001/* 002 * Copyright (c) 2007-2016 Concurrent, Inc. All Rights Reserved. 003 * 004 * Project and contact information: http://www.cascading.org/ 005 * 006 * This file is part of the Cascading project. 007 * 008 * Licensed under the Apache License, Version 2.0 (the "License"); 009 * you may not use this file except in compliance with the License. 010 * You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, software 015 * distributed under the License is distributed on an "AS IS" BASIS, 016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 017 * See the License for the specific language governing permissions and 018 * limitations under the License. 019 */ 020 021package cascading.flow.tez; 022 023import java.util.Iterator; 024 025import cascading.flow.FlowProcess; 026import cascading.flow.hadoop.HadoopGroupByClosure; 027import cascading.tuple.Fields; 028import cascading.tuple.Tuple; 029import cascading.tuple.TupleChainIterator; 030 031/** 032 * 033 */ 034public class TezGroupByClosure extends HadoopGroupByClosure 035 { 036 public TezGroupByClosure( FlowProcess flowProcess, Fields[] groupingFields, Fields[] valueFields ) 037 { 038 super( flowProcess, groupingFields, valueFields ); 039 } 040 041 @Override 042 protected Iterator<Tuple> getValueIterator( int pos ) 043 { 044 return new TupleChainIterator( values ); 045 } 046 }