| /******************************************************************************* |
| * Copyright (c) 2006 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 |
| * Daniel Kruegler - bug 137435 |
| ******************************************************************************/ |
| |
| package org.eclipse.core.internal.databinding; |
| |
| /** |
| * Used for wrapping objects that define their own implementations of equals() |
| * and hashCode() when putting them in sets or hashmaps to ensure identity |
| * comparison. |
| * |
| * @since 1.0 |
| * |
| */ |
| public class IdentityWrapper { |
| final Object o; |
| |
| /** |
| * @param o |
| */ |
| public IdentityWrapper(Object o) { |
| this.o = o; |
| } |
| |
| /** |
| * @return the unwrapped object |
| */ |
| public Object unwrap() { |
| return o; |
| } |
| |
| public boolean equals(Object obj) { |
| if (obj == null || obj.getClass() != IdentityWrapper.class) { |
| return false; |
| } |
| return o == ((IdentityWrapper) obj).o; |
| } |
| |
| public int hashCode() { |
| return System.identityHashCode(o); |
| } |
| } |