Hi! I have tried delete my local_db and the problem persist.
The exception is in the next code, in the call of the build method
"RegFechaUsuario":
ControladorFecha cF = new ControladorFecha();
System.out.println("nombre " + nuevaFecha.getNombre());
System.out.println("fecha ini " + fechaOriginal.getFechaIni());
System.out.println("fecha fin " + fechaOriginal.getFechaFin());
System.out.println("idUsuario " + idUsuario);
System.out.println("idFecha " + fechaOriginal.getId().getId());
System.out.println("partidos " + nuevaFecha.getPartidos());
/*Here print in console:
na fecha 4
us id 7
nombre f1
fecha ini Fri Jan 01 00:00:00 UTC 2010
fecha fin Fri Jan 01 00:00:00 UTC 2010
idUsuario 7
idFecha 4
partidos [model.part...@973678]*/
RegFechaUsuario regFechaUsuario = new
RegFechaUsuario(nuevaFecha.getNombre(),fechaOriginal.getFechaIni(),fechaOriginal.getFechaFin(),idUsuario,fechaOriginal.getId().getId(),nuevaFecha.getPartidos());
cF.crearRegFechaUsuario(regFechaUsuario);
.....
The code of method:
public void crearRegFechaUsuario(RegFechaUsuario regFechaUsuario) {
Transaction tx = pm.currentTransaction();
try {
tx.begin();
//here is exception
pm.makePersistentAll(regFechaUsuario);
tx.commit();
} finally {
// pm.close();
if (tx.isActive()) {
tx.rollback();
}
}
}
Regards and thanks-
On 25 sep, 18:35, andy stevko <[email protected]> wrote:
> Hi Lisandro,
> Perhaps you didn't understand my last line of reasoning re: is your
> datastore empty...
> I suspect that the schema for your classes has migrated - i.e. a member that
> was Long and is now String or vice-versa
>
> A close read of the datastore docs
> says:http://code.google.com/appengine/docs/java/datastore/dataclasses.html
>
> If an entity has a property whose value is of a different type than the
> corresponding field in the object, JDO attempts to cast the value to the
> field type. If the value cannot be cast to the field type, JDO throws a
> ClassCastException. In the case of numbers (long integers and double-width
> floats), the value is converted, not cast. If the numeric property value is
> larger than the field type, the conversion overflows without throwing an
> exception.
>
> --Andy
>
> On Sat, Sep 25, 2010 at 1:40 PM, lisandrodc <[email protected]> wrote:
> > Hi! Andy I can't change the type of a member from String to Long
> > becasue
> > it is an internal error of datanucleus in google apps, I I do not find
> > way of solving it.
> > All 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)
>
>
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