Ops, I posted with one mistake... correcting:
@Entity(name = "Usuario")
@Table(name = "usuario")
public class Usuario {
@Id
@Column(name = "id_usuario")
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_empresa")
private Empresa empresa;
}
On 18 nov, 08:13, vaninh0 <[email protected]> wrote:
> I have these Entities:
>
> @Entity(name = "Empresa")
> @Table(name = "empresa")
> public class Empresa {
> @Id
> @Column(name = "id_empresa")
> @GeneratedValue(strategy = GenerationType.IDENTITY)
> private Long id;
>
> }
>
> and
>
> @Entity(name = "Usuario")
> @Table(name = "usuario")
> public class Usuario {
> @Id
> @Column(name = "id_usuario")
> @GeneratedValue(strategy = GenerationType.IDENTITY)
> private Long id;
> @ManyToOne(fetch = FetchType.LAZY)
> @JoinColumn(name = "id_empresa")
>
> }
>
> I have inserted many of Empresas and now I wanna insert a new Usuario
> with a inserted Empresa, but I got this exception:
>
> javax.persistence.PersistenceException: Error in meta-data for
> br.com.controlecartao.core.entity.Empresa.id: Cannot have a
> java.lang.Long primary key and be a child object (owning field is
> br.com.controlecartao.core.entity.Usuario.empresa).
>
> I´m using the method MERGE, but I don´t know if this method is correct
> to to this.
>
> What´s the correct way to do this?
> Where am I wrong?
>
> Thank you.
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