1 /*

     2 * Copyright (c) 2003 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:  Virtual class defining an interface for an observer which gets

    15 *                notified when the topic list is changed. 

    16 *

    17 */

    18 

    19 

    20 

    21 #ifndef     MCBSDBTOPICLISTOBSERVER_H

    22 #define     MCBSDBTOPICLISTOBSERVER_H

    23 

    24 //  INCLUDES

    25 

    26 #include <e32base.h>

    27 #include "CbsCommon.h"

    28 

    29 //  CLASS DECLARATION 

    30 

    31 /**

    32 *   This class defines the interface for topic list observers.

    33 */

    34 class MCbsDbTopicListObserver

    35     {

    36     public:        // New functions

    37         /**

    38         *   Indicates that the topic list has been initialized.

    39         */

    40         virtual void TopicListInitializedIndL() = 0;

    41 

    42         /**

    43         *   Indicates that a new topic has been added.

    44         *

    45         *   @param  aNumber         Number of the topic that has been added

    46         */

    47         virtual void TopicAddedIndL( const TCbsDbTopicNumber& aNumber ) = 0;

    48 

    49         /**

    50         *   Indicates that a topic has been deleted.

    51         *

    52         *   @param  aNumber         Number of the topic that was deleted.

    53         */

    54         virtual void TopicDeletedIndL( const TCbsDbTopicNumber& aNumber ) = 0;

    55 

    56         /**

    57         *   Indicates that a topic has been modified.

    58         *

    59         *   @param  aNumber         Number of the topic that has been modified.

    60         */

    61         virtual void TopicModifiedIndL( const TCbsDbTopicNumber& aNumber ) = 0;

    62 

    63         /**

    64         *   Indicates that a topic has received a new message.

    65         *

    66         *   @param  aNumber         Number of the topic that has received 

    67         *                           a new message.

    68         */

    69         virtual void TopicNewMessageReceivedIndL( 

    70             const TCbsDbMessageHandle& aNumber ) = 0;

    71     };

    72 

    73 #endif      //  MCBSDBTOPICLISTOBSERVER_H   

    74             

    75 // End of File