package cz.frantovo.nekurak.ejb;

import cz.frantovo.nekurak.dto.Podnik;

import java.util.Collection;

import javax.ejb.Stateless;

import javax.persistence.EntityManager;

import javax.persistence.PersistenceContext;

import javax.persistence.Query;

/**

 *

 * @author fiki

 */

@Stateless

public class PodnikHibernateDAO implements PodnikHibernateDAORemote {

    private static final String PU = "nekurak.net-PU";

    @PersistenceContext(unitName = PU)

    private EntityManager em;

    public Collection<Podnik> getPodniky() {

	Query dotaz = em.createQuery("FROM " + t(Podnik.class) + " o ORDER BY nazev");

        return dotaz.getResultList();

    }

    private static String t(Class trida) {

        return trida.getSimpleName();

    }

}