--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uidesigner/com.nokia.sdt.uimodel/src/com/nokia/sdt/component/customizer/ICustomizeComponentCommand.java	Fri Apr 03 23:33:03 2009 +0100
@@ -0,0 +1,47 @@
+/*
+* 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();
+
+}