Class: Factbase::IndexedNot

Inherits:
Object
  • Object
show all
Defined in:
lib/factbase/indexed/indexed_not.rb

Overview

Indexed term ‘not’.

Instance Method Summary collapse

Constructor Details

#initialize(term, idx) ⇒ IndexedNot

Returns a new instance of IndexedNot.



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# File 'lib/factbase/indexed/indexed_not.rb', line 8

def initialize(term, idx)
  @term = term
  @idx = idx
end

Instance Method Details

#predict(maps, fb, params) ⇒ Object 



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# File 'lib/factbase/indexed/indexed_not.rb', line 13

def predict(maps, fb, params)
  sub = @term.operands.first
  key = [maps.object_id, sub, @term.op]
  @idx[key] ||= { facts: nil, count: 0, yes_set: nil }
  entry = @idx[key]
  _feed(maps.to_a, entry) do
    sub.predict(maps, fb, params)
  end
  return nil if entry[:facts].nil?
  maps.respond_to?(:repack) ? maps.repack(entry[:facts]) : entry[:facts]
end