principal.HibernateUtil.java Source code

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Here is the source code for principal.HibernateUtil.java

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/*
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 */
package principal;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.context.internal.ThreadLocalSessionContext;
import org.hibernate.service.ServiceRegistry;

/**
 *
 * @author Nico
 */
public class HibernateUtil {

    private static SessionFactory sessionFactory = buildSessionFactory();

    private static SessionFactory buildSessionFactory() {
        try {
            if (sessionFactory == null) {
                Configuration configuration = new Configuration()
                        .configure(HibernateUtil.class.getResource("/hibernate.cfg.xml"));
                StandardServiceRegistryBuilder serviceRegistryBuilder = new StandardServiceRegistryBuilder();
                serviceRegistryBuilder.applySettings(configuration.getProperties());
                ServiceRegistry serviceRegistry = serviceRegistryBuilder.build();
                sessionFactory = configuration.buildSessionFactory(serviceRegistry);
            }
            return sessionFactory;
        } catch (Throwable ex) {
            System.err.println("Initial SessionFactory creation failed: " + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }

    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    public static void shutdown() {
        getSessionFactory().close();
    }

    /*private static SessionFactory sessionFactory;
     public static synchronized void buildSessionFactory() {
     if (sessionFactory == null) {
       Configuration configuration = new Configuration();
      configuration.configure();
       configuration.setProperty("hibernate.current_session_context_class", "thread");
     ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties()).buildServiceRegistry();
      sessionFactory = configuration.buildSessionFactory(serviceRegistry);
          }
        }
         public static void openSessionAndBindToThread() {
           Session session = sessionFactory.openSession(); 
           ThreadLocalSessionContext.bind(session);
         }
        
         public static SessionFactory getSessionFactory() {
     if (sessionFactory==null)  {
        buildSessionFactory();
    }
     return sessionFactory;
         }
        
         public static void closeSessionAndUnbindFromThread() {
     Session session = ThreadLocalSessionContext.unbind(sessionFactory);
     if (session!=null) {
        session.close();
    }
        }
        
         public static void closeSessionFactory() {
     if ((sessionFactory!=null) && (sessionFactory.isClosed()==false)) {
       sessionFactory.close();
    }
        }
        
        private static class ServiceRegistryBuilder {
        
    public ServiceRegistryBuilder() {
    }
        }
    }
            
            
            
        */

    /* private static final SessionFactory sessionFactory = buildSessionFactory();
        
    private static SessionFactory buildSessionFactory() {
      try {
        
     SessionFactory sessionFactory = new Configuration()
           .configure("/com/mkyong/persistence/hibernate.cfg.xml")
           .addResource("com/mkyong/common/Cliente.hbm.xml")
           .buildSessionFactory();
        
     return sessionFactory;
        
      } catch (Throwable ex) {
     // Make sure you log the exception, as it might be swallowed
     System.err.println("Initial SessionFactory creation failed." + ex);
     throw new ExceptionInInitializerError(ex);
      }
    }
        
    public static SessionFactory getSessionFactory() {
      return sessionFactory;
    }
        
    public static void shutdown() {
      // Close caches and connection pools
      getSessionFactory().close();
    }
        
    */

    /*private static final SessionFactory sessionFactory;   
        
    static 
    { 
    try 
    { 
        sessionFactory = new Configuration().configure().buildSessionFactory(); 
    } catch (HibernateException he) 
    { 
       System.err.println("Ocurri un error en la inicializacin de la SessionFactory: " + he); 
       throw new ExceptionInInitializerError(he); 
    } 
    }  
        
    public static SessionFactory getSessionFactory() 
    { 
    return sessionFactory; 
    } */
}