67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1991 - 1992.
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//
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// File: FRESHCUR.HXX
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//
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// Contents: Fresh cursor
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//
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// Classes: CFreshCursor
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//
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// History: 16-May-91 BartoszM Created.
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include "indsnap.hxx"
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//+---------------------------------------------------------------------------
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//
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// Class: CFreshCursor
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//
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// Purpose: Use the fresh list to prune out stale data
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//
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// History: 16-May-91 BartoszM Created.
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// 30-Sep-91 BartoszM Simplified
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// 28-Feb-92 AmyA Added HitCount()
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// 14-Apr-92 AmyA Added Rank()
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// 28-Arp-92 BartoszM Use Index Array
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// 28-Sep-94 SrikantS Reversed the ordering of
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// _indSnap and _cur.
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//
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//----------------------------------------------------------------------------
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class CFreshCursor : public CCursor
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{
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public:
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CFreshCursor ( XCursor & cur, CIndexSnapshot& indSnap );
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virtual ~CFreshCursor() {}
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WORKID WorkId();
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WORKID NextWorkId();
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ULONG WorkIdCount();
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ULONG HitCount();
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LONG Rank();
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ULONG GetRankVector( LONG * plVector, ULONG cElements );
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void RatioFinished ( ULONG& denom, ULONG& num );
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private:
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void LoadWorkId();
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WORKID _wid;
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CIndexSnapshot _indSnap;
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XCursor _cur;
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};
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