com.hibernate.dao.ServicioDAO.java Source code

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Here is the source code for com.hibernate.dao.ServicioDAO.java

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/*
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 */
package com.hibernate.dao;

import com.hibernate.entidades.Servicio;
import com.hibernate.init.HibernateUtil;
import java.util.ArrayList;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

/**
 *
 * @author bruno
 */
public class ServicioDAO {
    public void agregaServicio(Servicio servicio) {
        Transaction trns = null;
        Session session = HibernateUtil.getSessionFactory().openSession();
        try {
            trns = session.beginTransaction();
            session.save(servicio);
            session.getTransaction().commit();
        } catch (RuntimeException e) {
            if (trns != null) {
                trns.rollback();
            }
            e.printStackTrace();
        } finally {
            session.flush();
            session.close();
        }
    }

    public void borraServicio(int idServicio) {
        Transaction trns = null;
        Session session = HibernateUtil.getSessionFactory().openSession();
        try {
            trns = session.beginTransaction();
            Servicio reparacion = (Servicio) session.load(Servicio.class, new Integer(idServicio));
            session.delete(reparacion);
            session.getTransaction().commit();
        } catch (RuntimeException e) {
            if (trns != null) {
                trns.rollback();
            }
            e.printStackTrace();
        } finally {
            session.flush();
            session.close();
        }
    }

    public void actualizaServicio(Servicio reparacion) {
        Transaction trns = null;
        Session session = HibernateUtil.getSessionFactory().openSession();
        try {
            trns = session.beginTransaction();
            session.update(reparacion);
            session.getTransaction().commit();
        } catch (RuntimeException e) {
            if (trns != null) {
                trns.rollback();
            }
            e.printStackTrace();
        } finally {
            session.flush();
            session.close();
        }
    }

    public List<Servicio> listaServicios() {
        List<Servicio> reparaciones = new ArrayList<Servicio>();
        Transaction trns = null;
        Session session = HibernateUtil.getSessionFactory().openSession();
        try {
            trns = session.beginTransaction();
            reparaciones = session.createQuery("from Servicio").list();
        } catch (RuntimeException e) {
            e.printStackTrace();
        } finally {
            session.flush();
            session.close();
        }
        return reparaciones;
    }

    public Servicio buscaServicio(int idServicio) {
        Servicio reparacion = null;
        Transaction trns = null;
        Session session = HibernateUtil.getSessionFactory().openSession();
        try {
            trns = session.beginTransaction();
            String queryString = "from Reparacion where id = :id";
            Query query = session.createQuery(queryString);
            query.setInteger("id", idServicio);
            reparacion = (Servicio) query.uniqueResult();
        } catch (RuntimeException e) {
            e.printStackTrace();
        } finally {
            session.flush();
            session.close();
        }
        return reparacion;
    }

}