gendler [EMAIL PROTECTED] wrote: Given the parameters that you describe for your app, I'd definitely go with 4.1. The only reason I wouldn't is if you knew you were going to be building a very large app that was going to use a significant percentage of the API, since in that case, you might struggle keeping up with changes. But all the baseline tapestry functionality works 98% of the time and I imagine that the API in the core is already pretty stable. Bugs may come and go, but at least you shouldn't be rewriting entire functions to match some new interface. And 4.1 is unquestionably superior to tap + tacos for ajax functionality (although tacos has some nice components that haven't been ported yet. But they should be pretty simple to do yourself, shoudl the need arise). --sam On 12/5/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Thanks! My app is launched in 4.0 right now, but the next version will probably be launched January 31st, so that was part of the reason I was aching to go for 4.1 since there's still 2 months to go for bug fixes, etc... Though I suppose we *should* schedule Christmas somewhere in there ;) Greg -Original Message- From: news [mailto:[EMAIL PROTECTED] Behalf Of Ron Piterman Sent: Tuesday, December 05, 2006 1:23 PM To: users@tapestry.apache.org Subject: Re: 4.1 Stability (Hi Jesse! :P) If you need ajax, you can't go around 4.1 - if you don't, 4.0 has some advantages (as far as I can see) - such as much smaller javascript footprint for form validation, and stability - However, Jesse does a great work in fixing bugs in 4.1 very fast, I go to sleep in Europe and Jesse fixes the bugs at day time in the states, so the next morning a new version is out - thats amazing ! It is not so easy to recommend anything in active development for production - I can just say - I am working on a project which should go in production on Jan 1st and am using 4.1 --- Cheers, Ron Cyrille37 wrote: Hi Jesse, You think we have to use the 4.1 vs. 4.0. For example I'm learning Tapestry for a project which will really start in january. Will you tell me to use the 4.1 ? thanks cyrille Jesse Kuhnert a écrit : I think it would reckless of me to recommend anything that may or may not affect anyone's job/career.. That being said - if it were me - yeah I'd totally go for it. It's probably been a mistake to wait so long for 4.1.1 to come out anyways. Probably I'll just fix this validation message issue and release it. On 12/5/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Okay, I know Jesse is probably fed up with these types of questions! And we've gone over it before, about 4.1, 5.0, roadmaps, etc, a couple weeks ago. The 4.1 snapshot that's out right now, for a relatively simple app - no custom components, hivemind services, Java 1.4 so no annotations, and maybe a sprinkle of DOJO stuff (hence the reason to switch to 4.1!!) - would moving from 4.0 to 4.1 be a horrible idea? I skimmed over a lot of the open issues on JIRA and none seem too severe, or too widespread to some of the proven core of tapestry.
Re: Tapestry is slow on my machine.
Yes definitely. Disable caching has a HUGE performance hit (more then you'd think). It also eventually causes your program to run out of memory I've found. On 12/7/06, Sam Gendler [EMAIL PROTECTED] wrote: Do you have caching disabled? If you do, then tapestry is doing all kinds of extra work on every request in order to detect any changes that are made to the webapp between requests. Generally, caching will be enabled via an environment variable set like this: -Dorg.apache.tapestry.disable-caching=true but it could easily be in a startup script or similar, too. Remove the line entirely or set it to false and you should see it improve performance dramatically. The downside is you'll now have to restart the app to detect any changes made to the templates, page files, or properties files in the webapp. --sam On 12/7/06, Henry Chen [EMAIL PROTECTED] wrote: I'm running Tapestry 4.1.1 snapshot, tomcat 5.5 on two machines. The speed is kind of slow. I did a test on the workbench sample. The speed is much slower than browsing the workbench sample on tapestry website. Does anybody have this issue too? Any suggestions? Thanks a lot! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Securing URL Parameters
Damian Krzeminski wrote: Dennis Sinelnikov wrote: Dear Fellow Tapestriers :), I need to implement an EngineService that will return a specific file living on a filesystem. I need to pass a parameter in the url that specifies which file to return. I've searched the tapestry list serve archives for an elegant solution, but nothing really caught my eye. My initial thought was to do a one-way hash of the file and pass it via the parameter in the url; when the url comes back the service would replicate the process by comparing the hashes of all the files and see which one matches; the one matches return to the user. I'm curious to see what others are doing in securing urls from malicious users. Sample code or any suggestions are greatly appreciated. Thanks, Dennis - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] I was looking for elegant solution for that problem as well. I ended up doing something similar to AssetService, which is I guess what you are trying to do as well. The code is here: http://scm.sipfoundry.org/rep/sipX/main/sipXconfig/web/src/org/sipfoundry/sipxconfig/components/DownloadService.java http://scm.sipfoundry.org/rep/sipX/main/sipXconfig/web/src/org/sipfoundry/sipxconfig/components/DownloadLink.java It's in subversion repository - you can get entire project from here: http://scm.sipfoundry.org/rep/sipX/main/sipXconfig If anybody comes up with something better I'd like to know that. Damian - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Thanks Sam and Damian. I guess the answer was right in front of my nose the whole time. ;) -Dennis - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tapestry is slow on my machine.
Slower than the website? Not sure what to say. I would probably need more definitive metrics on what you mean by slow . On 12/7/06, Henry Chen [EMAIL PROTECTED] wrote: I'm running Tapestry 4.1.1 snapshot, tomcat 5.5 on two machines. The speed is kind of slow. I did a test on the workbench sample. The speed is much slower than browsing the workbench sample on tapestry website. Does anybody have this issue too? Any suggestions? Thanks a lot! -- Jesse Kuhnert Tapestry/Dojo team member/developer Open source based consulting work centered around dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Bean validator - validation method not being called
A bit of validation grief here (Tapestry 4.0.2), I hope someone can help or
provide an example of their own of this (besides the one in Kent Tongs
book).
I'm trying to create a custom validator that grabs maxLength and required
info from the data model. The Bean I define as the validator takes 3
parameters which are being set ok when the form is submitted but the *
validate* method is not called, and despite trying variations to acheive
this it still does not work.
Best elaborated in code:
Validator Bean:
public class DataObjectFieldValidator extends BaseValidator {
// *** These fields are populated OK via their setters
private String dataObjectName;
private String fieldName;
private DataContext dataContext;
// This does not get called
public void validate(IFormComponent iFormComponent, ValidationMessages
validationMessages, Object object) throws ValidatorException {
if (log.isInfoEnabled()) {
log.info(iFormComponent: + iFormComponent);
log.info(object: + object);
}
throw new ValidatorException(Why is this not getting here???);
.page spec:
bean name=myValidator class=com.validator.DataObjectFieldValidator
set name=dataContext value=ognl:dataContext/
set name=dataObjectName value=literal:MyDataObject/
set name=fieldName value=literal:myField/
/bean
component id=question type=TextField
binding name=value value=question/
binding name=validators value=bean:myValidator/
/component
Java page class:
// This will work for built in validators but not the custom bean
if (getDelegate().getHasErrors()) {
log.info(Entry Errors found: + getDelegate().getFirstError());
return null;
}
TIA,
Steve
Re: Bean validator - validation method not being called
ok naturally I stumbled over my own solution not 5 mins after posting this.
The solution was to change the bean-validator method to return true
public boolean getAcceptsNull() {
return true; // was false
}
The giveaway was when I actually typed something in and then got the
validation failure, I stupidly kept trying the empty field case. doh!
On 08/12/06, Steve Wells [EMAIL PROTECTED] wrote:
A bit of validation grief here (Tapestry 4.0.2), I hope someone can help
or provide an example of their own of this (besides the one in Kent Tongs
book).
I'm trying to create a custom validator that grabs maxLength and required
info from the data model. The Bean I define as the validator takes 3
parameters which are being set ok when the form is submitted but the *
validate* method is not called, and despite trying variations to acheive
this it still does not work.
Best elaborated in code:
Validator Bean:
public class DataObjectFieldValidator extends BaseValidator {
// *** These fields are populated OK via their setters
private String dataObjectName;
private String fieldName;
private DataContext dataContext;
// This does not get called
public void validate(IFormComponent iFormComponent, ValidationMessages
validationMessages, Object object) throws ValidatorException {
if (log.isInfoEnabled()) {
log.info(iFormComponent: + iFormComponent);
log.info(object: + object);
}
throw new ValidatorException(Why is this not getting here???);
.page spec:
bean name=myValidator class=com.validator.DataObjectFieldValidator
set name=dataContext value=ognl:dataContext/
set name=dataObjectName value=literal:MyDataObject/
set name=fieldName value=literal:myField/
/bean
component id=question type=TextField
binding name=value value=question/
binding name=validators value=bean:myValidator/
/component
Java page class:
// This will work for built in validators but not the custom bean
if (getDelegate().getHasErrors()) {
log.info(Entry Errors found: + getDelegate().getFirstError());
return null;
}
TIA,
Steve
Re: Decision of whether to use tapestry
Hi, Wow! Thanks for your reply! I didn't figure out that anyone will bother to help me out as this is not a technical question. Actually, I haven't been expressed my question very well. Here are a few points I like to clarify: 1. The page that my client submit will eventually sit inside the the same web application as the tapestry component (just copy the page into the exploded folder under web application server). There will be only one web application (pages that client submitted, together with the tapestry component/code, service, persistence classes). 2. Only one framework will be chosen. Currently I'm using Struts Tiles as I'm familiar with struts, and it took a lot of pain to do this kind of 'portlet' thing and it requires another template file to specify the look feel of the poll. 3. I have a very tight schedule.. haha.. Therefore, I can't afford to learn tapestry and throw it away. So, have to ask experts like you who have worked with Tapestry before. My question is, can tapestry do this kind of thing like: Users are flexible to choose the layout, look feel of the poll It can be in a table: if display result table tr jwcid=[EMAIL PROTECTED] sample answer /tr/table /if It can also be a plain text: if display result span jwcid=[EMAIL PROTECTED] sample answer /span /if The page consists of the code above doesn't need extra configuration (eg. in xml files) in order to use the component. Thanks alot! Best Regards, Guang Sheng On 12/8/06, Sam Gendler [EMAIL PROTECTED] wrote: I typed up a long response, but then reread your question and I think maybe I need some clarification. I included my original response below in case it answers your question. If you are looking for something that can be included in any page, rendered by any framework, then I'm not sure you really want to use Tapestry. The only way you are going to build something that can be used absolutely anywhere is to render the poll entirely in html and javascript. Take a look at dojo for examples of lots of widgets that can be used in any web page by simply including the correct js files. However, dojo does leave the backend processing as an exercise for the user, rather than providing a service to handle storing and rendering user input. The difficult thing in your concept is submitting the results back to a server which will maintain totals and render them back to the browser, either graphically, or maybe just as a data structure that the browser can then use to render graphically. Tapestry can be used to do this, fairly easily, but in general, Tapestry is a fairly stateful framework that is used for building applications rather than just widgets that can be inserted into other apps. You could implement an IExternalPage which receives the selected answer and poll id in the URL, stores the answer against the poll id, and serves up totals. The only real caveat is that your tapestry-based pollserver is likely to be on a different host than the containing page, so you'll have to use cross domain techniques to allow tapestry to serve up js that can interact with the template provided in the containing page. This is basically just a matter of serving up js as a string and then eval()'ing that string within the context of the containing document. There are lots of discussions of cross-domain js on the web, so I'll leave that to you to research. You'd have the same problem with any framework you might choose to implement the backend in. Now, if you were just talking about building a tapestry poll component that can be used only in other Tapestry applications, the answer is definitely yes and I have a fairly detailed answer below: Yes, it is possible. There are a lot of parallels between your component and the contrib:Table component that comes with Tapestry (although the table is likely to be much more complex). Just to give you some concepts to refer to in your research, here's brief outline if what you'd likely do. Create a poll component that takes some data structure that defines the poll and the current results (assuming you also want to display results there). The poll component iterates over each poll answer rendering an @Block component that is provided by the page template. The @Block component contains all of the template code necessary to render a single answer of the poll. If the user wants a table, they open the table tag in their template, then include an @Block component which renders a single table row (or column, depending upon preference). You can use a different Block component to render a link to the results, a submit button, or anything else you care for. If you provide reasonable defaults, many users will never have to define a Block at all in order to use your poll. Your component is only responsible for providing default layout and data structures, but everything is overloadable via Blocks. Something like the following (I'll use a list this time, just to show the difference):
Re: Re: Decision of whether to use tapestry
Well, the asnwer to your question is still yes, but it isn't a 'normal' use of Tapestry much as it isn't obvious how to do it in struts, either. As a result, I'd recommend that you don't use Tapestry. Given your tight schedule and lack of familiarity with the framework, I suspect you'll have a working application faster if you stick with what you know. --sam On 12/7/06, Deep Blue [EMAIL PROTECTED] wrote: Hi, Wow! Thanks for your reply! I didn't figure out that anyone will bother to help me out as this is not a technical question. Actually, I haven't been expressed my question very well. Here are a few points I like to clarify: 1. The page that my client submit will eventually sit inside the the same web application as the tapestry component (just copy the page into the exploded folder under web application server). There will be only one web application (pages that client submitted, together with the tapestry component/code, service, persistence classes). 2. Only one framework will be chosen. Currently I'm using Struts Tiles as I'm familiar with struts, and it took a lot of pain to do this kind of 'portlet' thing and it requires another template file to specify the look feel of the poll. 3. I have a very tight schedule.. haha.. Therefore, I can't afford to learn tapestry and throw it away. So, have to ask experts like you who have worked with Tapestry before. My question is, can tapestry do this kind of thing like: Users are flexible to choose the layout, look feel of the poll It can be in a table: if display result table tr jwcid=[EMAIL PROTECTED] sample answer /tr/table /if It can also be a plain text: if display result span jwcid=[EMAIL PROTECTED] sample answer /span /if The page consists of the code above doesn't need extra configuration (eg. in xml files) in order to use the component. Thanks alot! Best Regards, Guang Sheng On 12/8/06, Sam Gendler [EMAIL PROTECTED] wrote: I typed up a long response, but then reread your question and I think maybe I need some clarification. I included my original response below in case it answers your question. If you are looking for something that can be included in any page, rendered by any framework, then I'm not sure you really want to use Tapestry. The only way you are going to build something that can be used absolutely anywhere is to render the poll entirely in html and javascript. Take a look at dojo for examples of lots of widgets that can be used in any web page by simply including the correct js files. However, dojo does leave the backend processing as an exercise for the user, rather than providing a service to handle storing and rendering user input. The difficult thing in your concept is submitting the results back to a server which will maintain totals and render them back to the browser, either graphically, or maybe just as a data structure that the browser can then use to render graphically. Tapestry can be used to do this, fairly easily, but in general, Tapestry is a fairly stateful framework that is used for building applications rather than just widgets that can be inserted into other apps. You could implement an IExternalPage which receives the selected answer and poll id in the URL, stores the answer against the poll id, and serves up totals. The only real caveat is that your tapestry-based pollserver is likely to be on a different host than the containing page, so you'll have to use cross domain techniques to allow tapestry to serve up js that can interact with the template provided in the containing page. This is basically just a matter of serving up js as a string and then eval()'ing that string within the context of the containing document. There are lots of discussions of cross-domain js on the web, so I'll leave that to you to research. You'd have the same problem with any framework you might choose to implement the backend in. Now, if you were just talking about building a tapestry poll component that can be used only in other Tapestry applications, the answer is definitely yes and I have a fairly detailed answer below: Yes, it is possible. There are a lot of parallels between your component and the contrib:Table component that comes with Tapestry (although the table is likely to be much more complex). Just to give you some concepts to refer to in your research, here's brief outline if what you'd likely do. Create a poll component that takes some data structure that defines the poll and the current results (assuming you also want to display results there). The poll component iterates over each poll answer rendering an @Block component that is provided by the page template. The @Block component contains all of the template code necessary to render a single answer of the poll. If the user wants a table, they open the table tag in their template, then include an @Block component which renders a single table row (or column, depending upon
