/*

* Copyright (c) 2002 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:  Presence Server abstract interface

*

*/

#ifndef MPENGSERVER_H

#define MPENGSERVER_H

//  INCLUDES

#include <e32def.h>

#include <bamdesca.h>

#include "TPEngServerMessages.h"

// FORWARD DECLARATIONS

class CPEngCSPSessManager;

class CPEngSessionSlotId;

class CPEngSubSession;

// CLASS DECLARATION

/**

 *  Presence Server abstract interface

 *

 *  @lib PEngServer2

 *  @since 3.0

 */

class MPEngServer

    {

    public: // New functions used by the server session

        /**

         *  Inform server about created session,

         *  Access count is increased

         *

         *  @since 3.0

         */

        virtual void SessionCreated() = 0;

        /**

         *  Inform server about closing of the session

         *  Access count is decreased

         *

         *  @since 3.0

         */

        virtual void SessionDied() = 0;

        /**

         *  Add subsession to the container

         *

         *  @since 3.0

         *  @param aSubSession sub session instance

         */

        virtual void AddSubSessionL( CPEngSubSession& aSubSession ) = 0;

        /**

         *  Remove subsession from the container

         *

         *  @since 3.0

         *  @param aSubSession subsession instance

         */

        virtual void RemoveSubSessionL( CPEngSubSession& aSubSession ) = 0;

    public: // New functions used by the server Sub-Session

        /**

         *  Session Manager

         *	If session manager is not active it is created

         *

         *  @since 3.0

         *  @param aSessionId session slot Id

         *  @return session Manager

         */

        virtual CPEngCSPSessManager* CSPSessionManagerLC(

            CPEngSessionSlotId& aSessionId ) = 0;

    public:	// New functions used by the Session Manager

        /**

         *  Remove Session Manager from the server

         *

         *  @since 3.0

         *  @param aManager session manager to be removed

         */

        virtual void RemoveCSPSessManager(

            CPEngCSPSessManager* aManager ) = 0;

        /**

         *  Session is opened

         *  Informs server that session slot is opened

         *  Plugin server is informed about change is needed

         *  @since 3.0

         */

        virtual void SessionOpened() = 0;

        /**

         *  Session is closed

         *  Informs server that session slot is closed

         *  Plugin server is informed about change is needed

         *  @since 3.0

         */

        virtual void SessionClosed() = 0;

    protected:  //Destructor

        /**

          * Virtual inline destructor.

          *

          * Server cannot be destroyed through this interface

          * destroyed using this interface.

          */

        virtual ~MPEngServer() {};

    };

#endif      // MPENGSERVER_H

// End of File