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module Index # :nodoc:all
# 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.
#
class Bundle
attr_reader :identifier, :files
attr_accessor :index, :weights, :similarity, :configuration, :similarity_strategy
delegate :clear, :to => :index
delegate :[], :[]=, :to => :configuration
def initialize name, configuration, similarity_strategy
@identifier = "#{configuration.identifier} (#{name})"
@files = Files.new name, configuration
@index = {}
@weights = {}
@similarity = {}
@configuration = {} # A hash with config options.
@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
end
end
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15 entries across 15 versions & 1 rubygems