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Posted to dev@myfaces.apache.org by "Gary VanMatre (Updated) (JIRA)" <de...@myfaces.apache.org> on 2012/03/01 23:50:59 UTC
[jira] [Updated] (TRINIDAD-2230) adjustments to the
UIXComponentBase subscribeToEvent and unsubscribeFromEvent implementation
[ https://issues.apache.org/jira/browse/TRINIDAD-2230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gary VanMatre updated TRINIDAD-2230:
------------------------------------
Status: Patch Available (was: Open)
> adjustments to the UIXComponentBase subscribeToEvent and unsubscribeFromEvent implementation
> --------------------------------------------------------------------------------------------
>
> Key: TRINIDAD-2230
> URL: https://issues.apache.org/jira/browse/TRINIDAD-2230
> Project: MyFaces Trinidad
> Issue Type: Bug
> Components: Components
> Affects Versions: 2.0.1-core
> Environment: n/a
> Reporter: Gary VanMatre
>
> These new JSF 2 methods on the UIComponent (subscribeToEvent and unsubscribeFromEvent) has a very strange contract. The formal parameter for the listener is of type ComponentSystemEventListener. However, the method to query for the registered listeners getListenersForEventClass returns a list of SystemEventListener. The ComponentSystemEventListener and SystemEventListener do not have a common heritage so the subscribeToEvent and unsubscribeFromEvent creates a wrapper that implements the SystemEventListener.
> Since the resultant objects from getListenersForEventClass are a wrapper, there is no way to determine if the original listener added by calling subscribeToEvent is in the list of wrapper objects since the wrapper is a private nested class and doesn't necessary implement the ComponentSystemEventListener interfaces.
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