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From "Mario Ivankovits (JIRA)" <myfaces-...@incubator.apache.org>
Subject [jira] Created: (MYFACES-516) Capture and restore saveState Beans and messages when using redirect navigation rule
Date Mon, 05 Sep 2005 22:53:30 GMT
Capture and restore saveState Beans and messages when using redirect navigation rule
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         Key: MYFACES-516
         URL: http://issues.apache.org/jira/browse/MYFACES-516
     Project: MyFaces
        Type: Improvement
  Components: Implementation  
    Versions: Nightly Build    
    Reporter: Mario Ivankovits
 Attachments: RedirectTracker.java, impl.diff, tom.diff

Ok, this is a try to get what is described in the summary.

The heart of this patch is the RedirectTracker.

How it works:
*) In NavigationHandlerImpl when it comes to the redirect the RedirectTracker will capture
all required (save-state beans/messages) data. The tracker appends a special parameter (_rtid=)
to the redirect url so the saved state can be looked up in an map.
*) In LifeCycleImpl in restoreView the RedirectTracker will check for the special parameter
and lookup the map using its value. If an entry was found the data will be restored.
*) In UISaveState every bean rematerialized in restoreState will put it in a request-scoped
map

Known limitations:
*) need to make the number of tracked redirects configureable (back-button) currently its
hard-coded to 20
*) some, as I didnt tested it very well

I added this patch as a base to discuss what could be made better, though the goal is to add
this functionality to myFaces.
I hope some else jump in and we get a vital discussion about this topic.

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