/*

* Copyright (c) 2006 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:  callback class implemented for synchronous api's.

*

*/

#ifndef C_CONTACTSYNCCALLBACK_H

#define C_CONTACTSYNCCALLBACK_H

#include <e32std.h>

#include "contactcallback.h"

/**

 *class CContactSyncCallback

 *class to implement the callback class which is needed in cases of synchronous implementation of the api's.

 */

class CContactSyncCallback: public CBase ,public MContactCallback

    {

     public:

         /**

          *Default constructor.

          */

         CContactSyncCallback();

          /**

           *Destructor.

           */

         ~CContactSyncCallback();

         /**

          *Getter method to get a pointer to the iterator does a shallow copy.

          *@return value CContactIter*, an iterator class pointer.

          */

         CContactIter* GetIter();

         /**

          *Getter method to get error code.

          *@return value TInt, integer error code KErrNone if no error

          *occured else can be any system wide error code.

          */

         TInt GetErrorCode();

         /**

          *setter method for the wait shceduler shallow copy owned by core class.

          *@return void.

          */

         void SetWaitScheduler(CActiveSchedulerWait *aWaitScheduler);         

         /**

          *virtual method inherited from the MContactCallback interface class

          *called by the core class if any event occurs in the asynchronous call.

          *@param aError error code.

          *@param aTransId trasaction Id of the asychronous call.

          *@return void.

          */

         virtual void HandleReturnValue(TOperationEvent aEvent, const TInt& aError, TInt aTransId );

         /**

          *virtual method inherited from the MContactCallback interface class

          *called by the core class if any  asynchronous call completes successfully .

          *@param aError error code.

          *@param aIter pointer to the CContactIter class.

          *@param aTransId trasaction Id of the asychronous call.

          *@return void.

          */

         virtual void HandleReturnIter( const TInt& aError, CContactIter* aIter, TInt aTransId );

     private:

        //Pointer to the CContactIter class.

        CContactIter* iIter;

        //Integer error code.

        TInt iError;

        //Scheduler pointer owned by core class used by this class

        CActiveSchedulerWait *iWaitScheduler;

    public:

        TInt iErrKey;    

    };

#endif    //C_CONTACTSYNCCALLBACK_H