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 List<RegFechaUsuario> listRegFechaUsuario;
@OneToMany(cascade = {CascadeType.PERSIST, CascadeType.REMOVE,
CascadeType.REFRESH, CascadeType.MERGE})
private List<GrupoTorneo> 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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