diff -r 000000000000 -r ba25891c3a9e appinstall_plat/iaupdate_api/inc/iaupdateobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/appinstall_plat/iaupdate_api/inc/iaupdateobserver.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,100 @@
+/*
+* Copyright (c) 2007-2008 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:   This file contains the header file of the MIAUpdateObserver class 
+*
+*/
+
+
+#ifndef IA_UPDATE_OBSERVER_H
+#define IA_UPDATE_OBSERVER_H
+
+
+class CIAUpdateResult;
+
+
+/**
+ * MIAUpdateObserver provides callback functions that the updater will call
+ * when an update operation has been completed.
+ *
+ * @note If an update is targeted to multiple items during one operation call, 
+ * the observer is informed only once about the completion. This is done,
+ * when the update operation as a whole has been completed.
+ *
+ * @note When the application updates itself, installation requires the shutdown 
+ * of the application. Then, the updater will continue the update operation 
+ * in the background but callbacks to nonexisting observers are skipped. 
+ * After installation is finished, the updated application will be restarted 
+ * if that information is included in CIAUpdateParameters.
+ *
+ * @note An application may also update itself without a need for restart. 
+ * For example, when plug-ins are retrieved for the application. 
+ * Then, the callback functions of the observer can be called from the updater. 
+ * And, the observer will know when the necessary updates have been installed.
+ *
+ * @see CIAUpdate
+ * @see CIAUpdateParameters
+ * @see CIAUpdateResult
+ *
+ * @since S60 v3.2
+ */
+class MIAUpdateObserver
+    {
+
+public:
+
+    /** 
+     * This callback function is called when the update checking operation has completed.
+     *
+     * @param aErrorCode The error code of the observed update operation.
+     *                   KErrNone for successful completion, 
+     *                   otherwise a system wide error code.
+     * @param aAvailableUpdates Number of the updates that were found available.
+     *
+     * @since S60 v3.2
+     */
+    virtual void CheckUpdatesComplete( TInt aErrorCode, TInt aAvailableUpdates ) = 0;
+
+
+    /** 
+     * This callback function is called when an update operation has completed.
+     * Even if multiple functions are provided to start different update operations,
+     * this callback function is always called after an update operation has completed.
+     *
+     * @param aErrorCode The error code of the completed update operation.
+     *                   KErrNone for successful completion, 
+     *                   otherwise a system wide error code.
+     * @param aResult Details about the completed update operation.
+     *                Ownership is transferred.
+     *
+     * @since S60 v3.2
+     */
+    virtual void UpdateComplete( TInt aErrorCode, CIAUpdateResult* aResult ) = 0;
+
+
+    /** 
+     * This callback function is called when an update query operation has completed.
+     *
+     * @param aErrorCode The error code of the observed query operation.
+     *                   KErrNone for successful completion, 
+     *                   otherwise a system wide error code.
+     * @param aUpdateNow ETrue informs that an update operation should be started.
+     *                   EFalse informs that there is no need to start an update
+     *                   operation.
+     * @since S60 v3.2
+     */
+    virtual void UpdateQueryComplete( TInt aErrorCode, TBool aUpdateNow ) = 0;
+
+    };
+
+#endif // IA_UPDATE_OBSERVER_H