com.github.leonardoxh.temporeal.model.hibernate.HibernateUtils.java Source code

Introduction

Here is the source code for com.github.leonardoxh.temporeal.model.hibernate.HibernateUtils.java

Source

/*
 * Copyright 2014 Leonardo Rossetto
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.github.leonardoxh.temporeal.model.hibernate;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;

public final class HibernateUtils {

    private volatile static SessionFactory sessionFactory;

    private static void initialize() {
        if (sessionFactory == null) {
            synchronized (HibernateUtils.class) {
                if (sessionFactory == null) {
                    sessionFactory = buildSessionFactory();
                }
            }
        }
    }

    private static SessionFactory buildSessionFactory() {
        Configuration configuration = new Configuration();
        configuration.configure();
        ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().build();
        return configuration.buildSessionFactory(serviceRegistry);
    }

    public static SessionFactory getSessionFactory() {
        initialize();
        return sessionFactory;
    }

    public static Session getCurrentSession() {
        initialize();
        return sessionFactory.getCurrentSession();
    }

}