I can see why messing with a new entity outside a transaction before persist is an issue if datanucleus.NontransactionalWrite is set to false, but I have both datanucleus.NontransactionalRead and datanucleus.NontransactionalWrite set to true and I still get the error. The puzzling thing is this error comes up only once in a while though the exact same code gets executed every time. Looks like something intermittent...at least for me.
On Sep 3, 12:30 am, Didier Durand <[email protected]> wrote: > Hi, > > This means that you are trying to act on an entity via the Persistence > Manager when this same entity is not yet under control of the PM. > > It usually happens when you do a new on a Class and do not call the > persist() function of the PM for that newly created instance before > doing what you try to do then to reach the exception that you mention. > > Hope it's clear even though without all details, I have to stay > abstract and generic... > > regards > didier > > On Sep 2, 8:45 pm, nksi <[email protected]> wrote: > > > > > I also have a similar problem. > > in my exsample: > > > @Entity > > class Test { > > @Id > > @Column(name = "ID") > > @GeneratedValue(strategy = GenerationType.IDENTITY) > > private Long id; > > @Column(nullable = false) > > private Boolean isLatest; > > > } > > > # service > > Test test = TestDao.getByCode("code") > > test.setIsLatest(false) > > TestDao.save(createTest()) > > > #warning-log > > Request completed without committing or rolling back transaction with > > id 7. Transaction will be rolled back. > > > When I comment out the line of "TestDao.save(createTest())", test is > > merged. > > And when i comment out the lines to merge, "TestDao.save" is success. > > I wanna merge and save for same Model. > > why can't i do it?plz tell me about it. > > > On 7月21日, 午前12:56, Sekhar <[email protected]> wrote: > > > > Anyone? Would appreciate just about any help you can give! > > > > On Jul 15, 8:45 am, Sekhar <[email protected]> wrote: > > > > > I pretty frequently get an error for my JPA entities saying an entity > > > > is "is detached yet this operation requires it to be attached" and the > > > > transaction isrolledback: > > > > "com.google.apphosting.utils.servlet.TransactionCleanupFilter > > > >handleAbandonedTxns: Request completed without committing or > > > >rollingbacktransaction with id 6520345908250195886. Transaction will > > > >berolledback." > > > > > What does this error mean and how do I get rid of this? I did check > > > > the DataNucleus docs and didn't really get any info on this. I have > > > > datanucleus.NontransactionalRead and datanucleus.NontransactionalWrite > > > > both set to true and open the transactions only to do the merge - is > > > > that the problem? E.g., something like: > > > > > List<MyEntity> list = query.getResultList(); > > > > MyEntity e0 = list.get(0); > > > > e0.setWhatever(whatever); > > > > > tx.begin(); > > > > entityManager.merge(e0); > > > > tx.commit(); -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
