Class: ConceptQL::Operators::Recall

Inherits:
Operator
  • Object
show all
Defined in:
lib/conceptql/operators/recall.rb

Overview

Mimics using a variable that has been set via “define” operator

The idea is that a concept might be very complex and it helps to break that complex concept into a set of sub-concepts to better understand it.

This operator will look for a sub-concept that has been created through the “define” operator and will fetch the results cached in the corresponding table

Constant Summary

Constants inherited from Operator

Operator::COLUMNS

Instance Attribute Summary

Attributes inherited from Operator

#arguments, #options, #upstreams, #values

Instance Method Summary collapse

Methods inherited from Operator

#evaluate, #initialize, #label, #select_it, #set_values, #sql, #stream

Methods included from Metadatable

#allows_many_upstreams, #allows_one_upstream, #argument, #category, #desc, #humanized_class_name, #inherited, #just_class_name, #option, #predominant_types, #preferred_name, #reset_categories, #to_metadata

Constructor Details

This class inherits a constructor from ConceptQL::Operators::Operator

Instance Method Details

#columns(query, local_type) ⇒ Object 



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# File 'lib/conceptql/operators/recall.rb', line 24

def columns(query, local_type)
  COLUMNS
end

#query(db) ⇒ Object 



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# File 'lib/conceptql/operators/recall.rb', line 20

def query(db)
  scope.from(db, source)
end

#source ⇒ Object 



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# File 'lib/conceptql/operators/recall.rb', line 32

def source
  arguments.first
end

#types ⇒ Object 



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# File 'lib/conceptql/operators/recall.rb', line 28

def types
  scope.types(source)
end