author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 08:46:30 +0200 | |
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/* |
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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: The MCoreDbSyncRecoveryHandler provides means to restore the database |
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* synchronisation between Speech Recognition DB (SR DB) and VAS DB. |
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* |
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* Training a new name saves stuff to SR DB. The SaveTag() call saves |
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* stuff to VAS DB. If the client decides after training not to save, or |
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* battery is removed between training the name and saving it, then the |
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* two databases are out of sync. |
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* These functions add to VAS DB enough information for proper rollback. |
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* If they are called before changing SR DB, the databases will always |
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* stay in sync. |
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* |
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* |
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*/ |
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#ifndef MNSSCORERECOVERYHANDLER_H |
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#define MNSSCORERECOVERYHANDLER_H |
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class CNssTag; |
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/** |
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* The MNssCoreSrsDBEventHandler provides interface to handle events |
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* from Save and Delete utterance data into SRS. |
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* |
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* @lib NssVasApi.lib |
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* @since 2.0 |
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*/ |
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class MNssCoreSyncRecoveryHandler |
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{ |
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public: |
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/** |
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* Recovery functions. |
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* These are called, before changing the speech recognition database. |
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* They save enough information to clean up and fall back, if: |
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* (a) The client changes SR DB, but doesn't save the tag. |
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* (b) A crash happens during operation. |
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*/ |
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/** |
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* Callback |
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* @return None |
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*/ |
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virtual void PrepareRecoveryInTraining( const RPointerArray<CNssSpeechItem>& anArray, |
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const CNssContext* aContext )=0; |
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/** |
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* Callback |
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* @return None |
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*/ |
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virtual void PrepareRecoveryInChanging(const RPointerArray<CNssSpeechItem>& anArray)=0; |
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/** |
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* Callback |
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* @return None |
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*/ |
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virtual void PrepareRecoveryInDeleting(const RPointerArray<CNssSpeechItem>& anArray)=0; |
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}; |
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#endif |