util.HibernateSession.java Source code

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Here is the source code for util.HibernateSession.java

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package util;

import org.hibernate.Session;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistry;

import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;

/**
 * Hibernate Utility class with a convenient method to get Session Factory
 * object.
 *
 * @author PPK
 */
public class HibernateSession {

    private static final SessionFactory sessionFactory = buildSessionFactory();
    private static Session session;

    private static SessionFactory buildSessionFactory() {
        Configuration configuration = new Configuration();
        configuration.configure("hibernate.cfg.xml");

        org.hibernate.service.ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
                .applySettings(configuration.getProperties()).build();
        SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry);

        return sessionFactory;
    }

    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    public static Session getSession() {
        if (null == session) {
            session = sessionFactory.openSession();

        }
        return session;
    }

}