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/*
* Copyright (c) 2007-2009, 2011-2013 Eike Stepper (Berlin, Germany) 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:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.net4j.util.collection;
import org.eclipse.net4j.util.ObjectUtil;
/**
* @author Eike Stepper
*/
public class Pair<T1, T2>
{
private T1 element1;
private T2 element2;
public Pair()
{
}
public Pair(T1 element1, T2 element2)
{
this.element1 = element1;
this.element2 = element2;
}
/**
* @since 2.0
*/
public Pair(Pair<T1, T2> source)
{
element1 = source.element1;
element2 = source.element2;
}
public final T1 getElement1()
{
return element1;
}
public void setElement1(T1 element1)
{
this.element1 = element1;
}
public final T2 getElement2()
{
return element2;
}
public void setElement2(T2 element2)
{
this.element2 = element2;
}
/**
* @since 2.0
*/
@Override
public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
if (obj instanceof Pair<?, ?>)
{
Pair<?, ?> that = (Pair<?, ?>)obj;
return ObjectUtil.equals(element1, that.getElement1()) && ObjectUtil.equals(element2, that.getElement2());
}
return false;
}
/**
* @since 2.0
*/
@Override
public int hashCode()
{
return ObjectUtil.hashCode(element1) ^ ObjectUtil.hashCode(element2);
}
/**
* @since 2.0
*/
@Override
public String toString()
{
return "Pair[" + element1 + ", " + element2 + "]"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
/**
* @since 3.3
*/
public Pair<T1, T2> copy()
{
return new Pair<T1, T2>(this);
}
/**
* @since 3.3
*/
public static <T1, T2> Pair<T1, T2> create()
{
return new Pair<T1, T2>();
}
/**
* @since 3.3
*/
public static <T1, T2> Pair<T1, T2> create(T1 element1, T2 element2)
{
return new Pair<T1, T2>(element1, element2);
}
}
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