Hi ! I have a problem when I persist and add a child (class "Equipo")
of an existent class( This class father already persisted, class
"Fecha"). The child class is not persisted and the error is:
Primary key for object of type Equipo is null.
Caused by:
java.lang.IllegalStateException: Primary key for object of type Equipo
is null.
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.getPkAsKey(DatastorePersistenceHandler.java:
446)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.updateObject(DatastorePersistenceHandler.java:
529)
at
org.datanucleus.state.JDOStateManagerImpl.flush(JDOStateManagerImpl.java:
4576)
at
org.datanucleus.ObjectManagerImpl.flushInternal(ObjectManagerImpl.java:
2814)
at org.datanucleus.ObjectManagerImpl.flush(ObjectManagerImpl.java:
2754)
....
The class that persist:
Transaction tx = pm.currentTransaction();
try {
tx.begin();
Partido par1 = null;
Equipo eq1 = this.devolverEquipo(idTorneo, idEqLocal);
Equipo eq2 = this.devolverEquipo(idTorneo,
idEqVisitante);
Equipo eq1b = copiarEquipo(eq1);
Equipo eq2b = copiarEquipo(eq2);
//eq1b and eq2b new instances of class
Equipo.
par1 = new Partido( eq1b, eq2b,
fecha, hora);
fechaAgreg.agregarPartido(par1);
FechaNormal fech = (FechaNormal)
pm.detachCopy(fechaAgreg);
pm.makePersistent(fech);
tx.commit();
} finally {
if (tx.isActive()) {
tx.rollback();
}
}
Regards
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