1 /*

     2 * Copyright (c) 2009-2010 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:

    15 * Listens for changes in one CommsDat table through CenRep.

    16 *

    17 */

    18 

    19 

    20 #ifndef CMMDBCHANGELISTENER_H_

    21 #define CMMDBCHANGELISTENER_H_

    22 

    23 #include <e32base.h>

    24 

    25 class CCmmListenerManager;

    26 class CRepository;

    27 

    28 // Stop requesting new notifications after this many consecutive errors

    29 const TInt KCmmCenRepErrorThreshold = 50;

    30 

    31 

    32 NONSHARABLE_CLASS( CCmmDbChangeListener ) : public CActive

    33     {

    34 public:

    35     static CCmmDbChangeListener* NewL(

    36             CCmmListenerManager* aListenerManager,

    37             TUint32 aTableId );

    38 

    39     static CCmmDbChangeListener* NewLC(

    40             CCmmListenerManager* aListenerManager,

    41             TUint32 aTableId );

    42 

    43     virtual ~CCmmDbChangeListener();

    44 

    45 private:

    46     CCmmDbChangeListener(

    47             CCmmListenerManager* aListenerManager,

    48             TUint32 aTableId );

    49 

    50     void ConstructL();

    51 

    52 public:

    53     TUint32 GetTableId();

    54     TInt Start();

    55 

    56 private: // Methods from base class

    57     void DoCancel();

    58     void RunL(); // Don't leave, or implement RunError() //TODO, implement RunError()

    59 

    60 private:

    61     TInt RequestNotification();

    62 

    63 private:

    64     // Manager object that handles all similar listeners.

    65     CCmmListenerManager* iListenerManager; // Not owned

    66 

    67     // Central Repository handle.

    68     CRepository* iRepository; // Owned

    69 

    70     // Table ID of the commsdat table to be listened.

    71     TUint32 iTableId;

    72 

    73     // Safeguard in case of CenRep errors.

    74     TInt iErrorCounter;

    75     };

    76 

    77 #endif // CMMDBCHANGELISTENER_H_

    78 

    79 // End of file