/*
* 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.action.execution;
import java.io.Serializable;
import java.util.Set;
import org.eurekastreams.commons.actions.ExecutionStrategy;
import org.eurekastreams.commons.actions.context.PrincipalActionContext;
import org.eurekastreams.server.domain.TutorialVideoDTO;
import org.eurekastreams.server.persistence.mappers.DomainMapper;
/**
* Execution for getting the tutorialVideos.
*
*/
public class GetTutorialVideoExecution implements ExecutionStrategy<PrincipalActionContext>
{
/**
* Mapper to look up a tutorial video.
*/
private final DomainMapper<Long, Set<TutorialVideoDTO>> tutorialVideoMapper;
/**
* @param inTutorialVideoMapper
* the tutorialVideoMapper.
*/
public GetTutorialVideoExecution(final DomainMapper<Long, Set<TutorialVideoDTO>> inTutorialVideoMapper)
{
tutorialVideoMapper = inTutorialVideoMapper;
}
/**
* @param inActionContext
* the context for the action.
* @return the tutorial video.
*/
@Override
public Serializable execute(final PrincipalActionContext inActionContext)
{
return (Serializable) tutorialVideoMapper.execute(null);
}
}