package com.keer.hibernate;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
public class HibernateUtil {
private static final SessionFactory sessionFactory;
static {
try {
Configuration cfg = new Configuration().configure();
sessionFactory = cfg.buildSessionFactory();
} catch(Throwable e) {
System.err.println("Initial SessionFactory creation failed" + e );
throw new ExceptionInInitializerError(e);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
public static Session getSession() {
return sessionFactory.openSession();
}
public static void closeSession(Session session) throws HibernateException {
if(session != null) {
if(session.isOpen()) {
session.close();
}
}
}
public static void rollback( Transaction tran ) {
try {
if(tran != null) {
tran.rollback();
}
} catch (HibernateException he) {
System.out.println("Rollback faild." + he);
}
}
}