/*
* Copyright (c) 2009-2010 Lockheed Martin Corporation
*
* 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.
*/
package org.eurekastreams.server.persistence;
import java.util.List;
import javax.persistence.Query;
import org.eurekastreams.commons.hibernate.QueryOptimizer;
import org.eurekastreams.server.domain.Recommendation;
/**
* This class provides the mapper functionality for Recommendation entities.
*/
public class RecommendationMapper extends DomainEntityMapper<Recommendation>
{
/**
* Constructor.
*
* @param inQueryOptimizer
* the QueryOptimizer to use for specialized functions.
*/
public RecommendationMapper(final QueryOptimizer inQueryOptimizer)
{
super(inQueryOptimizer);
}
/**
* Look up recommendations by the subject.
*
* @param subjectOpenSocialId
* the Open Social Id of the person whose recommendations we're
* getting
* @return list of recommendations
*/
@SuppressWarnings("unchecked")
public List<Recommendation> findBySubjectOpenSocialId(final String subjectOpenSocialId)
{
Query q = getEntityManager().createQuery(
"from Recommendation where subjectOpenSocialId = :openSocialId order by date DESC").setParameter(
"openSocialId", subjectOpenSocialId);
List<Recommendation> results = q.getResultList();
return results;
}
/**
* Look up recommendations by the subject.
*
* @param subjectOpenSocialId
* the Open Social Id of the person whose recommendations we're
* getting
* @param maxResults - max number of items to return.
* @return list of recommendations
*/
@SuppressWarnings("unchecked")
public List<Recommendation> findBySubjectOpenSocialId(final String subjectOpenSocialId, final int maxResults)
{
Query q = getEntityManager().createQuery(
"from Recommendation where subjectOpenSocialId = :openSocialId order by date DESC").setParameter(
"openSocialId", subjectOpenSocialId);
List<Recommendation> results = q.setMaxResults(maxResults).getResultList();
return results;
}
/**
* The name of this domain entity.
*
* @return the name
*/
@Override
protected String getDomainEntityName()
{
return "Recommendation";
}
/**
* Delete a recommendation.
*
* @param id
* the id of the recommendation to delete.
*/
public void delete(final long id)
{
getEntityManager().createQuery("DELETE FROM Recommendation where id=:id").setParameter("id", id)
.executeUpdate();
}
}