I have the same issue and I am using wicket 1.2.6.. I am also developing an ajax application (desktop like)... Is it a known issue or bug in my code?
Thank you! Regards, Alex. Matej Knopp-2 wrote: > > You seem to be using 1.2, is that right? > > -Matej > > On 4/30/07, RedFury <[EMAIL PROTECTED]> wrote: >> >> Hi all, just want to say that I've relatively new to Wicket but am >> loving >> every minute of it! In just a few weeks of learning and programming I >> have >> been able to create a robust, javascripted, ajaxified app for our >> company. >> Great work to the devs! >> >> However, I have one problem which I'm a little unsure how to solve, its >> not >> an inherent problem with Wicket but more a problem with my ajax in >> wicket. >> I will try to go into as much detail as possible. >> >> I have a page with a set of tabs. Each tab will replace the main body of >> the page with different components using ajax. this is all working great. >> On top of this, the main page of the app has a global timer (using >> AbstractAjaxTimerBehavior) which does any updates required for the >> current >> tab. So lets say I have component C1 on tab T1 (T1 is a wicket panel >> which >> I replace when needed.) The ajax update will call an update() function >> which is overloaded for the different tab types. So T1.update() will call >> target.addComponent(C1); etc.. >> >> The problem I am having is in the timing between the ajax timer request >> and >> the ajax update request when the user hits a new tab. I am getting the >> following error: >> >> java.lang.NullPointerException >> at >> wicket.request.compound.DefaultRequestTargetResolverStrategy.resolveListenerIn >> terfaceTarget(DefaultRequestTargetResolverStrategy.java:295) >> at >> wicket.request.compound.DefaultRequestTargetResolverStrategy.resolveRenderedPa >> ge(DefaultRequestTargetResolverStrategy.java:228) >> at >> wicket.request.compound.DefaultRequestTargetResolverStrategy.resolve(DefaultRe >> questTargetResolverStrategy.java:153) >> at >> wicket.request.compound.AbstractCompoundRequestCycleProcessor.resolve(Abstract >> CompoundRequestCycleProcessor.java:48) >> at wicket.RequestCycle.step(RequestCycle.java:992) >> at wicket.RequestCycle.steps(RequestCycle.java:1084) >> at wicket.RequestCycle.request(RequestCycle.java:454) >> >> >> So it seems what is happening (this is my guess) is that the ajax >> requests >> for the timer update and the new tab update are being sent almost >> simultaneously. The first request is processed by the server and this >> actually changes the comoponents on the page. Then the second request >> comes >> in and its target behavior no longer exists because the first request >> replaced that component (panel) with something different. >> >> So I guess what I'm looking for is ideas on how to solve this problem? >> How >> does Wicket ajax work client side? Does it organize ajax request-response >> cycles one at a time, or can they be sent simultaneously? Also, is there >> a >> way I can hoook into the client code and stop the timer update from being >> called if we've already got a pending page-change ajax request. >> >> So I've waffled a bit, in short how do I stop the second ajax request >> from >> referencing behavior that the first one just got rid of ? >> >> Thanks, >> Red Fury >> >> -- >> View this message in context: >> http://www.nabble.com/Problem-with-concurren-ajax-requests-on-page-tf3667503.html#a10247552 >> Sent from the Wicket - User mailing list archive at Nabble.com. >> >> >> ------------------------------------------------------------------------- >> This SF.net email is sponsored by DB2 Express >> Download DB2 Express C - the FREE version of DB2 express and take >> control of your XML. No limits. Just data. Click to get it now. >> http://sourceforge.net/powerbar/db2/ >> _______________________________________________ >> Wicket-user mailing list >> Wicket-user@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/wicket-user >> > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > Wicket-user mailing list > Wicket-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wicket-user > > -- View this message in context: http://www.nabble.com/Problem-with-concurren-ajax-requests-on-page-tf3667503.html#a10392951 Sent from the Wicket - User mailing list archive at Nabble.com. ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
