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SpanScorer.h
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1 // Copyright (c) 2009-2011 Alan Wright. All rights reserved.
3 // Distributable under the terms of either the Apache License (Version 2.0)
4 // or the GNU Lesser General Public License.
6 
7 #ifndef SPANSCORER_H
8 #define SPANSCORER_H
9 
10 #include "Scorer.h"
11 
12 namespace Lucene
13 {
15  class LPPAPI SpanScorer : public Scorer
16  {
17  public:
18  SpanScorer(SpansPtr spans, WeightPtr weight, SimilarityPtr similarity, ByteArray norms);
19  virtual ~SpanScorer();
20 
22 
23  protected:
26  ByteArray norms;
27  double value;
28  bool more;
29  int32_t doc;
30  double freq;
31 
32  public:
33  virtual int32_t nextDoc();
34  virtual int32_t advance(int32_t target);
35  virtual int32_t docID();
36  virtual double score();
37 
38  protected:
39  virtual bool setFreqCurrentDoc();
40 
43  virtual ExplanationPtr explain(int32_t doc);
44 
45  friend class SpanWeight;
46  friend class PayloadNearSpanWeight;
47  };
48 }
49 
50 #endif

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