Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package dao; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import modelo.Orientacion; import org.springframework.stereotype.Repository; import org.springframework.transaction.annotation.Propagation; import org.springframework.transaction.annotation.Transactional; /** * * @author Daniel */ @Repository @Transactional(propagation = Propagation.SUPPORTS, readOnly = true) public class DAOOrientacion { @PersistenceContext EntityManager em; /** * */ public DAOOrientacion() { } /** * * @param _o */ @Transactional(propagation = Propagation.REQUIRED, readOnly = false, rollbackFor = exceptionsDAO.GuardarOrientacionException.class) public void guardarOrientacion(Orientacion _o) { em.persist(_o); } /** * * @param _orientacion * @return */ public Orientacion obtenerOrientacion(Orientacion.orientacion _orientacion) { return em.find(Orientacion.class, _orientacion); } }