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94 lines
2.2 KiB
94 lines
2.2 KiB
/*++
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Copyright (C) 1999-2000 Microsoft Corporation
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Module Name:
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WBEMDNF.H
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Abstract:
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WBEM Evaluation Tree
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History:
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--*/
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#ifndef __WBEM_DNF__H_
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#define __WBEM_DNF__H_
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#include "esscpol.h"
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#include <parmdefs.h>
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#include <ql.h>
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#include <wbemcomn.h>
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#include <sync.h>
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#include <newnew.h>
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class CTokenFilter
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{
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public:
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CTokenFilter(){}
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virtual ~CTokenFilter(){}
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virtual BOOL IsRelevant(QL_LEVEL_1_TOKEN* pToken) = 0;
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};
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class CConjunction
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{
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protected:
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CUniquePointerArray<QL_LEVEL_1_TOKEN> m_apTokens;
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static CReuseMemoryManager mstatic_Manager;
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public:
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CConjunction();
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CConjunction(QL_LEVEL_1_TOKEN& Token, BOOL bNegate);
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CConjunction(CConjunction& Other);
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CConjunction(CConjunction& Other1, CConjunction& Other2);
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long GetNumTokens() {return m_apTokens.GetSize();}
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INTERNAL QL_LEVEL_1_TOKEN* GetTokenAt(int nIndex)
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{return m_apTokens[nIndex];}
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BOOL AddToken(ACQUIRE QL_LEVEL_1_TOKEN* pNew)
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{ return m_apTokens.Add(pNew); }
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void Sort();
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HRESULT GetNecessaryProjection( CTokenFilter* pFilter,
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CConjunction** ppResult);
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static int NegateOperator(int nOperator);
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void *operator new(size_t nBlock);
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void operator delete(void* p);
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};
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class CDNFExpression
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{
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protected:
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CUniquePointerArray<CConjunction> m_apTerms;
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protected:
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BOOL CreateFromToken(QL_LEVEL_1_TOKEN& Token, BOOL bNegate);
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HRESULT CreateOr(CDNFExpression& Arg1, CDNFExpression& Arg2,
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long& lMaxTokens);
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HRESULT CreateAnd(CDNFExpression& Arg1, CDNFExpression& Arg2,
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long& lMaxTokens);
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public:
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long GetNumTerms() {return m_apTerms.GetSize();}
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INTERNAL CConjunction* GetTermAt(int nIndex)
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{return m_apTerms[nIndex];}
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void AddTerm(ACQUIRE CConjunction* pNew)
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{m_apTerms.Add(pNew);}
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HRESULT CreateFromTokens(QL_LEVEL_1_TOKEN*& pLastToken, BOOL bNegate,
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long& lMaxTokens);
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void Sort();
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public:
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HRESULT GetNecessaryProjection(CTokenFilter* pFilter,
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CDNFExpression** ppResult);
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};
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#endif
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