Bug 89031 [Undo/Redo] IWorkbench#getOperationSupport() marked experimental
IWorkbench#getOperationSupport() marked experimental
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/operations/IHistoryNotificationAwareOperation.java
/*******************************************************************************
 * Copyright (c) 2005 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
 *******************************************************************************/
package org.eclipse.core.commands.operations;
/**
 * <p>
 * IHistoryNotificationAwareOperation extends IUndoableOperation to receive notifications
 * from its containing operation history before the history sends any notifications
 * involving the receiver to its listeners.
 * <p>
 * This interface is intended to be used by legacy frameworks that are adapting their
 * old undo and redo support to this framework.  Operations that previously relied
 * on notification from their containing history or stack before its listeners are 
 * notified about changes to the operation should implement this interface.
 * Cooperating operation history implementations should check for the implementation of
 * this interface and send notifications when it is present.
 * <p>