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Re: [eclipselink-users] Unexpected transaction commit on query.getResultList()
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Thanks, Gordon!
That's exactly what I needed.
On Fri, May 8, 2009 at 7:22 AM, Gordon Yorke <gordon.yorke@xxxxxxxxxx> wrote:
> The name of the method being called may suggest a commit but actually this
> code just writes the current changes to the database but leaves the
> transaction active. This is done once there are changes to the managed
> objects to ensure that your query will be resolved against those changes.
> If you do not want this behaviour you can set your EntityManager or Query
> flush mode (setFlushMode) to FlushModeType.COMMIT.
> --Gordon
>
> Mike Kienenberger wrote:
>>
>> I'm using EclipseLink 1.0.2. I have an update transaction started,
>> and I performed a select query.getResultList() call, and it attempted
>> to commit my transaction! I wasn't expecting that behavior -- is this
>> a bug in Eclipselink or a feature of JPA?
>>
>> When I was previously working with ToplinkEssentials, I noticed that
>> there was both a read and write connection pool, so I would have
>> thought that read-only queries would have used a separate connection
>> since EclipseLink is based off the same source.
>>
>> Thanks for your input.
>> -Mike
>>
>> at
>> org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithPreBuiltChangeSet(UnitOfWorkImpl.java:1370)
>> at
>> org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.writeChanges(RepeatableWriteUnitOfWork.java:300)
>> at
>> org.eclipse.persistence.internal.jpa.EntityManagerImpl.flush(EntityManagerImpl.java:384)
>> at
>> org.eclipse.persistence.internal.jpa.EJBQueryImpl.performPreQueryFlush(EJBQueryImpl.java:936)
>> at
>> org.eclipse.persistence.internal.jpa.EJBQueryImpl.executeReadQuery(EJBQueryImpl.java:378)
>> at
>> org.eclipse.persistence.internal.jpa.EJBQueryImpl.getResultList(EJBQueryImpl.java:517)
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>>
>
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