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.util;
022
023/**
024 *
025 */
026public class Pair<Lhs, Rhs>
027  {
028  Lhs lhs;
029  Rhs rhs;
030
031  public Pair( Lhs lhs, Rhs rhs )
032    {
033    this.lhs = lhs;
034    this.rhs = rhs;
035    }
036
037  public Lhs getLhs()
038    {
039    return lhs;
040    }
041
042  public void setLhs( Lhs lhs )
043    {
044    this.lhs = lhs;
045    }
046
047  public Rhs getRhs()
048    {
049    return rhs;
050    }
051
052  public void setRhs( Rhs rhs )
053    {
054    this.rhs = rhs;
055    }
056
057  @Override
058  public boolean equals( Object object )
059    {
060    if( this == object )
061      return true;
062    if( object == null || getClass() != object.getClass() )
063      return false;
064
065    Pair pair = (Pair) object;
066
067    if( lhs != null ? !lhs.equals( pair.lhs ) : pair.lhs != null )
068      return false;
069    if( rhs != null ? !rhs.equals( pair.rhs ) : pair.rhs != null )
070      return false;
071
072    return true;
073    }
074
075  @Override
076  public int hashCode()
077    {
078    int result = lhs != null ? lhs.hashCode() : 0;
079    result = 31 * result + ( rhs != null ? rhs.hashCode() : 0 );
080    return result;
081    }
082  }