HibernateUtil

public class HibernateUtils {
	private static Configuration configuration;
	private static SessionFactory factory;

	static {
		try {
			configuration = new Configuration();
			factory = configuration.configure().buildSessionFactory();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static SessionFactory getSessionFactory() {
		return factory;
	}

	public static Configuration getConfiguration() {
		return configuration;
	}

	public static Session getSession() {
		return factory.openSession();
	}

	public static Transaction beginTransaction(Session session) {
		return session.beginTransaction();
	}

	public static void commitTransaction(Session session) {
		session.getTransaction().commit();
	}

	public static void rollbackTransaction(Session session) {
		session.getTransaction().rollback();
	}

	public static void closeSession(Session session) {
		if (session != null) {
			if (session.isOpen()) {
				session.close();
			}
		}
	}
}