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.unisal.dao; import br.unisal.hibernateutil.HibernateUtil; import br.unisal.model.Consulta; import java.util.ArrayList; import java.util.List; import org.hibernate.HibernateException; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.Transaction; /** * * @author jether */ public class ConsultaDao { public void insert(Consulta c) { Session session = HibernateUtil.getSessionFactory().openSession(); Transaction tx = session.beginTransaction(); try { tx.begin(); session.save(c); tx.commit(); } catch (HibernateException e) { System.out.println("Exception ConsultaDao.insert(): " + e.getMessage()); tx.rollback(); } finally { session.close(); } } public void update(Consulta c) { Session session = HibernateUtil.getSessionFactory().openSession(); Transaction tx = session.beginTransaction(); try { tx.begin(); session.update(c); tx.commit(); } catch (HibernateException e) { System.out.println("Exception ConsultaDao.update(): " + e.getMessage()); tx.rollback(); } finally { session.close(); } } public List<Consulta> getAll() { Session session = HibernateUtil.getSessionFactory().openSession(); Transaction tx = session.beginTransaction(); List<Consulta> consultas = new ArrayList<>(); try { tx.begin(); Query query = session.createQuery("FROM Consulta"); consultas = query.list(); tx.commit(); } catch (HibernateException e) { System.out.println("Exception ConsultaDao.getAll(): " + e.getMessage()); tx.rollback(); } finally { session.close(); } return consultas; } public Consulta getById(Consulta c) { Session session = HibernateUtil.getSessionFactory().openSession(); Transaction tx = session.beginTransaction(); Consulta consulta = new Consulta(); try { tx.begin(); Query query = session.createQuery("FROM Consulta WHERE idConsulta = :id"); query.setParameter("id", c.getIdConsulta()); consulta = (Consulta) query.uniqueResult(); tx.commit(); } catch (HibernateException e) { System.out.println("Exception ConsultaDao.getById(): " + e.getMessage()); tx.rollback(); } finally { session.close(); } return consulta; } public void remove(Consulta c) { Session session = HibernateUtil.getSessionFactory().openSession(); Transaction tx = session.beginTransaction(); try { tx.begin(); session.delete(c); tx.commit(); } catch (HibernateException e) { System.out.println("Exception ConsultaDao.remove(): " + e.getMessage()); tx.rollback(); } finally { session.close(); } } }