GetActivityCommentIdsAuthoredByPersonId.java

/*
 * Copyright (c) 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.mappers.db;

import java.util.List;

import org.eurekastreams.server.persistence.mappers.BaseDomainMapper;

/**
 * Database mapper to get the ids of all activity comments authored by a person.
 */
public class GetActivityCommentIdsAuthoredByPersonId extends BaseDomainMapper
{
    /**
     * Get all activity comment ids authored by a person.
     * 
     * @param inAuthorPersonId
     *            the id of the person whose activity comments we should query
     * @return a list of ids of all activity comment ids authored by the person
     *         with the input person id
     */
    @SuppressWarnings("unchecked")
    public List<Long> execute(final Long inAuthorPersonId)
    {
        return (List<Long>) getEntityManager().createQuery(
                "SELECT id FROM Comment WHERE author.id = :personId")
                .setParameter("personId", inAuthorPersonId).getResultList();
    }
}