Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package bo.com.kibo.dal.impl; import bo.com.kibo.dal.intf.ICargaDAO; import bo.com.kibo.entidades.Carga; import org.hibernate.Query; /** * * @author Olvinho */ public class CargaHibernateDAO extends DAOGenericoHibernate<Carga, Integer> implements ICargaDAO { @Override public Integer getIdPorCodigo(String codigo) { Query query = getSession().createQuery("SELECT id from Carga c WHERE c.codigo = :codigo"); query.setParameter("codigo", codigo); return (Integer) query.uniqueResult(); } @Override public boolean checkId(Integer id) { Query query = getSession().createQuery("SELECT 1 from Carga c WHERE c.id = :id"); query.setParameter("id", id); return (query.uniqueResult() != null); } @Override public String getCodigo(Integer id) { Query query = getSession().createQuery("SELECT codigo from Carga c WHERE c.id = :id"); query.setParameter("id", id); return (String) query.uniqueResult(); } }