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From "Albert Lee (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (OPENJPA-2163) Lifecycle event callback occurs more often than expect
Date Sun, 01 Apr 2012 14:42:28 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-2163?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Albert Lee resolved OPENJPA-2163.
---------------------------------

    Resolution: Fixed
    
> Lifecycle event callback occurs more often than expect
> ------------------------------------------------------
>
>                 Key: OPENJPA-2163
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-2163
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 2.0.3, 2.1.2, 2.3.0, 2.2.1
>            Reporter: Albert Lee
>            Assignee: Albert Lee
>             Fix For: 2.3.0, 2.2.1
>
>         Attachments: OPENJPA-2163.trunk.patch
>
>
> A problem was uncovered in a scenario where multiple EntityManager instances created
from the same EntityManagerFactory, and each instance is initialized with a new instance of
a LifecycleListener instance, i.e.
> final EntityManager em = factory.createEntityManager();
> final EntityManager em2 = factory.createEntityManager();
> ...
> MyLifecycleListener l1 = new MyLifecycleListener();
> MyLifecycleListener l2 = new MyLifecycleListener();
> ...
> ((OpenJPAEntityManagerSPI)em).addLifecycleListener(l1, null);
> ((OpenJPAEntityManagerSPI)em2).addLifecycleListener(l2, null);
> When life cycle event occurs for a specific entity manager, all the listeners created
under the emf are being invoked. The expected behavior is only the listener registered in
the em from which the life cycle events are related should be called.

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