/*******************************************************************************

 * Copyright (C) 2006 Nokia Corporation. All rights reserved.

 * 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

 *******************************************************************************/

package com.nokia.sdt.component.property;

public interface IUndoablePropertySource {

	/**

	 * Returns an opaque object that can be used to set this property source to a previous state.

	 * 

	 * @return Object

	 */

	public Object getUndoValue();

	/**

	 * Resets this property source to the state it had when getUndoValue() was called.

	 * 

	 * @param undoValue an Object

	 * @param preserveLocalizedStringKeys if true, localized string keys (macros) are

	 * preserved if they don't collide with existing keys. When false, or upon collision

	 * new keys are generated.

	 */

 	public void setFromUndoValue(Object undoValue, boolean preserveLocalizedStringKeys);

}