1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef __MIPTVSTREAMOBJECT_H__

    21 #define __MIPTVSTREAMOBJECT_H__

    22 

    23 #include <e32base.h>

    24 #include <s32mem.h>

    25 

    26 class RReadStream;

    27 class RWriteStream;

    28 

    29 // CLASS DECLARATION

    30 

    31 /**

    32 * This class specifies the interface for iptv stream object.

    33 *

    34 * @lib IptvUtil.lib

    35 */

    36 class MIptvStreamObject

    37     {

    38         

    39     public: // New functions

    40 

    41         /**

    42         * Serializes this object from aStream.

    43         *

    44         * @param aStream 

    45         */

    46         virtual void InternalizeL(RReadStream& aStream) = 0;  

    47 

    48         /**

    49         * Serializes this object to aStream.

    50         *

    51         * @param aStream

    52         */

    53         virtual void ExternalizeL(RWriteStream& aStream) = 0;  

    54 

    55         /**

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

    57         * bytes.

    58         */

    59         virtual TUint32 CountExternalizeSize() = 0;

    60 

    61     public:

    62         /**

    63         * Can be used to identify the stream object.

    64         * This variable is not serialized in InternalizeL and ExternalizeL.

    65         */

    66         TInt iObjId;  

    67     };

    68 

    69 #endif