Class: Bmg::Relation::Materialized

Inherits:
Object
  • Object
show all
Includes:
Operator::Unary
Defined in:
lib/bmg/relation/materialized.rb

Instance Method Summary collapse

Methods included from Operator::Unary

#bind

Methods included from Operator

#inspect, #to_s

Methods included from Bmg::Relation

#bind, #debug, #delete, empty, #empty?, #insert, new, #one, #one_or_nil, #to_csv, #to_json, #update, #visit, #with_typecheck, #without_typecheck, #y_by_x, #ys_by_x

Methods included from Algebra

#allbut, #autosummarize, #autowrap, #constants, #extend, #group, #image, #join, #left_join, #matching, #materialize, #not_matching, #page, #project, #rename, #restrict, #spied, #summarize, #transform, #union, #unspied

Methods included from Algebra::Shortcuts

#image, #join, #left_join, #matching, #not_matching, #prefix, #rxmatch, #suffix

Constructor Details

#initialize(operand) ⇒ Materialized

Returns a new instance of Materialized.



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# File 'lib/bmg/relation/materialized.rb', line 6

def initialize(operand)
  @operand = operand
end

Instance Method Details

#args ⇒ Object 



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# File 'lib/bmg/relation/materialized.rb', line 30

def args
  []
end

#each(&bl) ⇒ Object 



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# File 'lib/bmg/relation/materialized.rb', line 21

def each(&bl)
  @operand = Relation::InMemory.new(operand.type, operand.to_a) unless @operand.is_a?(Relation::InMemory)
  @operand.each(&bl)
end

#to_ast ⇒ Object 



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# File 'lib/bmg/relation/materialized.rb', line 26

def to_ast
  [ :materizalized, operand ]
end

#type ⇒ Object 



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# File 'lib/bmg/relation/materialized.rb', line 10

def type
  operand.type
end