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List:       tapestry-user
Subject:    abort page rendering for exception handling
From:       "Rene Schneider" <Rene.Schneider2 () gmx ! de>
Date:       2004-11-30 20:32:47
Message-ID: 13676.1101846767 () www11 ! gmx ! net
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Hello! 
 
I have a page in which I use a ForEach component to iterate over a list. The
method 
that returns the list fetch the list items from database. Thereby can a 
java.lang.Exception occur. I catch the Exception in this method and want to
handle 
it. Therefor I activate another page, but than tapestry shows this error: 
 
Class org.apache.tapestry.components.Foreach$Enhance_607 overrides method 
'prepareForRender()' but does not invoke the super-class implementation. 
 
 
Is it not possible to abort the page rendering and go to another page? What
is the 
latest point where I can go to another page than the activated page or is it

impossible after activating a page? 
Where should I do the exception handling and the data fetching work that is
needed 
for rendering a page: in the action (listener method) that result in this
page or in 
the page itself? 
 
Thanks in advance! 
 
René 
 

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