1 /*

     2 * Copyright (c) 2009 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 "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:  MExpression interface, defines basics for all the protocol

    15 *                expressions

    16 *

    17 */

    18 

    19 

    20 

    21 #ifndef MBPEXPRESSION_H

    22 #define MBPEXPRESSION_H

    23 

    24 //  INCLUDES

    25 #include <e32def.h>

    26 #include <e32base.h>

    27 

    28 class MExpressionObserver;

    29 

    30 // CLASS DECLARATION

    31 

    32 /**

    33 *  MProtocol interface.

    34 */

    35 NONSHARABLE_CLASS( MBPExpression )

    36     {

    37 

    38     public: // Abstract functions

    39 

    40         /**

    41         * Tries to handle the message, and informs if the msg does

    42         * not belong to it.

    43         *

    44         * @param aData Message to parse

    45         * @param aStartPos The index from where the message frame begins

    46         * @param aLength Length of the message

    47         * @return ETrue if the expression can handle the message,

    48         *         EFalse if not.

    49         */

    50         virtual TBool HandleRecievedMsgL(  TDes8& aData,

    51                                            TInt& aStartPos,

    52                                            TInt& aLength ) = 0;

    53 

    54         /** Virtual destructor

    55         *

    56         */

    57         virtual ~MBPExpression() {};

    58     };

    59 

    60 #endif      // MBPEXPRESSION_H

    61 

    62 // End of File