Source code of Windows XP (NT5)
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// IDXOBR.H: Definition of CITIndexObjBridge
#ifndef __IDXOBR_H__
#define __IDXOBR_H__
#include "verinfo.h"
#include <itwbrk.h>
#include <itstem.h>
// REVIEW (billa): EXBRKPM needs to get moved to mvsearch.h, where PARSE_PARMS
// is defined. A pointer to this structure will replace the lpfnTable member
// of PARSE_PARMS.
class CITIndexObjBridge :
public IWordSink,
public IStemSink
{
public:
CITIndexObjBridge();
virtual ~CITIndexObjBridge();
// IUnknown methods
STDMETHOD(QueryInterface)(REFIID riid, LPVOID *ppvObj);
STDMETHOD_(ULONG, AddRef)(void);
STDMETHOD_(ULONG, Release)(void);
// IWordSink methods
STDMETHOD(PutWord)(WCHAR const *pwcInBuf, ULONG cwc,
ULONG cwcSrcLen, ULONG cwcSrcPos);
STDMETHOD(PutAltWord)(WCHAR const *pwcInBuf, ULONG cwc,
ULONG cwcSrcLen, ULONG cwcSrcPos);
STDMETHOD(StartAltPhrase)(void);
STDMETHOD(EndAltPhrase)(void);
STDMETHOD(PutBreak)(WORDREP_BREAK_TYPE breakType);
// IStemSink methods
STDMETHOD(PutWord)(WCHAR const *pwcInBuf, ULONG cwc);
STDMETHOD(PutAltWord)(WCHAR const *pwcInBuf, ULONG cwc);
// Public methods not derived from IUnknown.
STDMETHOD(SetWordBreaker)(PIWBRK piwbrk);
STDMETHOD(BreakText)(PEXBRKPM pexbrkpm);
STDMETHOD(LookupStopWord)(LPBYTE lpbStopWord);
STDMETHOD(StemWord)(LPBYTE lpbStemWord, LPBYTE lpbRawWord);
STDMETHOD(AddQueryResultTerm)(LPBYTE lpbTermHit, LPVOID *ppvTermHit);
STDMETHOD(AdjustQueryResultTerms)(void);
private:
// Private methods
HRESULT ReallocBuffer(HGLOBAL *phmemBuf, DWORD *cbBufCur, DWORD cbBufNew);
// Private Data members
ULONG m_cRef;
PIWBRK m_piwbrk; // pointer to IWordBreaker
PIWBRKC m_piwbrkc; // pointer to IWordBreakerConfig
PISTEM m_pistem; // pointer to IStemmer
PIITSTWDL m_piitstwdl; // pointer to IITStopWordList
DWORD m_dwCodePageID; // from breaker to do AToW/WToA
PEXBRKPM m_pexbrkpm; // Params for BreakText call in progress.
BOOL m_fNormWord;
HGLOBAL m_hmemSrc;
HGLOBAL m_hmemDestNorm;
HGLOBAL m_hmemDestRaw;
DWORD m_cbBufSrcCur;
DWORD m_cbBufDestNormCur;
DWORD m_cbBufDestRawCur;
LPSIPB m_lpsipbTermHit;
};
// Initial size of Ansi<->Unicode string conversion buffers.
#define cbConvBufInit 256
#define IDXOBR_TERMHASH_SIZE 1013 // Large prime number good for supporting
// thousands of term hit words.
#endif // __IDXOBR_H__