[appengine-java] Problem with persist a child class

[lisandrodc]

Hi! I have a problem with persist a child class.
The classes are:

The parent class:


@PersistenceCapable

@Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE)
public  abstract class Fecha   {

        @PrimaryKey
        @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
        private Key id;
        @Persistent
        private String nombre;
        @Persistent
        private Date fechaIni;
        @Persistent
        private Date fechaFin;

        @Persistent(defaultFetchGroup = "true")
        List<Partido> partidos;

The child class:

@PersistenceCapable

public class RegFechaUsuario extends Fecha  {

        @Persistent
        private int puntos;
        @Persistent
        private Long idUsuarioFecha;
        @Persistent
        private Long idFechaOriginal;


And the code of run the exception is:
Transaction tx = pm.currentTransaction();
                try {
                        tx.begin();

                        pm.makePersistentAll(regFechaUsuario);
                      //here is the exception
                        tx.commit();

And the regFechaUsuario is created with the build:

public RegFechaUsuario(String nombre, Date fechaIni, Date fechaFin,
                         Long idUsuarioFecha, Long idFechaOriginal, 
List<Partido>partidos)
{
                //super(nombre,fechaIni,fechaFin,partidos);
                this.puntos = 0;
                this.idUsuarioFecha = idUsuarioFecha;
                this.idFechaOriginal = idFechaOriginal;
                this.partidos=partidos;
        }

The exception is:
Problem accessing /Prode/JugarFecha.action. Reason:

    java.lang.Long cannot be cast to java.lang.String

Caused by:

java.lang.ClassCastException: java.lang.Long cannot be cast to
java.lang.String
        at
org.datanucleus.store.appengine.DatastoreRelationFieldManager.checkForParentSwitch(DatastoreRelationFieldManager.java:
202)
        at org.datanucleus.store.appengine.DatastoreRelationFieldManager
$1.setObjectViaMapping(DatastoreRelationFieldManager.java:133)
        at org.datanucleus.store.appengine.DatastoreRelationFieldManager
$1.apply(DatastoreRelationFieldManager.java:112)
        at
org.datanucleus.store.appengine.DatastoreRelationFieldManager.storeRelations(DatastoreRelationFieldManager.java:
81)
        at
org.datanucleus.store.appengine.DatastoreFieldManager.storeRelations(DatastoreFieldManager.java:
955)
        at
org.datanucleus.store.appengine.DatastorePersistenceHandler.storeRelations(DatastorePersistenceHandler.java:
546)
        at org.datanucleus.store.appengine.DatastorePersistenceHandler.

Regards
Lisandro

-- 
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 google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine-java+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine-java?hl=en.