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 App.Dao; import App.Services.Hibernate.HibernateUtil; import java.util.List; import org.hibernate.HibernateException; import org.hibernate.Query; import org.hibernate.Session; /** * * @author Ilias Naamane */ abstract public class DaoAbstract { static final Session session = HibernateUtil.getSessionFactory().openSession(); private final Class<?> Class; protected DaoAbstract(Class<?> Class) { this.Class = Class; } protected List getAll() { List resultList = null; try { session.beginTransaction(); resultList = session.createCriteria(Class).list(); session.getTransaction().commit(); } catch (HibernateException he) { he.printStackTrace(); } return resultList; } public void create(Object o) { try { session.beginTransaction(); session.save(o); session.getTransaction().commit(); } catch (HibernateException he) { he.printStackTrace(); } } public List getSqlQuery(String SqlQuery) { List resultList = null; try { session.beginTransaction(); resultList = session.createSQLQuery(SqlQuery).list(); session.getTransaction().commit(); } catch (HibernateException he) { he.printStackTrace(); } return resultList; } public int UpdateQuery(String query) { int r = 0; try { session.beginTransaction(); Query q = session.createSQLQuery(query); r = q.executeUpdate(); session.getTransaction().commit(); } catch (HibernateException he) { he.printStackTrace(); } return r; } public List getHqlQuery(String query) { List resultList = null; try { session.beginTransaction(); resultList = session.createQuery(query).list(); session.getTransaction().commit(); } catch (HibernateException he) { he.printStackTrace(); } return resultList; } protected List getHqlPreparedQuery(String query, String... argc) { List resultList = null; try { session.beginTransaction(); Query q = session.createQuery(query); for (int i = 0; i < argc.length - 1; i += 2) { q.setParameter(argc[i], argc[i + 1]); } resultList = q.list(); session.getTransaction().commit(); } catch (HibernateException he) { System.err.println(he.getMessage()); } return resultList; } }