52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Copyright (C) 1991-1992, Microsoft Corporation.
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//
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// File: QUERBLE.HXX
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//
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// Contents: Queriable Object
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//
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// Classes: CQueriable
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//
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// History: 14-Jul-92 MikeHew Created
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//
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//----------------------------------------------------------------------------
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#pragma once
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class CKey;
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class CKeyArray;
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//+---------------------------------------------------------------------------
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//
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// Class: CQueriable
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//
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// Purpose: Pure virtual class for all queriable objects
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//
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// Interface: QueryCursor - Obtain a cursor
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//
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// History: 14-Jul-92 MikeHew Created
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//
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// Notes: Inherited by CIndex and applications which highlight
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// query hits.
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//
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//----------------------------------------------------------------------------
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class CQueriable
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{
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public:
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virtual COccCursor * QueryCursor( const CKey * pkey,
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BOOL isRange,
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ULONG & cMaxNodes ) = 0;
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virtual COccCursor * QueryRangeCursor( const CKey * pkeyBegin,
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const CKey * pkeyEnd,
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ULONG & cMaxNodes ) = 0;
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virtual COccCursor * QuerySynCursor( CKeyArray & keyArr,
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BOOL isRange,
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ULONG & cMaxNodes ) = 0;
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};
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