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 my.dao; import org.hibernate.HibernateException; import org.hibernate.Session; import org.hibernate.cfg.AnnotationConfiguration; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; /** * Hibernate Utility class with a convenient method to get Session Factory * object. * * @author Diego */ public class HibernateUtil { public static final SessionFactory sessionFactory; static { try { // Create the SessionFactory from standard (hibernate.cfg.xml) // config file. sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory(); //sessionFactory = new Configuration().configure().buildSessionFactory(); /*} catch (Throwable ex) { // Log the exception. System.err.println("Initial SessionFactory creation failed." + ex); throw new ExceptionInInitializerError(ex); */ } catch (HibernateException hne) { throw new ExceptionInInitializerError(hne); } } public static SessionFactory getSessionFactory() { return sessionFactory; } public static Session getSession(SessionFactory sessionFactory) { Session session = null; try { session = sessionFactory.getCurrentSession(); } catch (HibernateException hex) { hex.printStackTrace(); } if (session == null && session.isOpen()) { session = sessionFactory.openSession(); } return session; } }