jshm.hibernate.HibernateUtil.java Source code

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/*
 * -----LICENSE START-----
 * JSHManager - A Java-based tool for managing one's ScoreHero account.
 * Copyright (C) 2008 Tim Mullin
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 * -----LICENSE END-----
 */
package jshm.hibernate;

import org.hibernate.*;
import org.hibernate.cfg.*;

public class HibernateUtil {
    private static SessionFactory sessionFactory;

    public static SessionFactory getSessionFactory() {
        if (null == sessionFactory) {
            try {
                // Create the SessionFactory from hibernate.cfg.xml
                //            sessionFactory = new Configuration().configure().buildSessionFactory();
                sessionFactory = new AnnotationConfiguration()
                        .configure(HibernateUtil.class.getResource("/jshm/hibernate/hibernate.cfg.xml"))
                        .buildSessionFactory();

            } catch (Throwable ex) {
                // Make sure you log the exception, as it might be swallowed
                System.err.println("Initial SessionFactory creation failed." + ex);
                throw new ExceptionInInitializerError(ex);
            }
        }

        return sessionFactory;
    }

    /*
     * Having problems with NetBeans not being able to instantiate some GUI components
     * due to trying to get Hibernate session factory.
     */
    public static SessionFactory getSessionFactorySilent() {
        try {
            return getSessionFactory();
        } catch (ExceptionInInitializerError e) {
            return null;
        }
    }

    public static Session getCurrentSession() {
        return getSessionFactory().getCurrentSession();
    }

    public static Session getCurrentSessionSilent() {
        SessionFactory sf = getSessionFactorySilent();

        if (null == sf)
            return null;

        return sf.getCurrentSession();
    }

    public static Session openSession() {
        return getSessionFactory().openSession();
    }

    public static void shutdown() throws Exception {
        Session sess = null;
        Transaction tx = null;

        sess = getCurrentSession();
        tx = sess.beginTransaction();
        sess.createSQLQuery("SHUTDOWN COMPACT");
        tx.commit();
    }
}