/*
* 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.mappers;
import javax.persistence.Query;
import org.eurekastreams.server.persistence.mappers.requests.CurrentDateInMinutesRequest;
/**
* Set all the feeds that will be updated to pending so they aren't updated more
* than once.
*
*/
public class SetRefreshableFeedsAsPending extends
BaseArgDomainMapper<CurrentDateInMinutesRequest, Boolean>
{
/**
* Execute. Refer to GetRefreshableFeedsMapper for an explanation of this
* WHERE logic.
*
* @param inRequest
* request holding the current date in minutes.
* @return true.
*/
@Override
public Boolean execute(final CurrentDateInMinutesRequest inRequest)
{
Query q = getEntityManager().createQuery(
"UPDATE Feed SET updated = :currentTimeInMinutes WHERE id in "
+ "(SELECT id FROM Feed WHERE ((updateFrequency "
+ "is not null and updated + updateFrequency "
+ "< :currentTimeInMinutes) or (updateFrequency "
+ "is null and updated + streamPlugin.updateFrequency"
+ "< :currentTimeInMinutes)))")
.setParameter("currentTimeInMinutes",
inRequest.getCurrentDateInMinutes());
q.executeUpdate();
getEntityManager().flush();
return true;
}
}