/*

* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: Declaration of Active object that compacts database.

*

*

*/

#ifndef CPOSLMACTIVECOMPACTER_H

#define CPOSLMACTIVECOMPACTER_H

//  INCLUDES

#include <e32base.h>

#include <epos_cposlmlocaldbaccess.h>

// CONSTANTS

// FORWARD DECLARATIONS

class CPosLmLocalAccessSubsession;

class CPosLmCompactDatabase;

// CLASS DECLARATION

/**

* Active object that compacts database.

*/

class CPosLmActiveCompacter : public CActive

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        *

        * @param aOwner The owner of the database lock.

        * @param aDb The database to compact.

        */

        static CPosLmActiveCompacter* NewL(

        /* IN */        CPosLmLocalAccessSubsession& aOwner,

        /* IN */        CPosLmLocalDbAccess& aDb

        );

        /**

        * Destructor.

        */

        virtual ~CPosLmActiveCompacter();

    public: // From base classes

        /**

        * From CActive.

        *

        */

        void DoCancel();

        /**

        * From CActive.

        *

        */

        void RunL();

        /**

        * From CActive.

        *

        * @param aError The leave code.

        * @return Returns KErrNone.

        */

        TInt RunError(

        /* IN */    TInt aError

        );

    private:

        /**

        * C++ default constructor.

        *

        * @param aDb The database to compact.

        */

        CPosLmActiveCompacter(

        /* IN */        CPosLmLocalAccessSubsession& aOwner

        );

        /**

        * By default Symbian 2nd phase constructor is private.

        *

        * @param aDb The database to compact.

        */

        void ConstructL(

        /* IN */        CPosLmLocalDbAccess& aDb

        );

        /**

        * Completes this active object after each incremental step.

        */

        void CompleteSelf();

    private:    // Data

        CPosLmLocalAccessSubsession& iOwner;

        CPosLmCompactDatabase* iCompactDb;

    };

#endif      // CPOSLMACTIVECOMPACTER_H

// End of File