/*

* 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:  Class definition of Trigger Key

*

*/

#ifndef T_LBTTRIGGERCLIENTSIDKEY_H

#define T_LBTTRIGGERCLIENTSIDKEY_H

#include <s32btree.h>

/**

 * TTriggerKey is a class to used to create and order keys to be used for 

 * entries in the Btree

 */

class TLbtTriggerClientSIDKey : public MBtreeKey

    {

public:     // From Base Class MBtreeKey

    /**

     * Retrieves the key value for a particular entry

     */

    virtual const TAny* Key( const TAny* anEntry ) const;

    /**

     * Orders two keys 

     */

    virtual TInt Compare( const TAny *aLeft, const TAny *aRight ) const;

    /**

     * Determines the midpoint between two keys

     */

    virtual void Between( const TAny *aLeft, const TAny *aRight, 

                                            TBtreePivot &aPivot ) const;

    };

#endif  // T_LBTTRIGGERCLIENTSIDKEY_H