com.naval.persistencia.hibernate.HibernateUtil.java Source code

Introduction

Here is the source code for com.naval.persistencia.hibernate.HibernateUtil.java

Source

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.naval.persistencia.hibernate;

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;

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

    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");

            StandardServiceRegistryBuilder serviceRegistryBuilder = new StandardServiceRegistryBuilder();
            // If you miss the below line then it will complaing about a missing dialect setting
            serviceRegistryBuilder.applySettings(configuration.getProperties());
            ServiceRegistry serviceRegistry = serviceRegistryBuilder.build();

            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();
        }
    }
}