/*******************************************************************************
* Copyright (c) 2005, 2015 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.core.internal.databinding;
/**
* Class Pair. Represents a mathematical pair of objects (a, b).
* @since 1.0
*/
public class Pair {
/**
* a in the pair (a, b)
*/
public final Object a;
/**
* b in the pair (a, b)
*/
public final Object b;
/**
* Construct a Pair(a, b)
*
* @param a a in the pair (a, b)
* @param b b in the pair (a, b)
*/
public Pair(Object a, Object b) {
this.a = a;
this.b = b;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((a == null) ? 0 : a.hashCode());
result = prime * result + ((b == null) ? 0 : b.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Pair other = (Pair) obj;
if (a == null) {
if (other.a != null)
return false;
} else if (!a.equals(other.a))
return false;
if (b == null) {
if (other.b != null)
return false;
} else if (!b.equals(other.b))
return false;
return true;
}
}