org.richfaces.cdk.util.Pair Maven / Gradle / Ivy
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/*
* $Id$
*
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.richfaces.cdk.util;
/**
*
*
*
* @author [email protected]
*/
public class Pair {
private final A first;
private final B second;
/**
*
*
*
* @param first
* @param second
*/
public Pair(A first, B second) {
this.first = first;
this.second = second;
}
public static Pair of(X first, Y second) {
return new Pair(first, second);
}
/**
*
*
*
* @return the first
*/
public A getFirst() {
return this.first;
}
/**
*
*
*
* @return the second
*/
public B getSecond() {
return this.second;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((this.first == null) ? 0 : this.first.hashCode());
result = prime * result + ((this.second == null) ? 0 : this.second.hashCode());
return result;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#equals(java.lang.Object)
*/
@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 (this.first == null) {
if (other.first != null) {
return false;
}
} else if (!this.first.equals(other.first)) {
return false;
}
if (this.second == null) {
if (other.second != null) {
return false;
}
} else if (!this.second.equals(other.second)) {
return false;
}
return true;
}
}