diff -r 000000000000 -r ba25891c3a9e iaupdate/IAD/engine/controller/inc/iaupdatenodehandlerobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/iaupdate/IAD/engine/controller/inc/iaupdatenodehandlerobserver.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,90 @@
+/*
+* Copyright (c) 2006-2006 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:   ?description
+*
+*/
+
+
+
+#ifndef IAD_UPDATE_NODE_HANDLER_OBSERVER_H
+#define IAD_UPDATE_NODE_HANDLER_OBSERVER_H
+
+
+#include <e32base.h>
+
+
+class MNcdNode;
+
+
+class MIAUpdateNodeHandlerObserver
+{
+public:
+
+    /**
+     * Node load of the node is completed successfully and data of the node
+     * is updated.
+     *
+     * @param aNode The node whose data is updated.
+     * @param aInstalling indicates if the node is being installed (only used by content handler)
+     */
+    virtual void NodeUpdated( MNcdNode* aNode, TBool aInstalling = EFalse ) = 0;
+    
+    /**
+     * Node load of a parent node is completed.
+     *
+     * @param aNode The parent node which is loaded.
+     * @param aError The completion code. KErrNone if the loading
+     * process has been completed successfully. Otherwise some
+     * of the system wide error codes.
+     */
+    virtual void ParentNodeLoadComplete( MNcdNode* aNode, TInt aError ) = 0;
+    
+    /**
+     * All node loads started by this observer are completed.
+     */
+    virtual void NodeLoadsComplete() = 0;
+    
+    /**
+     * All structure loads started by this observer are completed.
+     *
+     * @param aError Completion code:
+     *   - KErrNone if strcuture loads was completed successfully.
+     *   - KErrCancel if the structure load is canceled.
+     *   - Otherwise some of the system wide error codes.
+     *     NOTE: If a structure load operation fails all ongoing structure
+     *     load operations started by this observer are canceled.
+     */
+    virtual void StructureLoadsComplete( TInt aError ) = 0;
+    
+    /**
+     * Child node load has failed.
+     *
+     * @param aError Error code.
+     */
+    virtual void NotifyNodeLoadError( TInt aError ) = 0;
+
+
+protected:
+
+    /**
+     * Protected destructor to prevent unwanted deletion.
+     * The object can be deleted only through the inherited
+     * classes.
+     */
+    virtual ~MIAUpdateNodeHandlerObserver() { }
+
+};
+
+#endif // IAD_UPDATE_NODE_HANDLER_OBSERVER_H
+