mo_global.set_policy_context('S', 44);

import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;

public class SessionFactoryUtil {

   private static SessionFactory sessionFactory;
   
   // disable the constructor
   private SessionFactoryUtil() {
   }
   
   static {
      // annotation and xml
      sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
      // xml only
      //sessionFactory = new Configuration().configure().buildSessionFactory();
   }
   
   public static SessionFactory getInstance() {
      return sessionFactory;
   }
}

public class HibernateSessionFactoryImpl implements HibernateSessionFactory {

static Log log = LogFactory.getLo(HibernateSessionFactoryImpl.class);

static final SessionFactory sessionFactory ;

static {
try {
// Create the SessionFactory
sessionFactory = new Configuration().configure().buildSessionFactory();
} catch (Throwable ex) {
log.error("Initial SessionFactory creation failed.", ex);
throw new ExceptionInInitializerError(ex);
}
}

public static final ThreadLocal threadLocal = new ThreadLocal();

public Session getSession() {
Session s = (Session) threadLocal.get();
// Open a new Session, if this Thread has none yet
if (s == null) {

//Create the Hibernate session
s = sessionFactory.openSession();
//Set the Hibernate session in this Thread ;
threadLocal.set(s);
}
return s;
}