1 mcontactbackupobserver.h

     1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __MCONTACTBACKUPOBSERVER_H__

    17 #define __MCONTACTBACKUPOBSERVER_H__

    18 

    19 

    20 class MContactBackupObserver

    21 /**	

    22 	An observer class to which Contacts model clients should 

    23 	subscribe in order to be informed about the progress of 

    24 	a backup or restore operation.

    25 

    26 	@publishedAll

    27 	@released

    28 */

    29 	{

    30 public:

    31 /**	

    32 	Provides notification that a backup operation is to begin.

    33 	The Contacts model client should not access the contacts database for 

    34 	writing until BackupRestoreCompletedL() is called.

    35 */

    36 	virtual void BackupBeginningL()	= 0;

    37 

    38 /**	

    39 	Provides notification that a restore operation is to begin.

    40 	The Contacts model client should not access the contacts database at all 

    41 	until BackupRestoreCompletedL() is called.

    42 */

    43 	virtual void RestoreBeginningL() = 0;

    44 

    45 /**	

    46 	Provides notification that a backup/restore operation is complete.

    47 	The contacts database can be accessed again.

    48 */

    49 	virtual void BackupRestoreCompletedL() = 0;

    50 

    51 	};

    52 

    53 

    54 #endif // __MCONTACTBACKUPOBSERVER_H__