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.sigcopex.dao; import br.com.sigcopex.domain.Monitoria; import br.com.sigcopex.util.HibernateUtil; import java.util.List; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.Transaction; /** * * @author Roberto */ public class MonitoriaDAO { public void salvar(Monitoria monitoria) { Session sessao = HibernateUtil.getSessionFactory().openSession(); Transaction transacao = null; try { transacao = sessao.beginTransaction(); sessao.save(monitoria); transacao.commit(); } catch (RuntimeException ex) { if (transacao != null) { transacao.rollback(); } throw ex; } finally { sessao.close(); } } public List<Monitoria> listar() { Session sessao = HibernateUtil.getSessionFactory().openSession(); List<Monitoria> monitorias = null; try { Query consulta = sessao.getNamedQuery("Monitoria.listar"); monitorias = consulta.list(); } catch (RuntimeException ex) { throw ex; } finally { sessao.close(); } return monitorias; } public Monitoria buscarPorCodigo(Long codigo) { Session sessao = HibernateUtil.getSessionFactory().openSession(); Monitoria curso = null; try { Query consulta = sessao.getNamedQuery("Monitoria.buscarPorCodigo"); consulta.setLong("codigo", codigo); curso = (Monitoria) consulta.uniqueResult(); } catch (RuntimeException ex) { throw ex; } finally { sessao.close(); } return curso; } public void excluir(Monitoria monitoria) { Session sessao = HibernateUtil.getSessionFactory().openSession(); Transaction transacao = null; try { transacao = sessao.beginTransaction(); sessao.delete(monitoria); transacao.commit(); } catch (RuntimeException ex) { if (transacao != null) { transacao.rollback(); } throw ex; } finally { sessao.close(); } } public void editar(Monitoria monitoria) { Session sessao = HibernateUtil.getSessionFactory().openSession(); Transaction transacao = null; try { transacao = sessao.beginTransaction(); sessao.update(monitoria); transacao.commit(); } catch (RuntimeException ex) { if (transacao != null) { transacao.rollback(); } throw ex; } finally { sessao.close(); } } }