Lucene++ - a full-featured, c++ search engine
API Documentation


 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Pages
TermScorer.h
Go to the documentation of this file.
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 TERMSCORER_H
8 #define TERMSCORER_H
9 
10 #include "Scorer.h"
11 
12 namespace Lucene
13 {
15  class TermScorer : public Scorer
16  {
17  public:
24 
25  virtual ~TermScorer();
26 
28 
29  protected:
32  ByteArray norms;
33  double weightValue;
34  int32_t doc;
35 
36  Collection<int32_t> docs; // buffered doc numbers
37  Collection<int32_t> freqs; // buffered term freqs
38  int32_t pointer;
39  int32_t pointerMax;
40 
41  static const int32_t SCORE_CACHE_SIZE;
43 
44  public:
45  virtual void score(CollectorPtr collector);
46  virtual int32_t docID();
47 
52  virtual int32_t nextDoc();
53 
54  virtual double score();
55 
60  virtual int32_t advance(int32_t target);
61 
63  virtual String toString();
64 
65  protected:
66  static const Collection<double> SIM_NORM_DECODER();
67 
68  virtual bool score(CollectorPtr collector, int32_t max, int32_t firstDocID);
69  };
70 }
71 
72 #endif

clucene.sourceforge.net