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https://issues.apache.org/jira/browse/TAP5-44?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Howard M. Lewis Ship updated TAP5-44:
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Issue Type: Improvement (was: Bug)
> enable creation of custom "onException" event handler
> -----------------------------------------------------
>
> Key: TAP5-44
> URL: https://issues.apache.org/jira/browse/TAP5-44
> Project: Tapestry 5
> Issue Type: Improvement
> Affects Versions: 5.0.15
> Reporter: Kristian Marinkovic
>
> make it possible to create custom "onException" event handler that are fired
> when custom Exceptions are thrown.
> i have the use case saying, that when an optimistic lock exception is thrown
> the same page with the newly loaded entity and an error message has to be
> displayed. Although it is possible to use the "onException" event it would be
> much nicer to have a "onExceptionFromOptimisticLocking" exception where the
> developer can put the exception handling into this specific method. In the
> near future we will have multiple other exceptions that need to be handled in
> a similar way.
> i prefer specific event handler to a bunch of instanceof statements
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