/*
* 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.io.Serializable;
import java.util.List;
import org.eurekastreams.server.persistence.mappers.BaseArgDomainMapper;
/**
* Get list of Serializable values for given entity/field name.
*
*/
public class GetSerializableField extends BaseArgDomainMapper<String, List<Serializable>>
{
/**
* Entity name.
*/
private String entityName;
/**
* Field name.
*/
private String fieldName;
/**
* Constructor.
*
* @param inEntityName
* Entity name to find ids for.
* @param inFieldName
* name of field to select.
*
*/
public GetSerializableField(final String inEntityName, final String inFieldName)
{
entityName = inEntityName;
fieldName = inFieldName;
}
/**
* Return ids for all entities of given entity name.
*
* @param inEntityName
* Entity name to find ids for.
* @return List of ids for all entities of given entity name.
*/
@SuppressWarnings("unchecked")
@Override
public List<Serializable> execute(final String inEntityName)
{
return getEntityManager().createQuery("SELECT " + fieldName + " FROM " + entityName).getResultList();
}
}