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From "Leonardo Uribe (JIRA)" <...@myfaces.apache.org>
Subject [jira] [Commented] (MYFACES-3162) AJAX Broken when State Caching Mechanics turned off
Date Tue, 31 May 2011 19:03:47 GMT

    [ https://issues.apache.org/jira/browse/MYFACES-3162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13041756#comment-13041756
] 

Leonardo Uribe commented on MYFACES-3162:
-----------------------------------------

Yes, you're right. The solution is very simple, just if isHandlingStateCachingMechanics(facesContext)
returns false take the one passed as param.

Note myfaces state manager since 2.0.6 and 2.1.0 is org.apache.myfaces.application.StateManagerImpl,
so this param has sense when it is required to use the previous one org.apache.myfaces.application.jsp.JspStateManagerImpl
or a custom implementation that relies on the previous behavior, but take into account the
new behavior is preferred because it is more aligned with the spec "intention".

> AJAX Broken when State Caching Mechanics turned off
> ---------------------------------------------------
>
>                 Key: MYFACES-3162
>                 URL: https://issues.apache.org/jira/browse/MYFACES-3162
>             Project: MyFaces Core
>          Issue Type: Bug
>          Components: General
>    Affects Versions: 2.0.6
>         Environment: MyFaces 2.0.6, RichFaces 4.0.Final, Tomcat 6
>            Reporter: James G
>             Fix For: 2.0.7, 2.1.1
>
>         Attachments: MYFACES-3162-1.patch
>
>
> When the web configuration param "org.apache.myfaces.HANDLE_STATE_CACHING_MECHANICS"
is set to false, after the first ajax call, all further ajax calls fail.  The failure occurs
with a ViewExpiredException on the next ajax call.  The reason is that the sequence number
part of the view state is being lost during the first ajax call.  (See HtmlResponseStateManager.getViewState()
where baseState is lost when isHandlingStateCachingMechanics(facesContext) returns false.

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