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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