/*

* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

package com.nokia.sdt.component.customizer;

/**

 * 

 *

 */

public interface ICustomizeComponentCommand {

	/**

	 * @return whether the command can execute

	 */

	boolean canExecute();

	/**

	 * @return error string or <code>null</code> if success

	 */

	String execute();

	/**

	 * @return error string or <code>null</code> if success

	 */

	String undo();

	/**

	 * @return error string or <code>null</code> if success

	 */

	String redo();

}