gnu.trove.TObjectIdentityHashingStrategy Maven / Gradle / Ivy
///////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2002, Eric D. Friedman All Rights Reserved.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// 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 General Public License for more details.
//
// You should have received a copy of the GNU Lesser 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 gnu.trove;
/**
* This object hashing strategy uses the System.identityHashCode
* method to provide identity hash codes. These are identical to the
* value produced by Object.hashCode(), even when the type of the
* object being hashed overrides that method.
*
* Created: Sat Aug 17 11:13:15 2002
*
* @author Eric Friedman
* @version $Id: TObjectIdentityHashingStrategy.java,v 1.4 2007/06/11 15:26:44 robeden Exp $
*/
public final class TObjectIdentityHashingStrategy implements TObjectHashingStrategy {
/**
* Delegates hash code computation to the System.identityHashCode(Object) method.
*
* @param object for which the hashcode is to be computed
* @return the hashCode
*/
public final int computeHashCode(T object) {
return System.identityHashCode(object);
}
/**
* Compares object references for equality.
*
* @param o1 an Object value
* @param o2 an Object value
* @return true if o1 == o2
*/
public final boolean equals(T o1, T o2) {
return o1 == o2;
}
} // TObjectIdentityHashingStrategy