contentstorage/casrv/casatmonitor/inc/casatnotifier.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 27 May 2010 13:11:12 +0300
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permissions -rw-r--r--
Revision: 201019 Kit: 2010121
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: casatnotifier.h
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*
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*/
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#ifndef CCASATNOTIFIER_H
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#define CCASATNOTIFIER_H
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// INCLUDES
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#include <e32base.h>
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#include <e32property.h>
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//Forward declatations
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class RProperty;
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/*
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 *   Callback for notifier.
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 */
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class MCaSatNotifierCallback
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    {
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public:
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    /**
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     * SatChangeL is called when the subscribed key has been changed
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     *
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     */
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    virtual void SatChangeL() = 0;
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    };
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/**
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 * Central repository notifier
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 */
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class CCaSatNotifier: public CActive
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    {
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public:
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    // Construction and destruction
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    /**
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     * Creates an instance of CCaSatNotifier implementation.
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     * @param aCallBack Reference to notifier interface
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     * @param aCategory application uid
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     * @param aKey key for central repository
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     */
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    static CCaSatNotifier* NewLC(
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            MCaSatNotifierCallback* aCallback, TUid aCategory, TUint aKey );
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    /**
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     * Creates an instance of CCaSatNotifier implementation.
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     * @param aCallBack Reference to notifier interface
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     * @param aCategory application uid
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     * @param aKey key for central repository
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     */
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    static CCaSatNotifier* NewL(
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            MCaSatNotifierCallback* aCallback, TUid aCategory, TUint aKey );
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    /**
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     * Destructor.
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     */
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    virtual ~CCaSatNotifier();
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private:
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    // From base classes
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    /**
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     * From CActive.
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     */
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    void DoCancel();
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    void RunL();
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    TInt RunError( TInt aError );
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private:
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    // Constructor
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    CCaSatNotifier( MCaSatNotifierCallback* aCallback, TUid aCategory,
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            TUint aKey );
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    /**
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     * By default Symbian 2nd phase constructor is private.
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     */
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    void ConstructL();
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private:
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    // Data
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    // User side interface to Publish & Subscribe.
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    RProperty iProperty;
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    // Interface for notifying changes in SAT
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    MCaSatNotifierCallback* iCallback;
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    // category uid
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    TUid iCategory;
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    // key identifier
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    TUint iKey;
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    };
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#endif // CCASATNOTIFIER_H
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// End of File