Re: [eclipselink-users] EclipseLink JpaEntityManager with JBoss Seam

["Tim Hollosy" <hollosyt@xxxxxxxxx>]

Ah, I was thinking getCurrentChanges...

./tch


On Mon, Jul 14, 2008 at 1:57 AM, Mathias Walter <mathias.walter@xxxxxxx> wrote:
> Hi,
>
>> If you just committed wouldn't it make sense for the change set to be
>> empty/null?
>
> according to the doc of UnitOfWork:
>
> public UnitOfWorkChangeSet getCurrentChanges()
> ADVANCED: This method Will Calculate the chages for the UnitOfWork. Without
> assigning sequence numbers
> This is a Computationaly intensive operation and should be avoided unless
> necessary. A valid changeSet, with sequencenumbers can be collected from the
> UnitOfWork After the commit is complete by calling
> unitOfWork.getUnitOfWorkChangeSet()
>
> AND
>
> public UnitOfWorkChangeSet getUnitOfWorkChangeSet()
> ADVANCED: Returns the currentChangeSet from the UnitOfWork. This is only
> valid after the UnitOfWOrk has commited successfully.
>
> I do not use UnitOfWork explicit. I do tx = em.getTransaction(),
> em.merge(entity) and then tx.commit(). em.getUnitOfWork() returns the
> UnitOfWork in this way also. But why is the UnitOfWorkChangeSet null?
>
> In the log I can see that only the changed fields of the entity are included
> in the update SQL statement. So the changeset is calculated.
>
> How to access it?
>
> --
> Regards,
> Mathias
>
>>
>> ./tch
>>
>>
>> On Sun, Jul 13, 2008 at 3:45 PM, Mathias Walter
>> <mathias.walter@xxxxxxx> wrote:
>> > Hi,
>> >
>> > I can call entityManager.getDelegate() which returns the EclipseLink
>> > JpaEntityManager. Unfortunatelly,
>> getUnitOfWork().getUnitOfWorkChangeSet()
>> > returns null after commit.
>> >
>> > How can I get the UnitOfWorkChangeSet? Do I have to enable
>> something else?
>> >
>> > --
>> > Regards,
>> > Mathias
>> >
>> >> -----Original Message-----
>> >> From: eclipselink-users-bounces@xxxxxxxxxxx
>> >> [mailto:eclipselink-users-bounces@xxxxxxxxxxx] On Behalf Of
>> >> Mathias Walter
>> >> Sent: Sunday, July 13, 2008 10:03 AM
>> >> To: 'EclipseLink User Discussions'
>> >> Subject: [eclipselink-users] EclipseLink JpaEntityManager
>> >> with JBoss Seam
>> >>
>> >>
>> >> Hi,
>> >>
>> >> I'm using JBoss Seam and EclipseLink together. Now I want to
>> >> access the
>> >> ObjectChangeSets.
>> >> But they are only accessable via the
>> >> org.eclipse.persistence.jpa.JpaEntityManager and not via
>> >> javax.persistence.EntityManager or via the Seam injected
>> >> org.jboss.seam.persistence.EntityManagerProxy.
>> >>
>> >> Does anyone how to access the JpaEntityManager from Seam or
>> >> configure Seam
>> >> to use the JpaEntityManager instead of EntityManagerProxy?
>> >>
>> >> --
>> >> Kind regards,
>> >> Mathias
>> >>
>> >> _______________________________________________
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>> >
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