/*

* Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

* Listens for changes in one CommsDat table through CenRep.

*

*/

#ifndef CMMDBCHANGELISTENER_H_

#define CMMDBCHANGELISTENER_H_

#include <e32base.h>

class CCmmListenerManager;

class CRepository;

// Stop requesting new notifications after this many consecutive errors

const TInt KCmmCenRepErrorThreshold = 50;

NONSHARABLE_CLASS( CCmmDbChangeListener ) : public CActive

    {

public:

    static CCmmDbChangeListener* NewL(

            CCmmListenerManager* aListenerManager,

            TUint32 aTableId );

    static CCmmDbChangeListener* NewLC(

            CCmmListenerManager* aListenerManager,

            TUint32 aTableId );

    virtual ~CCmmDbChangeListener();

private:

    CCmmDbChangeListener(

            CCmmListenerManager* aListenerManager,

            TUint32 aTableId );

    void ConstructL();

public:

    TUint32 GetTableId();

    TInt Start();

private: // Methods from base class

    void DoCancel();

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

private:

    TInt RequestNotification();

private:

    // Manager object that handles all similar listeners.

    CCmmListenerManager* iListenerManager; // Not owned

    // Central Repository handle.

    CRepository* iRepository; // Owned

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

    TUint32 iTableId;

    // Safeguard in case of CenRep errors.

    TInt iErrorCounter;

    };

#endif // CMMDBCHANGELISTENER_H_

// End of file