71 lines
1.7 KiB
C++
71 lines
1.7 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: ocursor.hxx
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//
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// Contents: Occurrence Cursor Class
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//
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// Classes: COccCursor
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//
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// History: 19-Feb-92 AmyA Created.
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include <cursor.hxx>
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const RANK_MULTIPLIER = 16; // Rank is scaled by this number
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//+---------------------------------------------------------------------------
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//
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// Class: COccCursor
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//
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// Purpose: The root class for all occurrence cursors and CKeyCursor
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//
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// Interface:
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//
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// History: 19-Feb-92 AmyA Created.
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// 14-Apr-92 AmyA Added Rank().
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// 23-Jun-94 SitaramR Added _widMax and MaxWorkId().
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//
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//----------------------------------------------------------------------------
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class COccCursor : public CCursor
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{
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public:
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COccCursor ( INDEXID iid, WORKID widMax )
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: CCursor(iid), _widMax(widMax) {}
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COccCursor (WORKID widMax) : _widMax(widMax) {}
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COccCursor () : _widMax(0) {}
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virtual OCCURRENCE Occurrence() = 0;
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virtual OCCURRENCE NextOccurrence() = 0;
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virtual ULONG OccurrenceCount() = 0;
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virtual OCCURRENCE MaxOccurrence() = 0;
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virtual LONG Rank() { return MAX_QUERY_RANK; }
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virtual BOOL IsEmpty() { return Occurrence() == OCC_INVALID; }
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virtual WORKID MaxWorkId() { return _widMax; }
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#ifdef CIEXTMODE
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void CiExtDump(void *ciExtSelf);
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#endif
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protected:
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WORKID _widMax;
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};
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