ncdengine/provider/client/inc/ncdoperationimpl.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:51:10 +0200
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/*
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* Copyright (c) 2006 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:   Contains MCatalogsBase implementation base class definition
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*
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*/
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#ifndef C_NCDOPERATION_H
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#define C_NCDOPERATION_H
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#include <e32cmn.h>
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#include <e32base.h>
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#include "catalogsbase.h"
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#include "ncdoperation.h"
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#include "ncdbaseoperationproxy.h"
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template< class T1 >
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class CNcdOperation : public CNcdBaseOperationProxy, public T1
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    {
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public:
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    /**
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     * @see MNcdOperation::OperationStateL()
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     */
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    MNcdOperation::TState OperationStateL() const
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        {
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        return DoOperationStateL();
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        }    
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    /**
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     * @see MNcdOperation::StartOperationL()
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     */
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    void StartOperationL()
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        {
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        DoStartOperationL();
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        }
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    /**
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     * @see MNcdOperation::CancelOperation()
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     */
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    void CancelOperation()
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        {
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        DoCancelOperation();
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        }
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    /**
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     * @see MNcdOperation::Progress()
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     */
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    TNcdProgress Progress() const
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        {
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        return DoProgress();
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        }
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    /**
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     * @see MNcdOperation::CompleteQuery()
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     */    
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    void CompleteQueryL( MNcdQuery& aQuery )
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        {
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        DoCompleteQueryL( aQuery );
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        }
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    /**
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     * @see MNcdOperation::Node()
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     */
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    MNcdNode* Node()
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        {
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        return DoNode();
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        }
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protected:
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    /**
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     * ConstructorL
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     *
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     * @note CNcdBaseOperationProxy::ConstructL also needs to be called when the child classes
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     * initialize themselves in their own ConstructL functions.
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     *
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     * @see CNcdBaseOperationProxy::ConstructL
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     */ 
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    CNcdOperation( MNcdClientLocalizer* aLocalizer ) : 
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        CNcdBaseOperationProxy( aLocalizer ) 
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        {
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        }
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    const TAny* QueryInterfaceL( TInt aInterfaceId ) const
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        {
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        const TAny* result = NULL;
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        switch( aInterfaceId )
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            {
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            case T1::KInterfaceUid:             result = static_cast< const T1* >( this ); break;
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            case MNcdOperation::KInterfaceUid:  result = static_cast< const MNcdOperation* >( this ); break;
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            case MCatalogsBase::KInterfaceUid:  result = static_cast< const MCatalogsBase* >( this ); break;                        
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            default: break;
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            }
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        if( result != NULL )
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            {
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            AddRef();
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            }
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        return result;
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        }
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    };
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#endif // C_NCDOPERATION_H