ufsm.ctism.utils.HibernateUtils.java Source code

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Here is the source code for ufsm.ctism.utils.HibernateUtils.java

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package ufsm.ctism.utils;

import java.util.Properties;
import org.hibernate.boot.registry.StandardServiceRegistry;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;

/**
 * Classe singleton para utilizao do Hibernate
 * @author SSI-Bruno
 */
public class HibernateUtils {

    private final org.hibernate.SessionFactory sessionFactory;
    private static HibernateUtils instance;

    private HibernateUtils() {
        Configuration configuration = new Configuration();
        configuration.configure();
        Properties properties = configuration.getProperties();
        StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder();
        StandardServiceRegistry serviceRegistry = builder.applySettings(properties).build();
        sessionFactory = configuration.buildSessionFactory(serviceRegistry);
    }

    /**
     * Abre uma sesso stateless no banco de dados
     * @return sesso aberta com o banco
     */
    public org.hibernate.StatelessSession getStatelessSession() {
        return sessionFactory.openStatelessSession();
    }

    /**
     * Abre uma sesso statefull no banco de dados
     * @return sesso aberta com o banco
     */
    public org.hibernate.Session getStatefullSession() {
        return sessionFactory.openSession();
    }

    /**
     * Mtodo para obteno de um objeto da classe
     * @return instncia de um objeto desta classe.
     */
    public static HibernateUtils getInstance() {
        if (instance == null) {
            instance = new HibernateUtils();
        }
        return instance;
    }

}