1 /*

     2 * Copyright (c) 2008 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:  message change observer

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef __MIMCACHECLIENT_H

    21 #define __MIMCACHECLIENT_H

    22 

    23 #include <e32std.h>

    24 #include <imcachedefs.h>

    25 

    26 /**

    27  * An interface through which client gets information

    28  * about available  data updates.

    29  *

    30  * @since

    31  */

    32 class MIMCacheClient

    33     {

    34     public:

    35     

    36     	

    37 		/**

    38     	* Registeres the cache update observer to server

    39     	* @param aStatus status message to regisetr

    40 		* @param aRight, operations

    41     	*/

    42         virtual void RegisterObserverToServerL( TRequestStatus& aStatus, EIMCacheOperations aRight ) = 0;

    43         

    44         /**

    45     	* unRegisteres the cache update  observer to server

    46     	* @param aStatus status message to regisetr

    47 		* @param aRight, operations

    48     	*/

    49         virtual void UnRegisterObserverToServerL( TRequestStatus& aStatus, EIMCacheOperations aRight ) = 0 ;

    50               

    51         /**

    52         * Gets called when data update is available.

    53         * Client can then decide wether to use the old one

    54         * @param aRight, operations

    55         * @param abuuferptr 

    56         */

    57         virtual TPtr8 GetBufferedDataL(EIMCacheOperations aOperationType ) = 0 ;

    58         

    59         /**

    60          * cancels any outstanding requests pending from the server

    61          * @param aStatus status message to regisetr

    62          * @param aRight,right is operations

    63          */

    64         virtual void CancelRequestL( TRequestStatus& aStatus, EIMCacheOperations aRight) = 0;

    65          

    66 protected:

    67     	/**

    68     	* Destructor

    69     	*/

    70     	virtual ~MIMCacheClient() {};

    71     };

    72 

    73 #endif //__MIMCACHECLIENT_H

    74 

    75