edu.temple.tutrucks.HibernateUtil.java Source code

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Here is the source code for edu.temple.tutrucks.HibernateUtil.java

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package edu.temple.tutrucks;

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

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

    private static final SessionFactory sessionFactory = buildSessionFactory();

    /**
     * Builds Hibernate's Session Factory. Required by Hibernate
     * @return the session factory for Hibernate
     */
    private static SessionFactory buildSessionFactory() {
        try {
            // Create the SessionFactory from hibernate.cfg.xml
            Configuration configuration = new Configuration();
            configuration.configure();
            ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
                    .applySettings(configuration.getProperties()).build();
            return configuration.buildSessionFactory(serviceRegistry);
        } catch (Throwable ex) {
            // Make sure you log the exception, as it might be swallowed
            System.err.println("Initial SessionFactory creation failed.");
            System.err.println(ex.getMessage());
            ex.printStackTrace();
            throw new ExceptionInInitializerError(ex);
        }
    }

    /**
     * Returns the current Hibernate session factory. Required by Hibernate
     * @return the current Hibernate session factory
     */
    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }
}