/*

* Copyright (c) 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:  CCFContextDataProxy class declaration.

*

*/

#ifndef C_CFCONTEXTDATAPROXY_H

#define C_CFCONTEXTDATAPROXY_H

#include <cfcontextdataobject.h>

// CONSTANTS

const TUid KContextDataProxyUid = { 0x2000B4CF };

/**

* This class is intended to use to transmit data object send from

* a client process to all interested subscribers. The reason for this

* is that a context data sent from a client process need to be internalized

* in to object before it can be published. Since cfserver don't know and

* does not need to know the corret object CCFContextDataProxy is used to

* transmit the data which can be then processed and set in a context

* indication.

*

* Do not use this class for any other purposes!

*

* @internal

* @since S60 5.0

* @lib None

*/

NONSHARABLE_CLASS( CCFContextDataProxy ): public CCFContextDataObject

    {

    public:

        // Two phased constructors

        IMPORT_C static CCFContextDataProxy* NewL();

        IMPORT_C static CCFContextDataProxy* NewLC();

        // Destructor

        ~CCFContextDataProxy();

    public: // New methods

        /**

        * Set context data uid.

        *

        * @since S60 5.0

        * @param aUid The context data UID.

        * @return None.

        */

        IMPORT_C void SetContextDataUid( const TUid& aUid );

        /**

        * Set context data object.

        * 

        * @since S60 5.0

        * @param aData Streamed context data.

        * @return None.

        */

        IMPORT_C void SetContextData( HBufC8* aData );

    private: // From base class CCFContextDataObject

        // @see CCFContextDataObject

        const TUid& Uid() const;

        // @see CCFContextDataObject

        void ExternalizeL( RWriteStream& aStream );

        // @see CCFContextDataObject

        void InternalizeL( RReadStream& aStream );

        // @see CCFContextDataObject

        TInt Size() const;

    private:

        CCFContextDataProxy();

        void ConstructL();

    private: // Data

        /** Context data */

        HBufC8* iData;

        /** Context data uid */

        TUid iUid;

    };

#endif