java/nekurak.net-ejb/src/java/cz/frantovo/nekurak/dao/PodnikDAO.java
author František Kučera <franta-hg@frantovo.cz>
Fri, 26 Feb 2010 23:45:43 +0100
changeset 48 86bd44cebe8f
parent 40 67d332d48562
child 49 9b2a597cc862
permissions -rw-r--r--
Odstraněno zapomenuté rozhraní EJB.
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package cz.frantovo.nekurak.dao;
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import cz.frantovo.nekurak.dto.Podnik;
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import java.util.Collection;
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import javax.ejb.LocalBean;
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import javax.ejb.Stateless;
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import javax.persistence.EntityManager;
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import javax.persistence.PersistenceContext;
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import javax.persistence.Query;
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/**
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 *
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 * @author fiki
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 */
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@Stateless
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@LocalBean
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public class PodnikDAO {
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    private static final String PU = "nekurak.net-PU";
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    @PersistenceContext(unitName = PU)
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    private EntityManager em;
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    public Collection<Podnik> getPodniky() {
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	Query dotaz = em.createQuery("FROM " + t(Podnik.class) + " o ORDER BY datum DESC");
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	return dotaz.getResultList();
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    }
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    public void uloz(Podnik p) {
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	em.persist(p);
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    }
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    private static String t(Class trida) {
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	return trida.getSimpleName();
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    }
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}