I have tried also:
tx.begin();
List<Equipo>listEquipos = new ArrayList<Equipo>();
listEquipos=unTorneo.getEquiposTorneo();
unTorneo.setEquiposTorneo(listEquipos);
unTorneo.agregarEquipo(unEquipo);
//pm is
JDOHelper.getPersistenceManagerFactory("transactions-optional");
JDOHelper.makeDirty(pm, "listEquipos");
pm.makePersistent(unTorneo);
tx.commit();
And it does not work...
Help me?
Thanks
Regards!
On Dec 30, 9:43 am, lisandro <[email protected]> wrote:
> Hi! Ikai, I have tried but it me did not work:
> I have tried but it me did not work.
> The modified code:
>
> tx.begin();
> JDOHelper.makeDirty(unTorneo.getEquiposTorneo(),
> "equiposTorneo");
> List<Equipo>listEquipos = unTorneo.getEquiposTorneo();
> unTorneo.setEquiposTorneo(listEquipos);
> unTorneo.agregarEquipo(unEquipo);
> pm.makePersistent(unTorneo);
> tx.commit();
>
> Thanks!
> Regards
>
> On Dec 29, 4:58 pm, "Ikai Lan (Google)" <[email protected]>
> wrote:
>
>
>
> > Objects are re-persisted if there are any fields that are marked "dirty".
> > Sometimes, when you add objects to a collection property, since the property
> > reference may not be marked "dirty", it will not be repersisted when the
> > PersistenceManager is closed. You can either:
>
> > 1. Call JDOHelper.makeDirty(entity, field) to mark the field as dirty
> > 2. Create a new, equivalent collection and point the equipos reference to it
> > 3. (98% sure this works) Change a value in another property, causing the
> > entire Entity to be persisted (App Engine entities are persisted whole, not
> > piecemeal as you might do in a relational database)
>
> > --
> > Ikai Lan
> > Developer Programs Engineer, Google App Engine
> > Blogger:http://googleappengine.blogspot.com
> > Reddit:http://www.reddit.com/r/appengine
> > Twitter:http://twitter.com/app_engine
>
> > On Wed, Dec 29, 2010 at 6:53 AM, lisandro <[email protected]> wrote:
>
> > > lisandrodc
> > > View profile
> > > More options Dec 29, 11:26 am
> > > Hi! I have a problem with the persistence of an existing object
> > > "Torneo" (with a empty collection of objects "Equipo").
> > > When I add elements to the collection and want to persist,
> > > sometimes persist and sometimes not persist in the
> > > datastore(Restarting the server of the application). The code of
> > > example:
> > > public void agregarEquipoConTorneo(Torneo unTorneo, Equipo unEquipo)
> > > {
> > > /*add Equipo with a existing "Torneo" in the
> > > datastore, the "unTorneo"(param) class obtain with:
> > > Torneo b =
> > > pm.getObjectById(model.Torneo.class, idTorneo);*/
> > > Transaction tx = pm.currentTransaction();
> > > try {
> > > tx.begin();
> > > unTorneo.agregarEquipo(unEquipo);
> > > //add unEquipo to collection "equipos"
> > > pm.makePersistentAll(unTorneo);
> > > tx.commit();
> > > System.out.println("persistioTorneoConEquipo");
> > > } finally {
> > > pm.close();
> > > if (tx.isActive()) {
> > > tx.rollback();
> > > }
> > > }
> > > Does it design someone of what this one happening?
> > > Thanks!
> > > Regards
> > > Lisandro
>
> > > --
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