agenda_hibernate.controlador.Operaciones.java Source code

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Here is the source code for agenda_hibernate.controlador.Operaciones.java

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/*
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package agenda_hibernate.controlador;

import agenda_hibernate.modelo.Noticias;
import agenda_hibernate.modelo.Usuarios;
import java.util.Iterator;
import java.util.List;
import javax.swing.DefaultListModel;
import javax.swing.JOptionPane;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

/**
 *
 * @author edison
 */
public class Operaciones {

    public void altaUsuarios(Usuarios user) {
        SessionFactory sesion = NewHibernateUtil.getSessionFactory();
        Session session;
        session = sesion.openSession();
        Transaction tx = session.beginTransaction();
        session.save(user);

        tx.commit();
        session.close();
        JOptionPane.showMessageDialog(null, "Insertado correctamente.");
    }

    public void altaNoticias(Noticias noti) {
        SessionFactory sesion = NewHibernateUtil.getSessionFactory();
        Session session;
        session = sesion.openSession();
        Transaction tx = session.beginTransaction();
        session.save(noti);
        tx.commit();
        session.close();
        JOptionPane.showMessageDialog(null, "Insertado correctamente.");
    }

    public Usuarios buscaUser(String usuario) {
        Usuarios usr;
        SessionFactory sesion = NewHibernateUtil.getSessionFactory();
        Session session;
        session = sesion.openSession();
        Transaction tx = session.beginTransaction();
        usr = (Usuarios) session.get(Usuarios.class, usuario);
        tx.commit();
        session.close();

        return usr;
    }

    public DefaultListModel obtenerNoticiasUser(String user) {
        SessionFactory sesion = NewHibernateUtil.getSessionFactory();
        Session session = sesion.openSession();
        Transaction tx = session.beginTransaction();
        Query q = session.createQuery("from noticias where noticias.usuario=" + user + "");
        List<Noticias> lista = q.list();
        Iterator<Noticias> iter = lista.iterator();
        tx.commit();
        session.close();
        DefaultListModel dlm = new DefaultListModel();
        while (iter.hasNext()) {
            Noticias noti = (Noticias) iter.next();

            dlm.addElement(noti);
        }
        return dlm;
    }

    public DefaultListModel mostrarNoticias() {
        SessionFactory sesion = NewHibernateUtil.getSessionFactory();
        Session session = sesion.openSession();
        Transaction tx = session.beginTransaction();
        Query q = session.createQuery("from Noticias");
        List<Noticias> lista = q.list();
        Iterator<Noticias> iter = lista.iterator();
        tx.commit();
        session.close();
        DefaultListModel dlm = new DefaultListModel();
        while (iter.hasNext()) {
            Noticias noti = (Noticias) iter.next();
            dlm.addElement(noti);
        }
        return dlm;
    }

}