001    /*
002     * Copyright (c) 2007-2015 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    
021    package cascading.flow.stream;
022    
023    import cascading.flow.FlowProcess;
024    import cascading.pipe.Each;
025    import cascading.pipe.Operator;
026    import cascading.tuple.Fields;
027    import cascading.tuple.TupleEntry;
028    
029    /**
030     *
031     */
032    public abstract class EachStage extends OperatorStage<TupleEntry> implements Mapping
033      {
034      final Each each;
035    
036      public EachStage( FlowProcess flowProcess, Each each )
037        {
038        super( flowProcess, each );
039        this.each = each;
040        }
041    
042      @Override
043      public Operator getOperator()
044        {
045        return each;
046        }
047    
048      @Override
049      protected Fields getOutgoingSelector()
050        {
051        return outgoingScopes.get( 0 ).getOutValuesSelector();
052        }
053      }