sysmodelmgr/com.symbian.smt.gui/src/com/symbian/smt/gui/smtwidgets/ValidModelObservable.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sysmodelmgr/com.symbian.smt.gui/src/com/symbian/smt/gui/smtwidgets/ValidModelObservable.java Thu Mar 11 19:08:43 2010 +0200
@@ -0,0 +1,40 @@
+// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "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:
+// ${file_name}
+//
+//
+
+package com.symbian.smt.gui.smtwidgets;
+
+public interface ValidModelObservable {
+
+ /**
+ * Registers the provided listener as an interested party in
+ * ValidModelEvents.
+ *
+ * @param listener
+ * the ValidModelDefinedListener object to be registered with
+ * this class.
+ */
+ void addModelListener(ValidModelDefinedListener listener);
+
+ /**
+ * Removes the provided listener from the list of registered listeners of
+ * ValidModelEvents.
+ *
+ * @param listener
+ * the ValidModelDefinedListener object to be unregistered.
+ */
+ void removeModelListener(ValidModelDefinedListener listener);
+}