[richfaces-issues] [JBoss JIRA] Closed: (RF-4248) a serious design defect

[Alexander Dubovsky (JIRA)]

     [ https://jira.jboss.org/jira/browse/RF-4248?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexander Dubovsky closed RF-4248.
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> a serious design defect
> -----------------------
>
>                 Key: RF-4248
>                 URL: https://jira.jboss.org/jira/browse/RF-4248
>             Project: RichFaces
>          Issue Type: Bug
>    Affects Versions: 3.1.4
>            Reporter: zhou careprad
>            Assignee: Tsikhon Kuprevich
>            Priority: Minor
>
> We encounter a serious problem in the project that based on richfaces.
> for example:
> <h:panelGrid id="boxGrid" binding="#{bean.boxGrid}">
> 		
> 	</h:panelGrid>
> <a4j:commandButton ajaxSingle="true" id="testButton" value="TEST"
> 					binding="#{bean.testButton}"></a4j:commandButton>
> <h:panelGrid style="display:none">
> 	<a4j:poll id="poll" 
> 		actionListener="#{pollRequestBean.poll}"
> 		binding="#{pollRequestBean.pollButton}" interval="2000"
> 		/>
> 	</h:panelGrid>
> as you see,we want to modify the panelGrid(id="boxGrid") when user click the button(id="testButton"),then when rerender,some changes will show in the content
> of the panelgrid.And,the poll is also what we needed(the reason is affirmative). But this has a big problem--synchronization!
> in such case:a user click a button,richfaces fire the event to it's listener(alias as 'la'),and the listener(la) began to update the boxGrid(the back-binding of the 
> panelGrid),in the same time,the poll also come to request,what happen--the new comming request will update the richfaces' component tree,the boxGrid(the back-binding) 
> also update,but the listener(la) did not know this,it still hold the old model,this cause the change to the model has no mean to the ui.
> We have try many method to solve this problem,but all is in vain.you may think push,the push alos will update the component tree when the event is fired.
> I think this a serious problem to richfaces.

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