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Posted to dev@myfaces.apache.org by "sean schofield (JIRA)" <my...@incubator.apache.org> on 2005/04/27 23:59:25 UTC
[jira] Commented: (MYFACES-159) Deleted tree2 nodes cause fatal exception
[ http://issues.apache.org/jira/browse/MYFACES-159?page=comments#action_63928 ]
sean schofield commented on MYFACES-159:
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This is trickier than it seems. In some situations you may care a great deal if a node has been deleted and the user thinks is expecting something other than a silent log message.
What if we provided an attribute that took a value binding expression for a method to call in the event of a missing node? This way the developer can choose to handle it however they want. If no such method is provided, then a RuntimeException will be thrown (like what happens now.)
> Deleted tree2 nodes cause fatal exception
> -----------------------------------------
>
> Key: MYFACES-159
> URL: http://issues.apache.org/jira/browse/MYFACES-159
> Project: MyFaces
> Type: Bug
> Versions: 1.0.9 beta
> Environment: All
> Reporter: Rob Decker
> Assignee: sean schofield
>
> If a node gets deleted between the time it is clicked on and when the server processes
> the request I get this error:
>
> java.lang.IllegalArgumentException: Node with id 0:1:1. Failed to parse 0:1:1
>
> Basically the node's child was deleted and the index of the child list is no longer
> valid. It was valid when the tree was displayed. This gets thrown from
> TreeModel.getNodeById() when an IndexOutOfBoundsException is thrown by the child list.
> This should be handled more gracefully, like by adding a faces context message, "The selected item no longer exists.", and the processing of the rest of the tree nodes should continue. The end user can choose whether or not to show the messages.
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