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Diffstat (limited to '3rdparty/clucene/src/CLucene/search/PhraseScorer.h')
-rw-r--r-- | 3rdparty/clucene/src/CLucene/search/PhraseScorer.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/3rdparty/clucene/src/CLucene/search/PhraseScorer.h b/3rdparty/clucene/src/CLucene/search/PhraseScorer.h new file mode 100644 index 000000000..89f7a1fbb --- /dev/null +++ b/3rdparty/clucene/src/CLucene/search/PhraseScorer.h @@ -0,0 +1,65 @@ +/*------------------------------------------------------------------------------ +* Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team +* +* Distributable under the terms of either the Apache License (Version 2.0) or +* the GNU Lesser General Public License, as specified in the COPYING file. +------------------------------------------------------------------------------*/ +#ifndef _lucene_search_PhraseScorer_ +#define _lucene_search_PhraseScorer_ + +#if defined(_LUCENE_PRAGMA_ONCE) +# pragma once +#endif + +#include "PhraseQueue.h" +#include "PhrasePositions.h" +#include "Scorer.h" +#include "Similarity.h" + +CL_NS_DEF(search) + + class PhraseScorer: public Scorer { + private: + Weight* weight; + qreal freq; + bool firstTime; + bool more; + + protected: + uint8_t* norms; + qreal value; + + PhraseQueue* pq; //is used to order the list point to by first and last + PhrasePositions* first; //Points to the first in the list of PhrasePositions + PhrasePositions* last; //Points to the last in the list of PhrasePositions + + public: + //Constructor + PhraseScorer(Weight* weight, CL_NS(index)::TermPositions** tps, + int32_t* positions, Similarity* similarity, uint8_t* norms); + virtual ~PhraseScorer(); + + int32_t doc() const { return first->doc; } + bool next(); + qreal score(); + bool skipTo(int32_t target); + + + void explain(int32_t doc, Explanation* ret); + TCHAR* toString(); + protected: + virtual qreal phraseFreq() =0; + + //Transfers the PhrasePositions from the PhraseQueue pq to + //the PhrasePositions list with first as its first element + void pqToList(); + + //Moves first to the end of the list + void firstToLast(); + private: + bool doNext(); + void init(); + void sort(); + }; +CL_NS_END +#endif |