/*

* 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: Base class for subsessions.

*

*

*/

#ifndef CPOSLMSUBSESSIONBASE_H

#define CPOSLMSUBSESSIONBASE_H

// INCLUDE FILES

#include <e32base.h>

// FORWARD DECLARATIONS

class CPosLmServer;

/**

* Base class for subsessions.

*/

class CPosLmSubsessionBase : public CObject

    {

    public:  // Data types

        /**

        *  Specifies the type of a subsession class.

        */

        enum TSubsessionType

            {

            EPosLocalAccessSubsession = 0,

            /**< subclass CPosLmLocalAccessSubsession */

            EPosEventListenerSubsession,

            /**< subclass CPosLmEventListenerSubsession */

            EPosLocalDbManProviderSubsession

            /**< subclass CPosLmLocalDbManProviderSubsession */

            };

    public: // Constructors and destructor

        /**

        * Destructor.

        */

        virtual ~CPosLmSubsessionBase();

    public: // New functions

        /**

        * Returns the subsession type.

        *

        * @returns The subsession type.

        */

        TSubsessionType SubsessionType() const;

        /**

        * Handles the servicing of client requests to the server.

        *

        * @param aMessage The message containing the client request.

        */

        virtual void ServiceL(

        /* IN */        const RMessage2& aMessage

        ) = 0;

    protected:

        /**

        * C++ default constructor.

        *

        * @param aSubsessionType Subsession type.

        * @param aLmServer Reference to the landmark server.

        */

        CPosLmSubsessionBase(

        /* IN */ TSubsessionType aSubsessionType,

        /* IN */ CPosLmServer* aLmServer);

        /**

        * Retrieves the landmarks server instance.

        *

        * @return A pointer to the landmarks server object.

        */

        CPosLmServer* Server();

    private:    // Data

        TSubsessionType iSubsessionType;

        CPosLmServer*   iLmServer;

    };

#endif //CPOSLMSUBSESSIONBASE_H

// End of File