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 cl.model.dao; import cl.model.pojos.Boletin; import org.hibernate.SessionFactory; import org.hibernate.Session; import org.hibernate.Transaction; import org.hibernate.Query; import java.util.List; /** * * @author camilo */ public class BoletinDAO { public void ingresar(Boletin boletin) { SessionFactory sf = null; Session session = null; Transaction tx = null; try { sf = HibernateUtil.getSessionFactory(); session = sf.openSession(); tx = session.beginTransaction(); session.save(boletin); tx.commit(); session.close(); } catch (Exception ex) { tx.rollback(); throw new RuntimeException("No se pudo registrar el boletin"); } } public void modificar(Boletin boletin) { SessionFactory sf = null; Session session = null; Transaction tx = null; try { sf = HibernateUtil.getSessionFactory(); session = sf.openSession(); tx = session.beginTransaction(); session.save(boletin); tx.commit(); session.close(); } catch (Exception ex) { tx.rollback(); throw new RuntimeException("No se pudo modificar el boletin"); } } public Boletin consultar(int codigo) { SessionFactory sf = HibernateUtil.getSessionFactory(); Session session = sf.openSession(); Boletin boletin = (Boletin) session.get(Boletin.class, codigo); if (boletin != null) { return boletin; } else { return new Boletin(); } } public List<Boletin> findAll() { SessionFactory sf = HibernateUtil.getSessionFactory(); Session session = sf.openSession(); Query query = session.createQuery("from Boletin"); List<Boletin> lista = query.list(); session.close(); return lista; } public void eliminar(int codigo) { SessionFactory sf = null; Session session = null; Transaction tx = null; try { sf = HibernateUtil.getSessionFactory(); session = sf.openSession(); tx = session.beginTransaction(); session.delete(codigo); tx.commit(); session.close(); } catch (Exception ex) { tx.rollback(); throw new RuntimeException("No se pudo eliminar el boletin"); } } }