Hi! I've tried it again and it works (maybe I had a typo in my config, who knows).
So I now get the pcStateManager back, but now another issue appears: the code uses Externalizable and the generated readExternal and writeExternal try to also write the parent fields. This is bad since it doesn't work for private fields... I will file a jiraffe. LieGrue, strub --- On Tue, 1/18/11, Mark Struberg <strub...@yahoo.de> wrote: > From: Mark Struberg <strub...@yahoo.de> > Subject: Re: way to restore the DetachedStateManager on deserialisation? > To: dev@openjpa.apache.org > Date: Tuesday, January 18, 2011, 4:31 PM > the pcStateManager is null after > deserialisation as far as I've seen. > > I'll give it another debug run tomorrow to be 100% sure > about that. > > > LieGrue, > strub > > --- On Tue, 1/18/11, Michael Dick <michael.d.d...@gmail.com> > wrote: > > > From: Michael Dick <michael.d.d...@gmail.com> > > Subject: Re: way to restore the DetachedStateManager > on deserialisation? > > To: dev@openjpa.apache.org > > Date: Tuesday, January 18, 2011, 4:26 PM > > Hi, > > > > DetachedStateField=true should do the trick. When you > use > > that configuration > > option does the statemanager get serialized and then > forget > > about _loaded? > > Or is it never serialized at all? > > > > -mike > > > > On Tue, Jan 18, 2011 at 4:33 AM, Mark Struberg <strub...@yahoo.de> > > wrote: > > > > > Hi! > > > > > > Currently detached entities behave completely > > different if they are 'just' > > > detached or if they got serialised/deserialised. > This > > is almost solely due > > > to _pcStateManager == null after the > serialisation. > > > > > > After serialisation we basically miss _dirty and > > _loaded information in our > > > entities, which has a few very bad side effects. > > > > > > The one which currently annoy me most is that > setting > > a field to null > > > doesn't get stored to the database. This is > caused > > because we don't have the > > > _loaded information anymore and thus cannot know > if > > the field is null > > > because it never got loaded or if it got set to > null > > manually. > > > > > > Now my question: is it possible to restore the > > DetachedStateManager on > > > deserialisation somehow? There is already an > option > > for if: > > > > > > <property name="openjpa.DetachState" > > > value="loaded(DetachedStateField=true)"/> > > > > > > But either I'm making something wrong, or it > just > > doesn't work. Any hints > > > on that? > > > > > > Btw: I'm mainly working with compiletime > enhanced > > classes, but I guess the > > > basic problem remains the same in any > enhancement > > case. > > > > > > txs and LieGrue, > > > strub > > > > > > > > > > > > > > > > > > > > >
