[appengine-java] Re: Error javax.persistence.PersistenceException: Illegal argument

2011-03-04 Thread lisandrodc 
Hi Didier!...
To what part of the blog do you you recount that it is associated with
my worry?
Regards
Lisandro

On Feb 28, 2:40 am, Didier Durand durand.did...@gmail.com wrote:
 Sorry,

 Got confused with Objectify that I use now in place of JDO/JPA.

 Look at this blog:http://gae-java-persistence.blogspot.com/

 You have there the needed examples to solve your problem

 regards

 didier

 On Feb 27, 2:53 pm, lisandrodc lisandr...@gmail.com wrote:



  Thanks Didier, but @Parent It is not an annotation of JPA...
  link:http://www.datanucleus.org/products/accessplatform_1_1/jpa/annotation...
  What is what you say that I must place in the code?

  Regards
  Lisandro

  On 27 feb, 04:06, Didier Durand durand.did...@gmail.com wrote:

   Yes,

   You can't update 2 entities that are not related by a parent (@Parent)
   - child relationship in a single transaction else GAE creates them in
   2 separate entity groups and then throws an exception because a
   transaction can't update objects in more than 1 entity group.

   See parag Entity Groups 
   inhttp://code.google.com/appengine/docs/java/datastore/transactions.html

   regards

   didier

   On Feb 26, 8:49 pm, lisandrodc lisandr...@gmail.com wrote:

Hi ! I have an error at update an object:

public void agregarGrupoConUsuario(Usuario usuario,Long idGrupo) {

                EntityTransaction et= em.getTransaction();
                try {
                        et.begin();
                        ControladorGrupoTorneo cGT = new 
ControladorGrupoTorneo();
                        GrupoTorneo grTorneo = 
cGT.devolverGrupoTorneo(idGrupo);
                        usuario.agregarGrupoTorneo(grTorneo);
                        em.merge(usuario);
                        et.commit();
                       //the exception at commit;
                        System.out.println(persistioUsuarioConGrupo);
                } finally {

The error is:

Caused by: java.lang.IllegalArgumentException: can't operate on
multiple entity groups in a single transaction. found both Element {
  type: GrupoTorneo
  id: 3}

 and Element {
  type: Usuario
  id: 11

}

Class Usuario:

@Entity
public class Usuario {
        @Id
        @GeneratedValue(strategy = GenerationType.IDENTITY)
        private Key id;

        private String nombreUsuario;

        private String nombre;

        private String apellido;

        private String telefono;

        private String password;

        private String mail;

        private String imagen;

        private String ciudad;

        private String pais;
        @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.REMOVE,
                                    CascadeType.REFRESH, 
CascadeType.MERGE})
        private ListRegFechaUsuario listRegFechaUsuario;
        @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.REMOVE,
                    CascadeType.REFRESH, CascadeType.MERGE})
        private ListGrupoTorneo gruposTorneo;
    /**


Class GrupoTorneo:

@Entity
public class GrupoTorneo  {
        @Id
        @GeneratedValue(strategy = GenerationType.IDENTITY)
        private Key id;

        private String nombre;

        private String descripcion;

        private Date fechaCreacion;

        private Long idTorneo;

        private Long idUsuarioCreador;

        private String nombreUsuarioCreador;

        private Long idGrupo;
...
...

Solution?

Regards

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[appengine-java] Re: Error javax.persistence.PersistenceException: Illegal argument

2011-03-04 Thread Didier Durand 
Hi,

Look at

http://gae-java-persistence.blogspot.com/2009/10/executing-batch-gets.html



http://gae-java-persistence.blogspot.com/2009/10/optimistic-locking-with-version.html

regards

didier

On Mar 4, 1:45 pm, lisandrodc lisandr...@gmail.com wrote:
 Hi Didier!...
 To what part of the blog do you you recount that it is associated with
 my worry?
 Regards
 Lisandro

 On Feb 28, 2:40 am, Didier Durand durand.did...@gmail.com wrote:

  Sorry,

  Got confused with Objectify that I use now in place of JDO/JPA.

  Look at this blog:http://gae-java-persistence.blogspot.com/

  You have there the needed examples to solve your problem

  regards

  didier

  On Feb 27, 2:53 pm, lisandrodc lisandr...@gmail.com wrote:

   Thanks Didier, but @Parent It is not an annotation of JPA...
   link:http://www.datanucleus.org/products/accessplatform_1_1/jpa/annotation...
   What is what you say that I must place in the code?

   Regards
   Lisandro

   On 27 feb, 04:06, Didier Durand durand.did...@gmail.com wrote:

Yes,

You can't update 2 entities that are not related by a parent (@Parent)
- child relationship in a single transaction else GAE creates them in
2 separate entity groups and then throws an exception because a
transaction can't update objects in more than 1 entity group.

See parag Entity Groups 
inhttp://code.google.com/appengine/docs/java/datastore/transactions.html

regards

didier

On Feb 26, 8:49 pm, lisandrodc lisandr...@gmail.com wrote:

 Hi ! I have an error at update an object:

 public void agregarGrupoConUsuario(Usuario usuario,Long idGrupo) {

                 EntityTransaction et= em.getTransaction();
                 try {
                         et.begin();
                         ControladorGrupoTorneo cGT = new 
 ControladorGrupoTorneo();
                         GrupoTorneo grTorneo = 
 cGT.devolverGrupoTorneo(idGrupo);
                         usuario.agregarGrupoTorneo(grTorneo);
                         em.merge(usuario);
                         et.commit();
                        //the exception at commit;
                         
 System.out.println(persistioUsuarioConGrupo);
                 } finally {

 The error is:

 Caused by: java.lang.IllegalArgumentException: can't operate on
 multiple entity groups in a single transaction. found both Element {
   type: GrupoTorneo
   id: 3}

  and Element {
   type: Usuario
   id: 11

 }

 Class Usuario:

 @Entity
 public class Usuario {
         @Id
         @GeneratedValue(strategy = GenerationType.IDENTITY)
         private Key id;

         private String nombreUsuario;

         private String nombre;

         private String apellido;

         private String telefono;

         private String password;

         private String mail;

         private String imagen;

         private String ciudad;

         private String pais;
         @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.REMOVE,
                                     CascadeType.REFRESH, 
 CascadeType.MERGE})
         private ListRegFechaUsuario listRegFechaUsuario;
         @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.REMOVE,
                     CascadeType.REFRESH, CascadeType.MERGE})
         private ListGrupoTorneo gruposTorneo;
     /**
 

 Class GrupoTorneo:

 @Entity
 public class GrupoTorneo  {
         @Id
         @GeneratedValue(strategy = GenerationType.IDENTITY)
         private Key id;

         private String nombre;

         private String descripcion;

         private Date fechaCreacion;

         private Long idTorneo;

         private Long idUsuarioCreador;

         private String nombreUsuarioCreador;

         private Long idGrupo;
 ...
 ...

 Solution?

 Regards



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[appengine-java] Re: Error javax.persistence.PersistenceException: Illegal argument

2011-02-27 Thread lisandrodc 
Thanks Didier, but @Parent It is not an annotation of JPA...
link:
http://www.datanucleus.org/products/accessplatform_1_1/jpa/annotations.html
What is what you say that I must place in the code?

Regards
Lisandro

On 27 feb, 04:06, Didier Durand durand.did...@gmail.com wrote:
 Yes,

 You can't update 2 entities that are not related by a parent (@Parent)
 - child relationship in a single transaction else GAE creates them in
 2 separate entity groups and then throws an exception because a
 transaction can't update objects in more than 1 entity group.

 See parag Entity Groups 
 inhttp://code.google.com/appengine/docs/java/datastore/transactions.html

 regards

 didier

 On Feb 26, 8:49 pm, lisandrodc lisandr...@gmail.com wrote:

  Hi ! I have an error at update an object:

  public void agregarGrupoConUsuario(Usuario usuario,Long idGrupo) {

                  EntityTransaction et= em.getTransaction();
                  try {
                          et.begin();
                          ControladorGrupoTorneo cGT = new 
  ControladorGrupoTorneo();
                          GrupoTorneo grTorneo = 
  cGT.devolverGrupoTorneo(idGrupo);
                          usuario.agregarGrupoTorneo(grTorneo);
                          em.merge(usuario);
                          et.commit();
                         //the exception at commit;
                          System.out.println(persistioUsuarioConGrupo);
                  } finally {

  The error is:

  Caused by: java.lang.IllegalArgumentException: can't operate on
  multiple entity groups in a single transaction. found both Element {
    type: GrupoTorneo
    id: 3}

   and Element {
    type: Usuario
    id: 11

  }

  Class Usuario:

  @Entity
  public class Usuario {
          @Id
          @GeneratedValue(strategy = GenerationType.IDENTITY)
          private Key id;

          private String nombreUsuario;

          private String nombre;

          private String apellido;

          private String telefono;

          private String password;

          private String mail;

          private String imagen;

          private String ciudad;

          private String pais;
          @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.REMOVE,
                                      CascadeType.REFRESH, CascadeType.MERGE})
          private ListRegFechaUsuario listRegFechaUsuario;
          @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.REMOVE,
                      CascadeType.REFRESH, CascadeType.MERGE})
          private ListGrupoTorneo gruposTorneo;
      /**
  

  Class GrupoTorneo:

  @Entity
  public class GrupoTorneo  {
          @Id
          @GeneratedValue(strategy = GenerationType.IDENTITY)
          private Key id;

          private String nombre;

          private String descripcion;

          private Date fechaCreacion;

          private Long idTorneo;

          private Long idUsuarioCreador;

          private String nombreUsuarioCreador;

          private Long idGrupo;
  ...
  ...

  Solution?

  Regards



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[appengine-java] Re: Error javax.persistence.PersistenceException: Illegal argument

2011-02-27 Thread Didier Durand 
Sorry,

Got confused with Objectify that I use now in place of JDO/JPA.


Look at this blog: http://gae-java-persistence.blogspot.com/

You have there the needed examples to solve your problem

regards

didier

On Feb 27, 2:53 pm, lisandrodc lisandr...@gmail.com wrote:
 Thanks Didier, but @Parent It is not an annotation of JPA...
 link:http://www.datanucleus.org/products/accessplatform_1_1/jpa/annotation...
 What is what you say that I must place in the code?

 Regards
 Lisandro

 On 27 feb, 04:06, Didier Durand durand.did...@gmail.com wrote:

  Yes,

  You can't update 2 entities that are not related by a parent (@Parent)
  - child relationship in a single transaction else GAE creates them in
  2 separate entity groups and then throws an exception because a
  transaction can't update objects in more than 1 entity group.

  See parag Entity Groups 
  inhttp://code.google.com/appengine/docs/java/datastore/transactions.html

  regards

  didier

  On Feb 26, 8:49 pm, lisandrodc lisandr...@gmail.com wrote:

   Hi ! I have an error at update an object:

   public void agregarGrupoConUsuario(Usuario usuario,Long idGrupo) {

                   EntityTransaction et= em.getTransaction();
                   try {
                           et.begin();
                           ControladorGrupoTorneo cGT = new 
   ControladorGrupoTorneo();
                           GrupoTorneo grTorneo = 
   cGT.devolverGrupoTorneo(idGrupo);
                           usuario.agregarGrupoTorneo(grTorneo);
                           em.merge(usuario);
                           et.commit();
                          //the exception at commit;
                           System.out.println(persistioUsuarioConGrupo);
                   } finally {

   The error is:

   Caused by: java.lang.IllegalArgumentException: can't operate on
   multiple entity groups in a single transaction. found both Element {
     type: GrupoTorneo
     id: 3}

    and Element {
     type: Usuario
     id: 11

   }

   Class Usuario:

   @Entity
   public class Usuario {
           @Id
           @GeneratedValue(strategy = GenerationType.IDENTITY)
           private Key id;

           private String nombreUsuario;

           private String nombre;

           private String apellido;

           private String telefono;

           private String password;

           private String mail;

           private String imagen;

           private String ciudad;

           private String pais;
           @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.REMOVE,
                                       CascadeType.REFRESH, 
   CascadeType.MERGE})
           private ListRegFechaUsuario listRegFechaUsuario;
           @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.REMOVE,
                       CascadeType.REFRESH, CascadeType.MERGE})
           private ListGrupoTorneo gruposTorneo;
       /**
   

   Class GrupoTorneo:

   @Entity
   public class GrupoTorneo  {
           @Id
           @GeneratedValue(strategy = GenerationType.IDENTITY)
           private Key id;

           private String nombre;

           private String descripcion;

           private Date fechaCreacion;

           private Long idTorneo;

           private Long idUsuarioCreador;

           private String nombreUsuarioCreador;

           private Long idGrupo;
   ...
   ...

   Solution?

   Regards



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