metadataengine/server/inc/mdsserversession.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 13 Oct 2010 15:02:02 +0300
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/*
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* Copyright (c) 2005-2009 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:  This is Metadata engine server session file*
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*/
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#ifndef __MDESERVERSESSION_H__
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#define __MDESERVERSESSION_H__
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// INCLUDE FILES
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#include <e32base.h>
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#include "mdscommoninternal.h"
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#include "mdcserializationbuffer.h"
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// FORWARD DECLARATIONS
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class CMdSServer;
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class CMdSFindEngine;
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class CMdCSerializationBuffer;
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// CLASS DECLARATION
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/**
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* CServerSession.
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*  An instance of class CServerSession is created for each client.
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*/
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class CMdSServerSession : public CSession2
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    {
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    public: // Constructors and destructors
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        /**
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        * NewL.
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        * Two-phased constructor.
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        * @param aClient The Client's thread.
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        * @param aServer The server.
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        * @return Pointer to created CMdEServerSession object.
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        */
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        static CMdSServerSession* NewL( CMdSServer& aServer );
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        /**
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        * NewLC.
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        * Two-phased constructor.
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        * @param aClient The Client's thread.
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        * @param aServer The server.
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        * @return Pointer to created CMdEServerSession object.
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        */
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        static CMdSServerSession* NewLC( CMdSServer& aServer );
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        /**
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        * ~CMdEServerSession.
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        * Destructor.
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        */
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        virtual ~CMdSServerSession();
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		/**
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		* Cache a notification for an entry;
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		* @param aId notification ID
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		* @param aCompleteCode complete code
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		* @param aData serialized notification data, ownership of data changes 
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		*              even if method leaves
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		*/
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		void CacheNotificationL(TInt aId, TUint32 aCompleteCode, CMdCSerializationBuffer* aData);
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		CMdSServer& GetServer() const;
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	private: // Internal helper methods
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		/**
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		* Check that all queries are complete.
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		*/ 
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		void QueriesCompleteL();
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    protected: // Methods for own use
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        /**
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        * Adds items to database.
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        * @param aMessage Message from client
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        */
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        void AddL( const RMessage2& aMsg );
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		/**
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		* Adds relation to database.
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		* @param aMessage message from client
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		*/
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		void AddRelationDefL(const RMessage2 &aMsg);
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		/**
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		* Adds event to database.
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		* @param aMessage message from client
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		*/		
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		void AddEventDefL(const RMessage2 &aMsg);
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        /**
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        * Removes item from database.
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        * @param aMessage Message from client
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        */
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        void RemoveL( const RMessage2& aMsg );
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        /**
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        * Removes item from database.
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        * @param aMessage Message from client
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        */
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        void RemoveByUriL( const RMessage2& aMsg, TBool aRemoveEvents );
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        /**
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        * Finds item from database.
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        * @param aMessage Message from client
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        */
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        void FindL( const RMessage2& aMsg );
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        /**
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        * Finds item from database.
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        * @param aMessage Message from client
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        */
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        void FindAsyncL( const RMessage2& aMsg );
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        /**
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        * Finds item from database.
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        * @param aMessage Message from client
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        */
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        void FindContinueAsyncL( const RMessage2& aMsg );
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        /**
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        * Finds item from database and completes message.
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        * @param aMessage Message from client
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        */
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        void FindCancel( const RMessage2& aMsg, TInt aError );
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   137
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        /**
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         * Get object's "base" values from database and completes message.
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         * @param aMessage Message from client
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         */
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        void CheckObjectL( const RMessage2& aMsg );
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        /**
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        * Transfers data from server to client.
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        * @param aMessage Message from client
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        */
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        void GetDataL( const RMessage2& aMsg );
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        /**
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        * Cancels the modifying of object and unlocks the object.
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        * @param aMessage Message from client
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        */
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        void CancelObjectL( const RMessage2& aMsg );
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        /**
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        * Commits the modified items to database.
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        * @param aMessage Message from client
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        */
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        void UpdateL( const RMessage2& aMsg );
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        /**
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        * Registers the client for notifications.
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        * @param aMessage Message from client
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        */
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        void RegisterL( const RMessage2& aMsg );
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        /**
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        * Continues registration for an existing client.
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        * @param aMessage Message from client
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        */
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        void ListenL( const RMessage2& aMsg );
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        /**
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        * Unregisters a client for notifications.
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        * @param aMessage Message from client
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        */
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        void UnregisterL( const RMessage2& aMsg );
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        /**
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        * Executes session shutdown.
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        * @param aMessage Message from client
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        */
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        void ShutdownL( const RMessage2& aMsg );
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        /**
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        * Import metadata.
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        * @param aMessage Message from client
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        */
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        void ImportMetadataL( const RMessage2& aMsg );
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        /**
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        * Export metadata
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        * @param aMessage Message from client
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        */
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        void ExportMetadataL( const RMessage2& aMsg );
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        /**
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        * Import schema
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        */
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        void ImportSchemaL( const RMessage2& aMsg );
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        /**
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        * Add memory card media ID
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        * @param aMessage Message from client where first argument is media ID
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        */
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		void AddMemoryCardL(const RMessage2& aMessage);
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        /**
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        * Get the latest memory card's media ID
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        *
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        * @param aMessage Message from client where first argument is returned 
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        *                 Media ID
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		* @leave KErrNotFound Not memory cards exist at all 
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        */
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        void GetMemoryCardL(const RMessage2& aMessage);
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        /**
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         * Check if the memory card's media ID exist in DB
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         * @param aMessage Message from client where first argument is media ID
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         *                 and second is exists boolean value
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         */
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        void CheckMemoryCardL(const RMessage2& aMessage);
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        /**
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         * Set media's media ID, drive and present state to DB.
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         * 
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         * @param aMessage Message from client where first argument is media ID
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         *                 and second is drive and third is present state
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         */
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        void SetMediaL(const RMessage2& aMessage);
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        /**
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   234
         * Check if the media's with given media ID exist in DB and return 
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         * drive and present state.
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         * 
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         * @param aMessage Message from client where first argument is media 
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         * 				   ID, second is media ID, third is drive and fourth 
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         *                 is exists boolean value
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         */
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        void GetMediaL(const RMessage2& aMessage);
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        /**
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         * Get present medias' media IDs and drives.
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         * 
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         * @param aMessage Message from client where first argument is media 
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         * 				   count and second is media infos
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         */
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        void GetPresentMediasL(const RMessage2& aMessage);
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        /**
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         * Sets files object to present state.
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         * @param aMessage Message from client where first argument is media ID 
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         *                 and file count, second argument is URIs, third 
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         *                 argument is TMdSFileInfos and fourth argument is
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         *                 result buffer, which are sent back to client
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         */
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        void SetFilesToPresentL(const RMessage2& aMessage);
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        /**
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        * Sets all file objects which has given media ID to not present state.
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        *
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        * @param aMessage Message from client where first argument is media ID
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        */
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        void SetFilesToNotPresentL(const RMessage2& aMessage);
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        /**
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        * Removes all file objects which has given media ID and are in not 
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        * present.
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        *
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        * @param aMessage Message from client where first argument is media ID
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        */
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        void RemoveFilesNotPresentL(const RMessage2& aMessage);
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        /**
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         * Gets schema version.
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         *
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         * @param aMessage message from client where first argument is major 
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         *                 version number and second is minor version number
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         */
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        void GetSchemaVersionL(const RMessage2& aMessage);
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        /**
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         * Set object to "present" state by GUID.
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         *
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         * @param aMessage message from client where first argument is GUID 
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         *                 high and second is GUID low
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         * 
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		 * @leave KErrNotFound MdE can't find object in "not present" state 
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		 *                     with matching GUID
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         */
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        void SetObjectToPresentByGuidL(const RMessage2& aMessage);
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        /**
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         * Change path of objects, which match to the old path, to the new 
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         * path.
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         * 
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         * @param aMessage message from client where first argument is the old 
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         *                 path and second is the new path
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         */
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        void ChangePathL(const RMessage2& aMessage);
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        /**
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         * Change C-drive media id to MdS_Medias table and update all objects that have the old id.
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         */
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        void ChangeMediaIdL( const RMessage2& aMessage );
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        /**
3
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         * Check media id of internal mass storage to DB and update items accordingly
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         */
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        void CheckMassStorageMediaIdL( const RMessage2& aMessage );
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        /**
0
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         * Set "binary composing to file" pending flag to objects.
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         * 
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         * @param aMessage message from client where first argument is 
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         *                 serialized array of object IDs
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         */
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        void SetPendingL(const RMessage2& aMessage);
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        /**
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         * Reset "binary composing to file" pending flag to objects.
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         * 
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         * @param aMessage message from client where first argument is 
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         *                 serialized array of object IDs
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         */
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        void ResetPendingL(const RMessage2& aMessage);        
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        /**
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		 * Get count of objects with "binary composing to file" pending flag
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		 *
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         * @param aMessage message from client where first argument is 
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         *                 serialized object def ID
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         * 
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		 * @return if >= 0, object count is returned, otherwise error code is 
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		 *         returned
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		 */
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   338
		TInt GetPendingCountL(const RMessage2& aMessage);
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   339
		
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		/**
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		 * Get IDs from objects with "binary composing to file" pending flag
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		 *
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         * @param aMessage message from client where first argument is 
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         *                 serialized object def ID and second argument is
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   345
         *                 returned object ID count and third is serialized 
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         *                 array for object IDs
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   347
		 *
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   348
		 * @return if > 0, buffer is not large enough for objects ID from DB,
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		 *         otherwise error code is returned
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diff changeset
   350
		 */
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parents:
diff changeset
   351
		TInt GetPendingL(const RMessage2& aMessage);
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parents:
diff changeset
   352
        
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parents:
diff changeset
   353
    public: // Functions from base classes
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   354
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parents:
diff changeset
   355
        /**
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parents:
diff changeset
   356
         * From CSession2, ServiceL.
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   357
         * Service request from client.
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   358
         * @param aMessage Message from client
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parents:
diff changeset
   359
         *                 (containing requested operation and any data).
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parents:
diff changeset
   360
         */
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parents:
diff changeset
   361
        void ServiceL( const RMessage2& aMessage );
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parents:
diff changeset
   362
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parents:
diff changeset
   363
        /**
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   364
         * SizeToRemoteL.
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parents:
diff changeset
   365
         * Writes size to slave process.
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parents:
diff changeset
   366
         * @param aMessage Message from client
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parents:
diff changeset
   367
         * @param aRemote, pointer to client's variable.
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parents:
diff changeset
   368
         * @param aHierarchy hierarchy that's size is to be transmitted
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parents:
diff changeset
   369
         */
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parents:
diff changeset
   370
        static void SizeToRemoteL( const RMessage2& aMsg, TInt aMessageSlot, TInt aSize);
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parents:
diff changeset
   371
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parents:
diff changeset
   372
    private: // Constructors and destructors
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parents:
diff changeset
   373
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parents:
diff changeset
   374
        /**
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parents:
diff changeset
   375
        * CMdSServerSession.
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parents:
diff changeset
   376
        * C++ default constructor.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
        * @param aClient The Client's thread.
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parents:
diff changeset
   378
        * @param aServer The server.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
        */
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parents:
diff changeset
   380
        CMdSServerSession( CMdSServer& aServer );
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parents:
diff changeset
   381
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parents:
diff changeset
   382
        /**
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   383
        * ConstructL.
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
        * 2nd phase constructor.
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
        */
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   386
        void ConstructL();
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   387
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parents:
diff changeset
   388
        /**
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   389
        * Internal function to handle service request from client.
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parents:
diff changeset
   390
        * @param aMessage Message from client
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   391
        *                 (containing requested operation and any data).
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parents:
diff changeset
   392
        */
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
        void ServiceFunctionL( const RMessage2& aMessage );        
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   394
        
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   395
        CMdCSerializationBuffer* CombineBuffersL(
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   396
        		CMdCSerializationBuffer& aLeftBuffer, CMdCSerializationBuffer& aRightBuffer );
27
4a4892eec172 Revision: 201019
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parents: 17
diff changeset
   397
        
4a4892eec172 Revision: 201019
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parents: 17
diff changeset
   398
        CMdCSerializationBuffer* CombineUriNotificationsBuffersL(
4a4892eec172 Revision: 201019
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 17
diff changeset
   399
                CMdCSerializationBuffer& aLeftBuffer, CMdCSerializationBuffer& aRightBuffer );
0
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
        CMdCSerializationBuffer* CombineItemBuffersL(
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   402
        		CMdCSerializationBuffer& aLeftBuffer, CMdCSerializationBuffer& aRightBuffer );
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   403
        
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   404
    private: // Data
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   406
        /**
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   407
        * iServer, reference to the server.
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
        */
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
        CMdSServer& iServer;
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
        
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   411
       /**
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   412
        * Find engine
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
        */
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
        RPointerArray<CMdSFindEngine> iFindEngines;
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
	    class CNotificationCacheItem : public CBase
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
	    	{
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
	    	public:
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
	    		CNotificationCacheItem( TInt aId, TUint32 aCode, 
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
	    			CMdCSerializationBuffer* aData ) : 
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
		    		iId( aId ), 
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
		    		iCode( aCode ),
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
		    		iData( aData )
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
		    		{
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
		    		}
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
		    	
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
		    	~CNotificationCacheItem()
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
			    	{
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
			    	delete iData;
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
			    	}
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
	    	public:
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
		    	const TInt iId;
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
		    	const TUint32 iCode;
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
		    	CMdCSerializationBuffer* iData;
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
	    	};
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
       /**
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
        * Cache of notification events
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
        */        
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
    	RPointerArray<CNotificationCacheItem> iNotificationCache;
17
50de4d668bb6 Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 3
diff changeset
   442
    	
50de4d668bb6 Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 3
diff changeset
   443
	private: // Compare methods
50de4d668bb6 Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 3
diff changeset
   444
    	
50de4d668bb6 Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 3
diff changeset
   445
        static TInt ComparePropertiesCacheItem( const CNotificationCacheItem& aFirst, const CNotificationCacheItem& aSecond );
0
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
    };
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
#endif // __MDESERVERSESSION_H__