I found that this problem only happens when I'm inserting another entity from a different entity group in the same request. I know that you can only insert from one entity group in a transaction, but can't I insert into different entity groups in a single connection, but without an explicit transaction?
On Mar 20, 8:37 pm, Blake <[email protected]> wrote: > Okay, I'm replying to my own post here, because I've spent hours on > this, making no progress. I've even set the serialized object into my > entity, saved it, printed it out, evicted all entities from the > persistence manager, found the entity again, then printed out the > serialized object in that same request, and it all looks good. > > When I come back to the server in a second request to grab that > serialized object, it's gone. Only when I set it again in another > transaction does it stick. > > Any ideas? Is there some weird behavior of saving serialized objects > into a field that I might not be aware of? > > Why would this work on update, but not insert? > > On Mar 19, 1:32 am, Blake <[email protected]> wrote: > > > > > I thought this was working before, so I'm not sure if this is a PEPCAK > > problem... > > > I'm inserting an entity with aserializedcollection of > > otherserializedobjects. This stores correctly on updates, but when I set > > theserializedcollection on insert, it forgets the collection. Any > > ideas? Would you expect insert and update to handle theserialized > > collection of objects differently? > > > Thanks! > > > Here's how I'm doing it: > > > public class Foo{ > > ... > > > @Persistent(serialized="true") > > private Set<SomeSerializedObject> myObj; > > > ... > > > } > > > Foo f = new Foo(); > > f.setSomeSerializedObject(new SomeSerializedObject("foo bar")); > > Transaction tx = pm.currentTransaction(); > > try > > { > > tx.begin(); > > pm.makePersistent(f); > > tx.commit();} finally { > > > if(tx.isActive()) > > { > > tx.rollback(); > > } > > > } -- You received this message because you are subscribed to the Google Groups "Google App Engine" 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?hl=en.
