com.fpmislata.seguros.datos.hibernate.HibernateUtil.java Source code

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Here is the source code for com.fpmislata.seguros.datos.hibernate.HibernateUtil.java

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/*
 * Copyright 2012 Lorenzo Gonzlez.
 *
 * 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.fpmislata.seguros.datos.hibernate;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.context.internal.ThreadLocalSessionContext;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;

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");
            ServiceRegistry serviceRegistry = new ServiceRegistryBuilder()
                    .applySettings(configuration.getProperties()).buildServiceRegistry();
            sessionFactory = configuration.buildSessionFactory(serviceRegistry);

        }
    }

    public static void openSessionAndAttachToThread() {
        Session session = sessionFactory.openSession();
        ThreadLocalSessionContext.bind(session);
    }

    public static SessionFactory getSessionFactory() {
        if (sessionFactory == null) {
            buildSessionFactory();
        }
        if (sessionFactory.isClosed() == true) {
            throw new RuntimeException("El objeto sessionFactory est cerrado");
        }
        return sessionFactory;
    }

    public static void closeSessionAndDeattachFromThread() {
        Session session = ThreadLocalSessionContext.unbind(sessionFactory);
        if (session != null) {
            if (session.isOpen() == true) {
                session.close();
            }
        }
    }

    public static void closeSessionFactory() {
        if ((sessionFactory != null) && (sessionFactory.isClosed() == false)) {
            sessionFactory.close();
        }
    }

}