[jira] Updated: (OPENJPA-591) Entities are flushed before being detached or serialized

["Patrick Linskey (JIRA)" <ji...@apache.org>]

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

Patrick Linskey updated OPENJPA-591:
------------------------------------

    Fix Version/s: 1.1.0

> 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, 1.1.0, 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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