/*

* Copyright (c) 2007-2008 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:    

*

*/

#ifndef C_HNMDUNDEFKEY_H

#define C_HNMDUNDEFKEY_H

#include <e32base.h>

#include "hnmdbasekey.h"

/**

 * Defines key which has undefined type.

 *

 * @lib hierarchynavigatorengine

 * @since S60 v5.0

 * @ingroup group_hnutilities

 */

NONSHARABLE_CLASS( CHnMdUndefKey ) : public CHnMdBaseKey

    {

    friend class HnMdKeyFactory;

public:

    /**

     * Standard factory function.

     * 

     * @return Fully constructed object.

     */

    static CHnMdUndefKey* NewL();

    /**

     * Standard factory function.

     * 

     * @return Fully constructed object.

     */

    static CHnMdUndefKey* NewLC();

    /**

     * Standard factory method.

     * 

     * @param aKey Reference key.

     * @return Fully constructed object.

     */

    static CHnMdUndefKey* NewL( const CHnMdUndefKey* aKey );    

    /**

     * Instance copy method.

     *

     * since S60 v5.0

     * @param aKey Reference key.

     * @return Fully constructed object.

     */

    static CHnMdUndefKey* NewLC( const CHnMdUndefKey* aKey );    

    /**

     * Instance copy method.

     *

     * since S60 v5.0

     * @return Fully constructed object.

     */  

    virtual CHnMdBaseKey* CopyLC();

    /**

     * Standard destructor.

     */

    virtual ~CHnMdUndefKey();

protected:

    /**

     * Standard constructor.

     * 

     * @since S60 v5.0

     */

    CHnMdUndefKey();

    /**

     * Symbian constructor for performing 2nd stage construction.

     * 

     * @since S60 v5.0

     */

    void ConstructL();    

    /**

     * Symbian constructor for performing 2nd stage construction.

     * 

     * @since S60 v5.0

     * @param aKey Reference key.

     */

    void ConstructL( const CHnMdUndefKey* aKey );

    };

#endif // C_HNMDUNDEFKEY_H