cr.ac.una.prograv.lab.utils.HibernateUtil.java Source code

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Here is the source code for cr.ac.una.prograv.lab.utils.HibernateUtil.java

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package cr.ac.una.prograv.lab.utils;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

/**
 * Hibernate Utility class with a convenient method to get Session Factory
 * object.
 *
 * @author der12
 */
public class HibernateUtil {

    private static final SessionFactory sessionFactory;
    private Session sesion;
    private Transaction transac;

    static {
        try {
            // Create the SessionFactory from standard (hibernate.cfg.xml) 
            // config file.
            sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
        } catch (Throwable ex) {
            // Log the exception. 
            System.err.println("Initial SessionFactory creation failed." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }

    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    public void setSesion(Session sesion) {
        this.sesion = sesion;
    }

    public void setTransac(Transaction transac) {
        this.transac = transac;
    }

    public Session getSesion() {
        return sesion;
    }

    public Transaction getTransac() {
        return transac;
    }

    public void iniciarOperacion() throws HibernateException {
        sesion = HibernateUtil.getSessionFactory().openSession();
        transac = sesion.beginTransaction();
    }

    public void manejarException(HibernateException he) throws HibernateException {
        transac.rollback();
        throw new HibernateException("Error Hibernate Utils", he);
    }
}