com.hibernate.dao.ProvedorDAO.java Source code

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

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/*
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 */
package com.hibernate.dao;

import com.hibernate.entidades.Provedor;
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 ProvedorDAO {

    public void agregaProvedor(Provedor provedor) {
        Transaction trns = null;
        Session session = HibernateUtil.getSessionFactory().openSession();
        try {
            trns = session.beginTransaction();
            session.save(provedor);
            session.getTransaction().commit();
        } catch (RuntimeException e) {
            if (trns != null) {
                trns.rollback();
            }
            e.printStackTrace();
        } finally {
            session.flush();
            session.close();
        }
    }

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

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

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

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

}