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/*
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Class definition of Trigger Key
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*
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*/
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#ifndef T_LBTTRIGGERKEY_H
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#define T_LBTTRIGGERKEY_H
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#include <s32btree.h>
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/**
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* TTriggerKey is a class to used to create and order keys to be used for
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* entries in the Btree
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*/
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class TLbtTriggerKey : public MBtreeKey
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{
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public: // From Base Class MBtreeKey
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/**
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* Retrieves the key value for a particular entry
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*/
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virtual const TAny* Key( const TAny* anEntry ) const;
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/**
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* Orders two keys
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*/
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virtual TInt Compare( const TAny *aLeft, const TAny *aRight ) const;
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/**
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* Determines the midpoint between two keys
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*/
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virtual void Between( const TAny *aLeft, const TAny *aRight,
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TBtreePivot &aPivot ) const;
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};
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#endif // T_LBTTRIGGERKEY_H
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