I meant to add, that I asked the same question a few weeks ago with no resolution - http://groups.google.com/group/google-appengine-java/browse_thread/thread/5e3b24316423385f/e348c376c2f8e7a8?lnk=gst&q=jpa+callback#e348c376c2f8e7a8
On Jun 9, 9:33 am, Simon <[email protected]> wrote: > I've had the same problem and to be honest my solution was to move > away from using JPA onto Objectify - at least there I know what is > happening, rather than relying on a partial implementation of the JPA > spec. It's much better suited to the underlying datastore anyway, > since JPA just isn't a good fit for BigTable. > > On Jun 8, 10:10 am, Sudhir Ramanandi <[email protected]> wrote: > > > > > Ohh, sorry.. in the example, I gave a wrong class name > > "UnownedRelationLoader" > > Its FooEntityListner and still it does not work > > > public class FooEntityListner { > > public void postLoad(BaseEntity entity) { > > --- > > > } > > ---------- Forwarded message ---------- > > From: Sudhir Ramanandi <[email protected]> > > Date: Tue, Jun 8, 2010 at 2:37 PM > > Subject: JPA entity listner callbacks are not invoked when using Query API > > To: [email protected] > > > When an entity is loaded using query, postLoad() call back is not invoked. > > postLoad() works only with entityManager.find(clazz, id) > > > As per the JPA specification: > > "The PostLoad method is invoked before a query result is returned or > > accessed or before an association is traversed." > > > Example: > > > @EntityListeners(value={FooEntityListner.class}) > > @Entity > > public class Foo extends BaseEntity { > > > } > > > public class UnownedRelationLoader { > > public void postLoad(BaseEntity entity) { > > --- > > } > > > Query q = getEntityManager().createQuery("select from " + > > Foo.class.getName()); > > > callback will not be called in above case. > > > Reported the issue > > herehttp://code.google.com/p/googleappengine/issues/detail?id=3326 > > Please vote for it. > > > -- > > Sudhir Ramanandihttp://www.ramanandi.org > > > -- > > Sudhir Ramanandihttp://www.ramanandi.org-Hide quoted text - > > > - Show quoted text -- Hide quoted text - > > - Show quoted text - -- 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.
