diff -r ebe688cedc25 -r 7fdbb852d323 messagingappbase/ncnlist/inc/MNcnMsvSessionHandlerObserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messagingappbase/ncnlist/inc/MNcnMsvSessionHandlerObserver.h	Wed Sep 01 12:31:54 2010 +0100
@@ -0,0 +1,86 @@
+/*
+* Copyright (c) 2004 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:   Defines class MNcnMsvSessionHandlerObserver.
+*
+*/
+
+
+
+#ifndef NCNMSVSESSIONHANDLEROBSERVER_H
+#define NCNMSVSESSIONHANDLEROBSERVER_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <msvstd.h>
+
+// FORWARD DECLARATIONS
+class CMsvSession;
+
+// CLASS DECLARATION
+
+/**
+ * Observer interface for Msv session handling.
+ */
+class MNcnMsvSessionHandlerObserver
+    {
+    public:
+        /**
+         * Notifies that Msv session is ready to use.
+         * @param aMsvSession The Msv session.
+         */
+        virtual void HandleMsvSessionReadyL( CMsvSession& aMsvSession );
+
+        /**
+         * Notifies that Msv session is closed.
+         */
+        virtual void HandleMsvSessionClosedL();
+        
+        /**
+         * Notifies that an entry has been created.
+         * @apram aMsvId Id of the created entry.
+         */
+        virtual void HandleMsvEntryCreatedL( const TMsvId& aMsvId );
+        
+        /**
+         * Notifies that an entry has been created.
+         * @apram aMsvId Id of the deleted entry.
+         */
+        virtual void HandleMsvEntryDeletedL( const TMsvId& aMsvId );
+        
+         /**
+         * Notifies that the Message Server has automatically changed the index 
+         * location to use the internal disk.
+         * @param aDriveNumber The drive number where the message store moves
+         */
+         virtual void HandleMsvMediaChangedL( const TDriveNumber& aDriveNumber );
+         
+         /**
+         * The disk containing the Message Store is Unavailable again.
+         * Change the message store to default
+         */
+         virtual void HandleMsvMediaUnavailableL();
+         
+         
+		/** 
+		* The disk containing the Message Store is available again.
+		* The Message Server can now operate as normal
+		* @param aDriveNumber is a TDriveNumber value that identifies the drive that is being used.
+		*/
+        virtual void HandleMsvMediaAvailableL( const TDriveNumber& aDriveNumber );
+                  
+    };
+    
+#endif    // NCNMSVSESSIONHANDLEROBSERVER_H
+
+// End of File