public class HibernateUtils {
 
 private static SessionFactory factory;
 
 private HibernateUtils() {}
 
 static {
  Configuration cfg = new Configuration().configure();
  factory = cfg.buildSessionFactory();
 }
 
 public static SessionFactory getSessionFactory() {
  return factory;
 }
 
 public static Session getSession() {
  return factory.openSession();
 }
 
 public static void closeSession(Session session) {
  if (session != null) {
   if (session.isOpen()) {
    session.close();
   }
  }
 }
 
}