/*
* Copyright 1990-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* 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 version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.javame.sensor.helper;
/**
* This class can be used in standard CLDC collections to force them to check
* identity not equality, like in JSE classes IdentityHashMap and
* IdentityHashSet.
*/
public class IdentityWrapper {
/** The wrapped object instance. */
private final Object wrapped;
/**
* Wrapper constructor.
*
* @param obj wrapped object
*/
public IdentityWrapper(Object obj) {
this.wrapped = obj;
}
/**
* Checks identity of wrapped objects.
*/
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final IdentityWrapper other = (IdentityWrapper) obj;
return wrapped == other.wrapped;
}
public int hashCode() {
return System.identityHashCode(wrapped);
}
public String toString() {
return wrapped.toString();
}
/**
* Get wrapped object.
*
* @return wrapped object instance
*/
public Object getWrapped() {
return wrapped;
}
}