/*
* Copyright 2010 Spolecne s.r.o. (www.spoledge.com)
*
* 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 com.spoledge.audao.parser.gql.impl.soft.func;
import com.google.appengine.api.datastore.Key;
/**
* KEY_ID( __key__ )
* - returns the Long id of the key or null if not assigned.
*/
public class FuncKEY_ID extends KeyFunc1 {
////////////////////////////////////////////////////////////////////////////
// Protected
////////////////////////////////////////////////////////////////////////////
protected Object getFunctionValue( Key arg ) {
long ret = arg.getId();
return ret > 0 ? ret : null;
}
}
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