os/persistentdata/featuremgmt/featuremgr/src/featdiscovery/featdiscoveryimpl.h
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
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/*
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* Copyright (c) 2007-2009 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:
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*
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*/
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#ifndef FEATDISCOVERYIMPL_H 
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#define FEATDISCOVERYIMPL_H 
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//  INCLUDES
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#include <e32base.h>
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#include "featurecontrol.h"
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class CFeatureDiscoveryImpl : public CBase
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    {
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    public:
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	    /**
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	    * This is a two-phase constructor method that is used to create
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	    * a new instance of the CFeatureDiscoveryImpl class.
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	    *
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	    * @return a pointer to a new instance of the CFeatureDiscoveryImpl class.
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	    *
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	    * @leave Any One of the Symbian OS system-wide error codes
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	    */
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		static CFeatureDiscoveryImpl* NewL();
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	    /**
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	    * Destructor.
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	    */
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		virtual ~CFeatureDiscoveryImpl();
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		/**
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	    * Static way to fetch information whether a certain feature is 
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	    * supported in the current envinronment. There is no need to create
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	    * an instance of the class when using this method.
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	    *
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	    * @param aFeature is the feature UID of the feature that is queried.
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	    * @return TBool indicating whether the feature is supported (ETrue)
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	    * or not (EFalse). If the feature does not exist, the return value is 
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	    * EFalse.
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	    *
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	    * @leave Any One of the Symbian OS system-wide error codes
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	    */
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	    static TBool IsFeatureSupportedL(TUid aFeature);
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		/**
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	    * Dynamic way to fetch information whether a certain feature is 
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 		* supported in the current environment. Before calling the method 
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	    * an instance of the CFeatureDiscoveryImpl class need to be created by 
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	    * using one of the factory methods, NewL() or NewLC(). The created 
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	    * instance must be deleted after use.
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	    *
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	    * @param aFeature is the feature UID of the feature that is queried.
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	    * @return TBool indicating whether the feature is supported (ETrue)
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	    * or not (EFalse). If the feature does not exist, the return value is 
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	    * EFalse.
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	    */
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		TBool IsSupported(TUid aFeature);
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		/**
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		* Static way to fetch information whether set of features are 
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		* supported in the current envinronment. There is no need to create
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		* an instance of the class when using this method.
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		*
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		* @param aFeatures is the wrapper class for feature array queried.
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		* @leave Any One of the Symbian OS system-wide error codes
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		*/
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		static void FeaturesSupportedL( TFeatureSet& aFeatures );
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		/**
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	    * Dynamic way to fetch information whether set of features are 
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 		* supported in the current environment. Before calling the method 
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	    * an instance of the CFeatureDiscovery class need to be created by 
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	    * using one of the factory methods, NewL() or NewLC(). The created 
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	    * instance must be deleted after use.
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	    *	    
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	    * @param aFeatures is the wrapper class for feature array queried.
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	    * @return KErrNone if status query succeeded.
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	    *         Otherwise one of the Symbian OS error codes
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	    */
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		TInt FeaturesSupported( TFeatureSet& aFeatures );
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    private:
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	    /**
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	    * C++ default constructor.
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	    */
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			CFeatureDiscoveryImpl();
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	    /**
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	    * By default Symbian OS constructor is private.
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	    */
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	    void ConstructL();
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    private:
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		// Feature Manager server client 
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		RFeatureControl iFeatControl;
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    } ;
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#endif  // FEATDISCOVERYIMPL_H 
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// EOF