// Copyright (c) 1997-2009 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:

 // The definition of the MPolicyObserver class

 // 

 //

 #ifndef __POLICYOBSERVER_H__

 #define __POLICYOBSERVER_H__

 #include "UnloadPolicy.h"

 #include "EComEntry.h"

 /**

 	@internalComponent

 	@since 7.0

 	Used by CRegistryData to inform the load manager when a change to the registry

 	occurs.

  */

 class MPolicyObserver

 	{

 public:

 /**

 	@fn				DllDeletedL(CUnloadPolicy*& aUnloadPolicy) = 0

 	Intended Usage	: Called to indicate that a dll has been removed from the registry

 	Error Condition	: Leaves with an error code depending on implementation

 	@since			7.0

 	@param			aUnloadPolicy The CUnloadPolicy of the dll which has been removed

 */

 	virtual void DllDeletedL(CUnloadPolicy*& aUnloadPolicy) = 0;

 /**

 	@fn				DllAdded(const CEComEntry& aDllInfo) = 0

 	Intended Usage	: Called to indicate that a dll has been added to the registry

 	Error Condition	: None

 	@since			7.0

 	@param			aDllInfo Information on the dll which has been added to the registry

 	@return			The unload policy for the dll if one exists, NULL otherwise

 */

 	virtual CUnloadPolicy* DllAdded(const CEComEntry& aDllInfo) = 0;

 /**

 	@fn				UpdatePolicyIndexL() = 0

 	Intended Usage	: Called to indicate the index of unload policies will be out of date 

 	Error Condition	: Leaves with an error code depending on implementation

 	@since			7.0

 	@param			aDllInfo Information on the dll which has been added to the registry

 */

 	virtual void UpdatePolicyIndexL() = 0;

 	};

 #endif // __POLICYOBSERVER_H__