diff -r 000000000000 -r ba25891c3a9e installationservices/swi/inc/swiobserverplugin.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/installationservices/swi/inc/swiobserverplugin.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,77 @@
+/*
+* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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: 
+* Interface definition for SWI Observer ECOM plug-in.
+*
+*/
+
+
+/**
+ @file
+ @internalTechnology
+ @released
+*/
+ 
+ #ifndef SWIOBSERVERPLUGIN_H
+ #define SWIOBSERVERPLUGIN_H
+ 
+ #include <e32base.h>
+ #include <ecom/ecom.h>
+ 
+ #include <swi/swiobcommon.h>
+ #include <swi/swiobservedinfo.h>
+ 
+ namespace Swi
+ 	{
+	/**
+		Abstract base class for a SWI Observer ECOM plug-in.
+			
+		SWI Observer plug-ins are primarily	responsible for submitting SWI event 
+		notifications to the related system server asynchronously. This
+		interface allows components to register their interest in SWI events.
+		System servers which wish to register to the SWI Observer implement
+		a concrete class derived from this abstract class.
+	 */
+	 class CSwiObserverPlugin : public CActive
+	 	{
+	 public:
+	 	IMPORT_C static CSwiObserverPlugin* NewL( const TUid& aImplementationId);
+	 		
+	 	virtual void StartL(RFs& aFs) = 0;
+	 	virtual void NextObservedHeaderL(const CObservationHeader& aHeader, TRequestStatus& aStatus) = 0;	
+	 	virtual void NextObservedDataL(const CObservationData& aData, TInt aFilterIndex, TRequestStatus& aStatus) = 0;	
+	 	virtual void FinalizeL(TRequestStatus& aStatus) = 0;
+	 	virtual CObservationFilter* GetFilterL() const = 0;
+	 		
+	 	IMPORT_C virtual TInt GetExtension(TUint aExtensionId, TAny*& a0, TAny* a1);
+	 		
+	 	IMPORT_C ~CSwiObserverPlugin();
+	 	
+	 protected:
+	 	IMPORT_C CSwiObserverPlugin();
+	 	IMPORT_C virtual TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1);
+	 		
+	 private:
+		TUid iDtor_ID_Key;		// Required by ECOM
+		TAny* iReserved;
+	 	};
+	 	
+	 /** Hosting the SWI Observer Plugin Interface UID. */	
+	 const TUid KUidSwiObserverPluginInterface = {0x10283724};
+	 		
+ 	} // End of namespace Swi
+ 
+ #endif
+ 
+ 
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