Mega Code Archive
Generic Pair
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/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//package org.cspoker.common.util;
public class Pair<L,R> {
private final L left;
private final R right;
public Pair(L left, R right) {
if(left==null){
throw new IllegalArgumentException("Left value is not effective.");
}
if(right==null){
throw new IllegalArgumentException("Right value is not effective.");
}
this.left =left;
this.right = right;
}
public L getLeft() {
return this.left;
}
public R getRight() {
return this.right;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((left == null) ? 0 : left.hashCode());
result = prime * result + ((right == null) ? 0 : right.hashCode());
return result;
}
@SuppressWarnings("unchecked")
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (!(obj instanceof Pair))
return false;
Pair<Object, Object> other = (Pair<Object, Object>) obj;
if (left == null) {
if (other.left != null)
return false;
} else if (!left.equals(other.left))
return false;
if (right == null) {
if (other.right != null)
return false;
} else if (!right.equals(other.right))
return false;
return true;
}
@Override
public String toString() {
return "<"+left.toString()+","+right.toString()+">";
}
}
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