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
021package cascading.pipe.joiner;
022
023import cascading.flow.planner.DeclaresResults;
024import cascading.tuple.Fields;
025
026/**
027 *
028 */
029public abstract class BaseJoiner implements Joiner, DeclaresResults
030  {
031  Fields fieldDeclaration;
032
033  public BaseJoiner()
034    {
035    }
036
037  public BaseJoiner( Fields fieldDeclaration )
038    {
039    this.fieldDeclaration = fieldDeclaration;
040    }
041
042  public Fields getFieldDeclaration()
043    {
044    return fieldDeclaration;
045    }
046  }