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From "Michael Dick (JIRA)" <j...@apache.org>
Subject [jira] Closed: (OPENJPA-591) Entities are flushed before being detached or serialized
Date Wed, 28 May 2008 19:25:45 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Dick closed OPENJPA-591.
--------------------------------

    Resolution: Fixed

Sorry Patrick, I didn't notice your update until now. The changes currently do not affect
the EntityManager.clear() method contrary to my earlier remarks in the issue.

For now I'm going to close the issue, if we need to link em.clear with em.detach then we can
open a sub task. 

> Entities are flushed before being detached or serialized
> --------------------------------------------------------
>
>                 Key: OPENJPA-591
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-591
>             Project: OpenJPA
>          Issue Type: Sub-task
>          Components: kernel
>    Affects Versions: 1.0.0, 1.0.1, 1.0.2
>            Reporter: Michael Dick
>            Assignee: Michael Dick
>             Fix For: 1.0.3, 1.1.1, 1.2.0
>
>
> Entities are flushed if the entity is serialized or if the detach and detachAll methods
are invoked.
> Similar to OPENJPA-119 I believe this is a remnant of the JDO persistence layer. Whether
this is desirable in JPA or not, we need to be consistent whether the entity is detached via
clear, or the detach methods. 
> To resolve the problem I propose adding a new Compatibility option : flushBeforeDetach.
If this is set to true we'll keep the current JDO-like behavior. If false then we'll just
detach. I believe the same setting could apply when entities are serialized although it might
be clearer to have a separate option for serialization. 
> In the 1.0.x branch the flushBeforeDetach setting will only take effect for the detach,
detachAll and serialization path. It will not affect the EntityManager.clear() method - in
order to maintain backwards compatibility. 
> In 1.2.x + the clear method will also defer to the flushBeforeDetach setting. 

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