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 "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:  MTCStatePool interface declaration.

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef TCTRANSACTIONHANDLER_H

    21 #define TCTRANSACTIONHANDLER_H

    22 

    23 // INCLUDES

    24 #include <e32std.h>

    25 #include <sensrvtypes.h>

    26 

    27 #include "tctransaction.h"

    28 

    29 // FORWARD DECLARATIONS

    30 

    31 // CLASS DECLARATION

    32 

    33 /**

    34 *  Transaction handler. States can utilize transaction

    35 *  handler to execute specific actions.

    36 *  All transactions are asynchronous.

    37 *

    38 *  Transaction handler also provides needed data model for

    39 *  state classes.

    40 *

    41 *  @lib None

    42 *  @since S60 5.0

    43 */

    44 NONSHARABLE_CLASS( MTCTransactionHandler )

    45     {

    46     public:

    47     

    48         /**

    49         * Process a transaction.

    50         *

    51         * @param aId Transaction ID.

    52         * @param aTransaction Transaction object.

    53         */

    54         virtual void ProcessTransactionL( TTCTransactionId aId,

    55             TTCTransaction* aTransaction = NULL ) = 0;

    56 

    57         /**

    58         * Checks if new transaction can be sent.

    59         *

    60         * @return ETrue if there is existing transaction being processed.

    61         */

    62         //virtual TBool ReadyForTransaction() const = 0;

    63         

    64         /**

    65         * Access to data buffer.

    66         * Fill the channel data into this buffer.

    67         *

    68         * @return TUint8*

    69         */

    70         virtual TUint8* DataBuffer() const = 0;

    71 

    72         /**

    73         * Access to data item count.

    74         * How many channel data items are requested.

    75         *

    76         * @return TInt

    77         */

    78         virtual TInt DataCount() const = 0;

    79         

    80         /**

    81         * Access to current channel properties.

    82         * 

    83         * @return const RSensrvPropertyList&

    84         */

    85         virtual const RSensrvPropertyList& Properties() const = 0;

    86 };

    87 

    88 #endif // TCTRANSACTIONHANDLER_H

    89 

    90 // End of File