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Date: Thu, 2 May 2013 09:44:16 +0000 (UTC)
From: "Jukka Zitting (JIRA)" <jira@apache.org>
To: dev@jackrabbit.apache.org
Message-ID: <JIRA.12645771.1367487775108.259656.1367487856119@arcas>
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Subject: [jira] [Created] (JCR-3586) NonExternalObservationListener marker
 interface
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Jukka Zitting created JCR-3586:
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             Summary: NonExternalObservationListener marker interface
                 Key: JCR-3586
                 URL: https://issues.apache.org/jira/browse/JCR-3586
             Project: Jackrabbit Content Repository
          Issue Type: New Feature
          Components: jackrabbit-api
            Reporter: Jukka Zitting
            Priority: Minor


It would be useful to have a marker interface like the following in the Jackrabbit API:

    interface NonExternalObservationListener extends ObservationListener { }

The observation dispatcher could then avoid delivering any external events to that listener.

For backwards compatibility such a listener should still use an "if (!event.isExternal()) { ... }" wrapper for event processing. That way the listener can avoid processing external events also when registered with an older repository that doesn't know about this marker interface.

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