Home » Eclipse Projects » Remote Application Platform (RAP) » User UICallBack Problem
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| Re: User UICallBack Problem [message #487840 is a reply to message #487693] |
Thu, 24 September 2009 14:34   |
 Rüdiger Herrmann
Messages: 581
Registered: July 2009 |
Senior Member |
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Cheney,
I can reproduce what you describe. It may be related to this bug:
214464: [UICallback] Unable to close equinox if activated
https://bugs.eclipse.org/bugs/show_bug.cgi?id=214464
However, I can only reproduce the problem in Jetty (version 6.1.x,
others I don't know). In Tomcat a session is invalidated regardless
whether a UICallback is active or not.
Are you using Jetty for your production system?
Cheers,
Rüdiger
Cheney wrote:
> Hi All,
>
> My RAP application uses UICallBack Mechanism to asynchronously update
> the browser UI from a server thread.Because I need to use this
> UICallBack mechanism in different places in my application,so I add some
> code in IEntryPoint's createUI method:
>
> final String codeId=String.valueOf(display.hashCode());
> RWT.getSessionStore().addSessionStoreListener(new SessionStoreListener() {
>
> public void beforeDestroy(SessionStoreEvent event) {
> UICallBack.activate(codeId);
> // release resources
> }
> });
> UICallBack.activate(codeId);
>
> But I find that the beforeDestroy method never be called at the session
> invalidated,and the UIThread Object didn't destroy.I can find there are
> many UIThread in the JVM by the jconsole tool.
>
> But if I remove the UICallBack.activate(codeId); line code,the
> beforeDestroy method would be call and the UIThread object would be
> destroyed.
>
> I also add the code in the org.eclipse.rap.demo's createUI method,the
> result is the same.
>
> By the way,I use lRAP1.2RC4.
>
> is it a bug in UICallBack mechanism,how can i fix the problem?
>
> Theanks
> Cheney
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| Re: User UICallBack Problem [message #487952 is a reply to message #487840] |
Fri, 25 September 2009 02:39 |
Cheney
Messages: 9
Registered: July 2009 |
Junior Member |
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Hi Rüdiger,
Thanks for your reply.
Yes,I use Jetty 6.1.5 for my application.
Because I know that deploy the RAP application and enable equinox osgi
console on tomcat/linux, it would flood the tomcat logs with "osgi>"
prompts(I don't test the last release tomcat, if you know the problem is
fixed in the last release, please tell me, and i also try to test it).
Thanks for your help again! I will try to deploy my rap application in
tomcat container.
Best Regards,
Cheney
Rüdiger Herrmann wrote:
> Cheney,
>
> I can reproduce what you describe. It may be related to this bug:
> 214464: [UICallback] Unable to close equinox if activated
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=214464
> However, I can only reproduce the problem in Jetty (version 6.1.x,
> others I don't know). In Tomcat a session is invalidated regardless
> whether a UICallback is active or not.
> Are you using Jetty for your production system?
>
> Cheers,
> Rüdiger
>
>
> Cheney wrote:
>> Hi All,
>>
>> My RAP application uses UICallBack Mechanism to asynchronously update
>> the browser UI from a server thread.Because I need to use this
>> UICallBack mechanism in different places in my application,so I add
>> some code in IEntryPoint's createUI method:
>>
>> final String codeId=String.valueOf(display.hashCode());
>> RWT.getSessionStore().addSessionStoreListener(new
>> SessionStoreListener() {
>> public void beforeDestroy(SessionStoreEvent event) {
>> UICallBack.activate(codeId);
>> // release resources
>> }
>> });
>> UICallBack.activate(codeId);
>>
>> But I find that the beforeDestroy method never be called at the
>> session invalidated,and the UIThread Object didn't destroy.I can find
>> there are many UIThread in the JVM by the jconsole tool.
>>
>> But if I remove the UICallBack.activates(codeId); line code,the
>> beforeDestroy method would be call and the UIThread object would be
>> destroyed.
>>
>> I also add the code in the org.eclipse.rap.demo's createUI method,the
>> result is the same.
>>
>> By the way,I use lRAP1.2RC4.
>>
>> is it a bug in UICallBack mechanism,how can i fix the problem?
>>
>> Theanks
>> Cheney
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| Re: User UICallBack Problem [message #488217 is a reply to message #487969] |
Sat, 26 September 2009 01:45 |
Cheney
Messages: 9
Registered: July 2009 |
Junior Member |
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Hi Stefan,
Thanks for your reply.
Yes,this issue is solved,I have tested my application (use rap1.2RC4
target platform) in tomcat yestaday.
Best Regards,
Cheney
Stefan Roeck wrote:
> I think this issue is solved since Eclipse 3.4. At least, I haven't had
> any problems with -console since that version.
>
>> Because I know that deploy the RAP application and enable equinox osgi
>> console on tomcat/linux, it would flood the tomcat logs with "osgi>"
>> prompts(I don't test the last release tomcat, if you know the problem
>> is fixed in the last release, please tell me, and i also try to test it).
>>
>
>
>
> Regards,
> Stefan.
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