[ http://issues.apache.org/jira/browse/JDO-368?page=all ]

Craig Russell resolved JDO-368:
-------------------------------

Resolution: Invalid
Assign To: Craig Russell

The AttachCallback methods are called during makePersistent if there is a de
tached instance among the reachable instances of the parameter to makePersis
tent.

During makePersistent on a detached instance, a persistent copy of the detac
hed instance is made (or an existing persistent instance in the cache with t
he same object identity is located).

Thus, there are two distinct instances: the detached instance; and the corre
sponding persistent instance.

The jdoPreAttach method is invoked on the detached instance.

The jdoPostAttach method is invoked on the persistent instance, with the det
ached instance as the parameter.



>  AttachCallback javadoc issue
> -----------------------------
>
>          Key: JDO-368
>          URL: http://issues.apache.org/jira/browse/JDO-368
>      Project: JDO
>         Type: Bug

>   Components: api20
>     Versions: JDO 2 rc1
>  Environment: N/A
>     Reporter: Dave
>     Assignee: Craig Russell

>
> Javadoc issue.
> Descriptions of the AttachCallback methods appear to be copied from Detach
Callback.  A copy is made during Detach, but not Attach.  Which instance are
 these methods executed on?  The attaching copy, or the persistent copy?
> jdoPostAttach(java.lang.Object attached)
>           This method is called during the execution of PersistenceManager
.makePersistent(java.lang.Object) on the persistent instance after the copy 
is made.
>  void 	jdoPreAttach()
>           This method is called during the execution of PersistenceManager.makePer
sistent(java.lang.Object) on the detached instance before the copy is made.

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