/*

* Copyright (c) 2006 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:   Contains CCatalogsInterfaceIdentifier class

*

*/

#ifndef CATALOGS_INTERFACE_IDENTIFIER_H

#define CATALOGS_INTERFACE_IDENTIFIER_H

#include <e32base.h>

class MCatalogsBase;

class CCatalogsInterfaceBase;

class CCatalogsInterfaceIdentifier: public CBase

    {

public:

    /**

     * @param aInterfaceObject Ownership is not transferred.

     */

    static CCatalogsInterfaceIdentifier* NewL( TAny* aInterfaceObject,

                                               CCatalogsInterfaceBase* aInterfaceBaseObject,

                                               TInt aInterfaceId );

    /**

     * @param aInterfaceObject Ownership is not transferred.

     */

    static CCatalogsInterfaceIdentifier* NewLC( TAny* aInterfaceObject,

                                                CCatalogsInterfaceBase* aInterfaceBaseObject,

                                                TInt aInterfaceId );

    ~CCatalogsInterfaceIdentifier();

    /**

     * This object does not own the returned object. So,

     * ownership is not transferred directly. 

     * But, Release may be called

     * to decrease the ref counter of the object.

     */

    const TAny* InterfaceObject() const;

    /**

     * This object does not own the returned object. So,

     * ownership is not transferred directly. 

     * But, Release may be called

     * to decrease the ref counter of the object.

     */

    const CCatalogsInterfaceBase* InterfaceBaseObject() const;   

    TInt InterfaceId() const;

protected:

    CCatalogsInterfaceIdentifier( TAny* aInterfaceObject,

                                  CCatalogsInterfaceBase* aInterfaceBaseObject,  

                                  TInt aInterfaceId );

    void ConstructL();

private:

    // Prevent

    CCatalogsInterfaceIdentifier( const CCatalogsInterfaceIdentifier& aObject );

    CCatalogsInterfaceIdentifier& operator =( const CCatalogsInterfaceIdentifier& aObject );

private: // data

    // Does not own the object

    TAny* iInterfaceObject;

    CCatalogsInterfaceBase* iInterfaceBaseObject;

    TInt iInterfaceId;

    };

#endif // CATALOGS_INTERFACE_BASE_H