org.halyph.sessiondemo.Demo.java Source code

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Here is the source code for org.halyph.sessiondemo.Demo.java

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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.halyph.sessiondemo;

import java.util.Date;
import java.util.List;

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

/**
 * Illustrates the use of Hibernate native APIs. The code here is unchanged from
 * the {@code basic} example, the only difference being the use of annotations
 * to supply the metadata instead of Hibernate mapping files.
 *
 * @author Steve Ebersole
 */
public class Demo {

    public static void main(String[] args) {
        // configures settings from hibernate.cfg.xml
        // Hibernate 3 style
        //      SessionFactory sessionFactory = new Configuration().configure()
        //            .buildSessionFactory();

        // Hibernate 4 style
        Configuration configuration = new Configuration();
        configuration.configure();
        ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties())
                .buildServiceRegistry();
        SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry);

        // ------------------------------

        // create a couple of events...
        Session session = sessionFactory.openSession();
        session.beginTransaction();
        session.save(new Event("Our very first event!", new Date()));
        session.save(new Event("A follow up event", new Date()));
        session.getTransaction().commit();
        session.close();

        // now lets pull events from the database and list them
        session = sessionFactory.openSession();
        session.beginTransaction();
        List result = session.createQuery("from Event").list();
        for (Event event : (List<Event>) result) {
            System.out.println("Event (" + event.getDate() + ") : " + event.getTitle());
        }
        session.getTransaction().commit();
        session.close();

        if (sessionFactory != null) {
            sessionFactory.close();
        }
    }

}