ClasseDao.ItemvendaDao.java Source code

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Here is the source code for ClasseDao.ItemvendaDao.java

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package ClasseDao;

import Hibernate.HibernateUtil;
import Modelo.ItemVenda;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JOptionPane;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

/**
 *
 * @author MACUACUA
 */
public class ItemvendaDao {

    private Session sessao;
    private List<ItemVenda> lista = null;
    private ItemVenda guest = null;
    private boolean added = false;

    public ItemvendaDao() {
    }

    public void gravarItemVenda(ItemVenda item) {
        sessao = HibernateUtil.getSessionFactory().getCurrentSession();
        sessao.beginTransaction();
        sessao.save(item);
        sessao.getTransaction().commit();
        guest = item;

    }

    public void removerItemVenda(int codigo) {

        sessao = HibernateUtil.getSessionFactory().getCurrentSession();
        sessao.beginTransaction();
        ItemVenda item = (ItemVenda) sessao.get(ItemVenda.class, codigo);

        sessao.delete(item);
        sessao.getTransaction().commit();
        lista.remove(item);
        guest = item;
        added = false;

    }

    public java.util.List listarItens() {
        try {
            SessionFactory tp = new Configuration().configure().buildSessionFactory();
            Session sessao = tp.openSession();
            java.util.List lista = new ArrayList();
            lista = sessao.createQuery("from  ItemVenda").list();
            sessao.close();
            return lista;
        } catch (Exception e) {
            JOptionPane.showMessageDialog(null, "Erro ao preencher tabela" + e);
        }
        return null;
    }

}