/*

* Copyright (c) 2005-2007 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:  An implementation for operations that needs to do a big task

*                and report steps to observers. Can be used e.g

*                in store domain implementation to handle multiple store

*                operations

*

*/

#ifndef CVPBKBATCHOPERATION_H

#define CVPBKBATCHOPERATION_H

// INCLUDE FILES

#include <CVPbkMultiContactOperationBase.h>

#include <MVPbkBatchOperationObserver.h>

// CLASS DECLARATION

/**

 * An implementation for batch operations

 *

 * @lib VPbkEng.lib

 */

class CVPbkBatchOperation :   

        public CVPbkMultiContactOperationBase,

        public MVPbkBatchOperationObserver

    {

    public:

        /**

         * @param aObserver the observer that is called after 

         *                  all suboperations have completed or 

         *                  there are zero suboperations.

         * @return A new instance of this class

         */

        IMPORT_C static CVPbkBatchOperation* NewLC( 

            MVPbkBatchOperationObserver& aObserver );

        ~CVPbkBatchOperation();

    // from base class CVPbkMultiContactOperationBase

    private:

        void HandleZeroSuboperations();

    // from base class MVPbkBatchOperationObserver

        void StepComplete( MVPbkContactOperationBase& aOperation, TInt aStepSize );

        TBool StepFailed( MVPbkContactOperationBase& aOperation, TInt aStepSize, 

            TInt aError );

        void OperationComplete( MVPbkContactOperationBase& aOperation );

    private: // Implementation

        CVPbkBatchOperation( MVPbkBatchOperationObserver& aObserver );

    private: // Data

        /// Ref: Operation observer

        MVPbkBatchOperationObserver& iObserver;

        /// Own: A counter for completed suboperations

        TInt iCompleteCount;

    };

#endif // CVPBKBATCHOPERATION_H

// End of file