/*+
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* Copyright (c) 2002 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: +
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*     Declares the CActiveApDbNotifier class.+
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*+
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*/+
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+
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+
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#ifndef ACTIVE_AP_DB_NOTIFIER_H+
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#define ACTIVE_AP_DB_NOTIFIER_H+
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+
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//  INCLUDES+
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+
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#include <e32base.h>+
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#include <ApEngineVer.h>+
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+
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+
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// FORWARD DECLARATIONS+
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+
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class CActiveApDb;+
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+
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// CLASS DECLARATION+
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+
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/**+
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* Active object encapsulating an access point database notifier.+
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* Used by CActiveApDb.+
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*/+
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class CActiveApDbNotifier : public CActive+
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    {+
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    public:     // construct / destruct+
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+
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        /**+
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        * Constructor.+
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        * @param aDb Active access point database to watch for.+
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        */+
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        CActiveApDbNotifier( CActiveApDb& aDb );+
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+
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        /**+
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        * Destructor.+
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        */+
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        virtual ~CActiveApDbNotifier();+
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+
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    protected:  // from CActive+
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        /**+
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        * Invoked when the outstanding request completes.+
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        */+
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        void RunL() ;+
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+
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        /**+
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        * Implementation of the Cancel protocol;+
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        * cancel any outstanding request.+
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        */+
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        void DoCancel();+
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+
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    public:     // new methods+
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+
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        /**+
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        * Start the notifier. The notification request is automatically+
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        * renewed until it is cancelled, or the database is closed by+
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        * all clients (i.e. released by DBMS).+
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        */+
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        void Start();+
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+
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        /**+
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        * Cancel and close the notifier now.+
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        */+
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        void Stop();+
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+
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    private:+
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        /**+
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        * Request database change notification from the Access Point Engine.+
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        */+
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        void NotifyChange();+
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+
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    private:    // data+
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        CActiveApDb* iActiveDb;     ///< Pointer to the database.+
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                                    ///< Does not owns it.+
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    };+
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+
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#endif+
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+
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// End of File+
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