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 br.com.sescacre.controleAcesso.dao; import br.com.sescacre.controleAcesso.entidades.Registros; import br.com.sescacre.controleAcesso.util.HibernateUtil; import java.sql.SQLIntegrityConstraintViolationException; import java.util.List; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.Transaction; /** * * @author Rennan Francisco */ public class RegistroDao { public void salvar(Registros r) throws Exception { Session s = HibernateUtil.getSession(); Transaction t = null; try { t = s.beginTransaction(); s.save(r); t.commit(); } catch (Exception ex) { t.rollback(); throw new SQLIntegrityConstraintViolationException(); } finally { s.close(); } } public void alterar(Registros r) throws Exception { Session s = HibernateUtil.getSession(); Transaction t = null; try { t = s.beginTransaction(); s.update(r); t.commit(); } catch (Exception e) { t.rollback(); throw new SQLIntegrityConstraintViolationException(); } finally { s.close(); } } public void excluir(Registros r) { Session s = HibernateUtil.getSession(); Transaction t = s.beginTransaction(); s.delete(r); t.commit(); s.close(); } public List<Registros> ListaTodos() { Session s = HibernateUtil.getSession(); Query q = s.createQuery("from Registros"); List<Registros> lista = q.list(); s.close(); return lista; } public Registros pesquisaPorId(Integer id) { Session s = HibernateUtil.getSession(); Registros r = (Registros) s.load(Registros.class, id); s.close(); return r; } }