| /******************************************************************************* |
| * Copyright (c) 2010, 2012 Oracle. 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: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.common.utility; |
| |
| /** |
| * Provide a container for passing an object that can be changed by the recipient. |
| */ |
| public interface ModifiableObjectReference<V> |
| extends ObjectReference<V> |
| { |
| /** |
| * Set the value. |
| * Return the previous value. |
| */ |
| V setValue(V value); |
| |
| /** |
| * Set the value to <code>null</code>. |
| * Return the previous value. |
| */ |
| V setNull(); |
| } |
