Contents

module Internals

  module Indexed # :nodoc:all
    
    # TODO Rewrite.
    #
    # A Bundle is a number of indexes
    # per [index, category] combination.
    #
    # At most, there are three indexes:
    # * *core* index (always used)
    # * *weights* index (always used)
    # * *similarity* index (used with similarity)
    # 
    # In Picky, indexing is separated from the index
    # handling itself through a parallel structure.
    #
    # Both use methods provided by this base class, but
    # have very different goals:
    #
    # * *Indexing*::*Bundle* is just concerned with creating index files
    #   and providing helper functions to e.g. check the indexes.
    #
    # * *Index*::*Bundle* is concerned with loading these index files into
    #   memory and looking up search data as fast as possible.
    #
    module Bundle
    
      class Base
    
        attr_reader   :identifier, :configuration
        attr_accessor :similarity_strategy
      
        delegate :[], :to => :configuration
    
        def initialize name, configuration, similarity_strategy
          @identifier = "#{configuration.identifier}:#{name}"
      
          @index         = {}
          @weights       = {}
          @similarity    = {}
      
          @similarity_strategy = similarity_strategy
        end
    
        # Get a list of similar texts.
        #
        # Note: Does not return itself.
        #
        def similar text
          code = similarity_strategy.encoded text
          similar_codes = code && @similarity[code]
          similar_codes.delete text if similar_codes
          similar_codes || []
        end
      
        # Loads all indexes.
        #
        def load
          load_index
          load_weights
          load_similarity
          load_configuration
        end
      
      end
    
    end
    
  end
  
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
picky-1.5.2	lib/picky/internals/indexed/bundle/base.rb
picky-1.5.1	lib/picky/internals/indexed/bundle/base.rb
picky-1.5.0	lib/picky/internals/indexed/bundle/base.rb
picky-1.4.3	lib/picky/internals/indexed/bundle/base.rb
picky-1.4.2	lib/picky/internals/indexed/bundle/base.rb