/*
* Tanaguru - Automated webpage assessment
* Copyright (C) 2008-2015 Tanaguru.org
*
* This file is part of Tanaguru.
*
* Tanaguru is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Contact us by mail: tanaguru AT tanaguru DOT org
*/
package org.tanaguru.persistence.i18n;
import java.io.Serializable;
import javax.persistence.NoResultException;
import javax.persistence.Query;
import org.tanaguru.sdk.entity.Entity;
import org.tanaguru.sdk.entity.dao.jpa.AbstractJPADAO;
import org.tanaguru.sdk.entity.i18n.InternationalizedEntity;
import org.tanaguru.sdk.entity.i18n.Language;
import org.tanaguru.sdk.entity.i18n.dao.GenericI18nDAO;
/**
*
* @author jkowalczyk
* @param <E>
* @param <K>
*/
public abstract class AbstractJPAI18nDAO<E extends Entity, K extends Serializable>
extends AbstractJPADAO<InternationalizedEntity<E>, K> implements
GenericI18nDAO<E, K> {
public AbstractJPAI18nDAO() {
super();
}
@Override
public InternationalizedEntity<E> find(Language language, E entity) {
try {
Query query = entityManager.createQuery("SELECT o FROM "
+ getEntityClass().getName()
+ " o WHERE o.target = :target AND o.language = :language");
query.setParameter("target", entity);
query.setParameter("language", language);
return (InternationalizedEntity<E>) query.getSingleResult();
} catch (NoResultException nre) {
return null;
}
}
}