/*

* Copyright (c) 2002-2007 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:  Virtual Phonebook base class for asynchronous contact 

*                operations.

*

*/

#ifndef MVPBKCONTACTOPERATIONBASE_H

#define MVPBKCONTACTOPERATIONBASE_H

// INCLUDES

#include <e32cmn.h>

// CLASS DECLARATIONS

/**

 * Virtual Phonebook abtract asynchronous contact operation.

 * This interface is used as a handle to asynchronous contact operations.

 * Clients should keep a reference to the handle during the asynchronous 

 * operation to be able to delete and cancel the operation before it

 * completes.

 */

class MVPbkContactOperationBase

    {

    public:  // Interface

        /**

         * Destructor. Cancels this operation and releases any 

         * resources held by it.

         */

        virtual ~MVPbkContactOperationBase() {}

        /**

         * Returns an extension point for this interface or NULL.

         * @param aExtensionUid Uid of extension.

         * @return Extension point or NULL.

         */

        virtual TAny* ContactOperationBaseExtension(

                TUid /*aExtensionUid*/) { return NULL; }

    };

#endif // MVPBKCONTACTOPERATIONBASE_H

// End of File