diff -r 000000000000 -r ff3b6d0fd310 cbs/CbsServer/ServerInc/MCbsDbTopicListObserver.H
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cbs/CbsServer/ServerInc/MCbsDbTopicListObserver.H	Tue Feb 02 01:11:09 2010 +0200
@@ -0,0 +1,75 @@
+/*
+* Copyright (c) 2003 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:  Virtual class defining an interface for an observer which gets
+*                notified when the topic list is changed. 
+*
+*/
+
+
+
+#ifndef     MCBSDBTOPICLISTOBSERVER_H
+#define     MCBSDBTOPICLISTOBSERVER_H
+
+//  INCLUDES
+
+#include <e32base.h>
+#include "CbsCommon.h"
+
+//  CLASS DECLARATION 
+
+/**
+*   This class defines the interface for topic list observers.
+*/
+class MCbsDbTopicListObserver
+    {
+    public:        // New functions
+        /**
+        *   Indicates that the topic list has been initialized.
+        */
+        virtual void TopicListInitializedIndL() = 0;
+
+        /**
+        *   Indicates that a new topic has been added.
+        *
+        *   @param  aNumber         Number of the topic that has been added
+        */
+        virtual void TopicAddedIndL( const TCbsDbTopicNumber& aNumber ) = 0;
+
+        /**
+        *   Indicates that a topic has been deleted.
+        *
+        *   @param  aNumber         Number of the topic that was deleted.
+        */
+        virtual void TopicDeletedIndL( const TCbsDbTopicNumber& aNumber ) = 0;
+
+        /**
+        *   Indicates that a topic has been modified.
+        *
+        *   @param  aNumber         Number of the topic that has been modified.
+        */
+        virtual void TopicModifiedIndL( const TCbsDbTopicNumber& aNumber ) = 0;
+
+        /**
+        *   Indicates that a topic has received a new message.
+        *
+        *   @param  aNumber         Number of the topic that has received 
+        *                           a new message.
+        */
+        virtual void TopicNewMessageReceivedIndL( 
+            const TCbsDbMessageHandle& aNumber ) = 0;
+    };
+
+#endif      //  MCBSDBTOPICLISTOBSERVER_H   
+            
+// End of File