hibernatesessionfactory

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package com.pb.hibernate.util;

importjava.sql.SQLException;
importorg.hibernate.HibernateException;
importorg.hibernate.Session;
importorg.hibernate.SessionFactory;
importorg.hibernate.cfg.Configuration;

public class HibernateSessionFactory{


   private static StringCONFIG_FILE_LOCATION ="/com/hibernate/hibernate.cfg.xml";
   private static finalThreadLocal threadLocal = newThreadLocal();
   private static Configuration configuration = newConfiguration();
    privatestatic SessionFactorysessionFactory;
    privatestatic String configFile =CONFIG_FILE_LOCATION;

    privateHibernateSessionFactory(){
   }


    publicstatic Session getCurrentSession() throws HibernateException{
       Session session = (Session)threadLocal.get();

       try {
           if (session == null || !session.isOpen()||session.connection().isClosed()){
               if (sessionFactory == null){
                   rebuildSessionFactory();
              }
              session = (sessionFactory != null) ?sessionFactory.openSession()
                       : null;
               threadLocal.set(session);
           }
       } catch (SQLException e){
           // TODO Auto-generated catchblock
           e.printStackTrace();
       }
       return session;
   }


    publicstatic void rebuildSessionFactory(){
       try {
           configuration.configure(configFile);
           sessionFactory =configuration.buildSessionFactory();
       } catch (Exception e) {
           System.err
                     .println("%%%% Error Creating SessionFactory%%%%");
           e.printStackTrace();
       }
   }


    publicstatic void closeCurrentSession() throws HibernateException{
       Session session = (Session)threadLocal.get();
       threadLocal.set(null);

       if (session != null) {
           session.close();          }      }

    publicstatic SessionFactory getSessionFactory(){
       return sessionFactory;
   }


    publicstatic void setConfigFile(String configFile){
       HibernateSessionFactory.configFile =configFile;
       sessionFactory = null;
   }


    publicstatic Configuration getConfiguration(){
       return configuration;
   }

}

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