Module: Factbase::IndexedTerm

Defined in:
lib/factbase/indexed/indexed_term.rb

Overview

Term with an index.

Author

Yegor Bugayenko ([email protected])

Copyright

Copyright © 2024-2025 Yegor Bugayenko

License

MIT

Instance Method Summary collapse

Instance Method Details

#predict(maps, fb, params) ⇒ Array<Hash>|nil

Reduces the provided list of facts (maps) to a smaller array, if it’s possible.

NIL must be returned if indexing is prohibited in this case.

Parameters:

  • maps (Array<Hash>) —

    Array of facts

  • params (Hash) —

    Key/value params to use

Returns:

  • (Array<Hash>|nil) —

    Returns a new array, or NIL if the original array must be used



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# File 'lib/factbase/indexed/indexed_term.rb', line 32

def predict(maps, fb, params)
  if @terms.key?(@op)
    t = @terms[@op]
    return t.predict(maps, fb, params) if t.respond_to?(:predict)
  end
  m = :"#{@op}_predict"
  return send(m, maps, fb, params) if respond_to?(m)
  _init_indexes unless @indexes
  @indexes[@op].predict(maps, fb, params) if @indexes.key?(@op)
end