cpp/galago/include/BinnedIndex.hpp

   1
   2 //
   3 // BinnedIndex
   4 //
   5 // 5 January 2007 -- tds
   6 //
   7
   8 #ifndef GALAGO_BINNEDINDEX_HPP
   9 #define GALAGO_BINNEDINDEX_HPP
  10
  11 #include "DocumentNameReader.hpp"
  12 #include "indri/Parameters.hpp"
  13 #include <map>
  14 #include "BinnedFeatureIndex.hpp"
  15 #include <vector>
  16 #include <string>
  17 #include "Query.hpp"
  18
  19 class BinnedIndex {
  20 private:
  21     DocumentNameReader _documents;
  22     indri::api::Parameters _parameters;
  23     std::map<std::string, BinnedFeatureIndex*> _features;
  24     int _bins;
  25     bool _requiresWeighting;
  26
  27     BinnedFeatureIndex* _getIndex( const std::string& feature ) const;
  28
  29 public:
  30     ~BinnedIndex();
  31     void openRead( const std::string& pathname );
  32
  33     void close();
  34     int bins();
  35     std::vector<std::string> getFeatureNames() const;
  36     BinOrderedBinnedIterator* getIterator( const std::string& feature, const std::string& term ) const;
  37     std::string getDocument( int index ) const;
  38     std::vector<QueryTerm> processTerms( const std::vector<QueryTerm>& terms ) const;
  39
  40     bool requiresWeighting() const;
  41     UINT64 maximumDocumentCount() const;
  42 };
  43
  44 #endif // GALAGO_BINNEDINDEX_HPP