Which bit of code does the blocking on the server? I'm getting what looks
very much like a threading issue. I've looked at all the methods below and
can't see any obvious sync code... I'm using 1.3-beta3
at
org.apache.wicket.util.lang.PropertyResolver$MethodGetAndSet.getValue(PropertyResolver.java:1034)
at
org.apache.wicket.util.lang.PropertyResolver.getObjectAndGetSetter(PropertyResolver.java:247)
at
org.apache.wicket.util.lang.PropertyResolver.getValue(PropertyResolver.java:89)
at
org.apache.wicket.model.AbstractPropertyModel.getObject(AbstractPropertyModel.java:110)
at org.apache.wicket.Component.getModelObject(Component.java:1293)
at org.apache.wicket.Component$2.compare(Component.java:540)
at org.apache.wicket.Component.setModelObject(Component.java:2522)
at
org.apache.wicket.markup.html.form.FormComponent.updateModel(FormComponent.java:1002)
at org.apache.wicket.markup.html.form.Form$14.validate(Form.java:1642)
at
org.apache.wicket.markup.html.form.Form$ValidationVisitor.formComponent(Form.java:160)
at
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrderHelper(FormComponent.java:403)
at
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrderHelper(FormComponent.java:390)
at
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrderHelper(FormComponent.java:390)
at
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrderHelper(FormComponent.java:390)
at
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrderHelper(FormComponent.java:390)
at
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrder(FormComponent.java:368)
at
org.apache.wicket.markup.html.form.Form.visitFormComponentsPostOrder(Form.java:1004)
at
org.apache.wicket.markup.html.form.Form.updateFormComponentModels(Form.java:1637)
at org.apache.wicket.markup.html.form.Form.process(Form.java:834)
at
org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:783)
at
org.apache.wicket.ajax.form.AjaxFormSubmitBehavior.onEvent(AjaxFormSubmitBehavior.java:126)
at
org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:163)
at
org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:268)
at
org.apache.wicket.request.target.component.listener.BehaviorRequestTarget.processEvents(BehaviorRequestTarget.java:100)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:90)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1032)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1108)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1177)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:500)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:261)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:127)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:595)
Matej Knopp-2 wrote:
>
> There is no way that ajax requests can be processed without blocking.
> a) ajax requests are ordered on client into queues
> b) requests are blocked on target page (not session) on server side
>
> -Matej
>
> On 9/7/07, Sam Hough <[EMAIL PROTECTED]> wrote:
>>
>> A bit of the application lets you add items to a list using
>> AjaxFallbackButton. All works fine if you click the buttons slowly but if
>> I
>> click quickly I get exceptions that look like my code is running
>> concurrently (nullpointer where it can't happen if running in a single
>> thread).
>>
>> What behaviour is Wicket aiming to implement for Ajax and threading?
>>
>>
>>
>> Matej Knopp-2 wrote:
>> >
>> > Can you be more specific? What kind of concurrency issues?
>> >
>> > -Matej
>> >
>> > On 9/7/07, Sam Hough <[EMAIL PROTECTED]> wrote:
>> >>
>> >> oops, I posted on old forum...
>> >>
>> >> http://www.nabble.com/threading-question-tf841003.html
>> >>
>> >> [all request serialised on Session object]
>> >>
>> >> Is this true even for Ajax requests? Is whole life cycle effectively
>> >> single
>> >> threaded for a single session?
>> >>
>> >> I think I'm seeing a concurrency issue in my website (Wicket 1.3-beta3
>> >> and
>> >> lots of AjaxFallbackButton, I did listen to Igor)...
>> >>
>> >> Obviously would be tempting to sync on the Session but might break lot
>> of
>> >> the usability advantages of Ajax...
>> >>
>> >> Anybody got any top tips?
>> >> --
>> >> View this message in context:
>> >>
>> http://www.nabble.com/threading-issues---continued-tf4400569.html#a12552735
>> >> Sent from the Wicket - User mailing list archive at Nabble.com.
>> >>
>> >>
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>> >>
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>> >
>> >
>>
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