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.stream.duct; 022 023import java.util.Iterator; 024 025/** 026 * 027 */ 028public class OpenDuct<Incoming, Outgoing> extends Duct<Grouping<Incoming, Iterator<Incoming>>, Outgoing> implements OpenWindow 029 { 030 public OpenDuct( Duct<Outgoing, ?> next ) 031 { 032 super( next ); 033 } 034 035 @Override 036 public void start( Duct previous ) 037 { 038 next.start( previous ); 039 } 040 041 @Override 042 public void receive( Duct previous, Grouping<Incoming, Iterator<Incoming>> grouping ) 043 { 044 while( grouping.joinIterator.hasNext() ) 045 next.receive( previous, (Outgoing) grouping.joinIterator.next() ); 046 } 047 048 @Override 049 public void complete( Duct previous ) 050 { 051 next.complete( previous ); 052 } 053 }