inc/MPEngContactListTransactionObserver2.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 18 Jan 2010 20:12:18 +0200
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/*
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* Copyright (c) 2004 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:  Observer interface to listen contact list transaction completion.
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*
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*/
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#ifndef __MPENGCONTACTLISTTRANSACTIONOBSERVER2_H
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#define __MPENGCONTACTLISTTRANSACTIONOBSERVER2_H
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//  INCLUDES
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#include <E32Std.h>
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// FORWARD DECLARATIONS
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class CPEngContactListTransaction2;
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class MPEngTransactionStatus2;
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// CLASS DECLARATION
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/**
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 * Observer interface to receive presence contact list
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 * transaction completion events.
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 *
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 * @since 3.0
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 */
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class MPEngContactListTransactionObserver2
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    {
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    public: //Observer methods
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        /**
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         * Transaction complete handler.
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         *
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         * Called by CPEngContactListTransaction2 to handle contact list
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         * transaction complete. If this method leaves, error code is
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         * reported back to HandleContactListTransactionError().
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         *
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         * @since 3.0
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         * @param aStatus Transaction status container holding result from
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         *        transaction. Container ownership remains on the notfier.
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         * @param aTransaction The transaction object where notification
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         *        is coming from. No ownership transferred.
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         * @param aTransactionOperation ID of the completed transaction.
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         *        Transaction operation IDs are listed in
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         *        PEngPresenceEngineConsts2.h TPEngTransactionOperation
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         *        enumeration. Client can use transaction ID to figure
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         *        out what operation completed.
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         */
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        virtual void HandleContactListTransactionCompleteL(
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            MPEngTransactionStatus2& aStatus,
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            CPEngContactListTransaction2& aTransaction,
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            TInt aTransactionOperation ) = 0;
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        /**
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         * Failure handler.
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         *
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         * Called to handle leave errors from
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         * HandleContactListTransactionCompleteL().
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         *
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         * @since 3.0
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         * @param aError The leave error from transaction complete handling.
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         * @param aTransaction The transaction object which event
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         *        handling failed.
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         * @param aTransactionOperation ID of the transaction operation.
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         *        which event handling failed. Transaction operation
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         *        IDs are listed in PEngPresenceEngineConsts2.h
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         *        TPEngTransactionOperation enumeration.
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         */
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        virtual void HandleContactListTransactionError(
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            TInt aError,
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            CPEngContactListTransaction2& aTransaction,
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            TInt aTransactionOperation ) = 0;
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    private: //Extensions
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        /**
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         * Reserved virtual table slots for future use.
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         * Do not implement this.
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         *
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         * @since 3.0
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         */
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        virtual TInt ContactListTransactionReserved() {
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            return KErrNotSupported;
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            }
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    protected:  //Destructor
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        /**
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         * Protected destructor.
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         * Observers can't be destroyed via this interface.
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         */
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        virtual ~MPEngContactListTransactionObserver2() { }
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    };
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#endif //__MPENGCONTACTLISTTRANSACTIONOBSERVER2_H
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//End of file
094583676ce7 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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