Entities are flushed before being detached or serialized
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Key: OPENJPA-591
URL: https://issues.apache.org/jira/browse/OPENJPA-591
Project: OpenJPA
Issue Type: Sub-task
Components: kernel
Affects Versions: 1.0.2, 1.0.1, 1.0.0
Reporter: Michael Dick
Assignee: Michael Dick
Fix For: 1.0.3, 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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