/*

* 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 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: 

*

*/

#ifndef __MIPTVSTREAMOBJECT_H__

#define __MIPTVSTREAMOBJECT_H__

#include <e32base.h>

#include <s32mem.h>

class RReadStream;

class RWriteStream;

// CLASS DECLARATION

/**

* This class specifies the interface for iptv stream object.

*

* @lib IptvUtil.lib

*/

class MIptvStreamObject

    {

    public: // New functions

        /**

        * Serializes this object from aStream.

        *

        * @param aStream 

        */

        virtual void InternalizeL(RReadStream& aStream) = 0;  

        /**

        * Serializes this object to aStream.

        *

        * @param aStream

        */

        virtual void ExternalizeL(RWriteStream& aStream) = 0;  

        /**

        * Returns the size required for externalization buffer in 8-bit

        * bytes.

        */

        virtual TUint32 CountExternalizeSize() = 0;

    public:

        /**

        * Can be used to identify the stream object.

        * This variable is not serialized in InternalizeL and ExternalizeL.

        */

        TInt iObjId;  

    };

#endif