/*
    * 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.external.riksdagen.documentcontent.impl.DocumentContentData;
  import com.hack23.cia.model.external.riksdagen.documentcontent.impl.DocumentContentData_;
  import com.hack23.cia.service.data.api.DocumentContentDataDAO;
  
  /**
   * The Class DocumentContentDataDAOImpl.
   */
  @Repository("DocumentContentDataDAO")
  final class DocumentContentDataDAOImpl extends
  AbstractGenericDAOImpl<DocumentContentData, Long>
  implements DocumentContentDataDAO {
  
  	/**
  	 * Instantiates a new document content data dao impl.
  	 */
  	public DocumentContentDataDAOImpl() {
  		super(DocumentContentData.class);
  	}
  
  	@Override
  	public boolean checkDocumentContentData(final String documentId) {
  		final CriteriaQuery<DocumentContentData> criteriaQuery = getCriteriaBuilder()
  				.createQuery(DocumentContentData.class);
  		final Root<DocumentContentData> root = criteriaQuery.from(DocumentContentData.class);
  		criteriaQuery.select(root);
  		final Predicate condition = getCriteriaBuilder().equal(root.get(DocumentContentData_.id), documentId);
  		criteriaQuery.where(condition);
  		final TypedQuery<DocumentContentData> typedQuery = getEntityManager()
  				.createQuery(criteriaQuery);
  		addCacheHints(typedQuery, "checkDocumentContentData");
  
  		final List<DocumentContentData> resultList = typedQuery.getResultList();
  
  		return !resultList.isEmpty();
  	}
  
  
  	@Override
  	public List<String> getIdList() {
  		final CriteriaQuery<String> criteria = getCriteriaBuilder().createQuery(String.class);
  		final Root<DocumentContentData> root = criteria.from(DocumentContentData.class);
  		criteria.select(root.get(DocumentContentData_.id));
  		return getEntityManager().createQuery(criteria).getResultList();
  	}
  
  }