LanguageContentDataDAOImpl.java
- /*
- * Copyright 2010 James Pether Sörling
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * $Id$
- * $HeadURL$
- */
- package com.hack23.cia.service.data.impl;
- import java.util.List;
- import javax.persistence.TypedQuery;
- import javax.persistence.criteria.CriteriaQuery;
- import javax.persistence.criteria.Predicate;
- import javax.persistence.criteria.Root;
- import org.springframework.stereotype.Repository;
- import com.hack23.cia.model.internal.application.system.impl.LanguageContentData;
- import com.hack23.cia.model.internal.application.system.impl.LanguageContentData_;
- import com.hack23.cia.service.data.api.LanguageContentDataDAO;
- /**
- * The Class LanguageContentDataDAOImpl.
- */
- @Repository("LanguageContentDataDAO")
- final class LanguageContentDataDAOImpl extends
- AbstractGenericDAOImpl<LanguageContentData, Long> implements
- LanguageContentDataDAO {
- /**
- * Instantiates a new language content data dao impl.
- */
- public LanguageContentDataDAOImpl() {
- super(LanguageContentData.class);
- }
- @Override
- public LanguageContentData findTranslation(final String key,
- final String fromLanguage, final String toLanguage) {
- final CriteriaQuery<LanguageContentData> criteriaQuery = getCriteriaBuilder()
- .createQuery(getPersistentClass());
- final Root<LanguageContentData> root = criteriaQuery
- .from(getPersistentClass());
- criteriaQuery.select(root);
- final Predicate keyCondition = getCriteriaBuilder().equal(root.get(LanguageContentData_.refKey),
- key);
- final Predicate fromCondition = getCriteriaBuilder().equal(
- root.get(LanguageContentData_.fromLanguage),
- fromLanguage);
- final Predicate toCondition = getCriteriaBuilder().equal(root.get(LanguageContentData_.toLanguage),
- toLanguage);
- final Predicate and = getCriteriaBuilder().and(keyCondition, fromCondition, toCondition);
- criteriaQuery.where(and);
- final TypedQuery<LanguageContentData> typedQuery = getEntityManager()
- .createQuery(criteriaQuery);
- addCacheHints(typedQuery, "findTranslation");
- final List<LanguageContentData> resultList = typedQuery.getResultList();
- if (resultList.isEmpty()) {
- return null;
- } else {
- return resultList.get(0);
- }
- }
- /**
- * Gets the id list.
- *
- * @return the id list
- */
- private List<Long> getIdList() {
- final CriteriaQuery<Long> criteria = getCriteriaBuilder().createQuery(
- Long.class);
- final Root<LanguageContentData> root = criteria
- .from(LanguageContentData.class);
- criteria.select(root.get(LanguageContentData_.hjid));
- return getEntityManager().createQuery(criteria).getResultList();
- }
- }