Class: Arrow::Slicer::EqualCondition

Inherits:
Condition
  • Object
show all
Defined in:
lib/arrow/slicer.rb

Instance Method Summary collapse

Methods inherited from Condition

#&, #^, #|

Constructor Details

#initialize(column, value) ⇒ EqualCondition

Returns a new instance of EqualCondition.



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# File 'lib/arrow/slicer.rb', line 183

def initialize(column, value)
  @column = column
  @value = value
end

Instance Method Details

#!@ ⇒ Object 



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# File 'lib/arrow/slicer.rb', line 188

def !@
  NotEqualCondition.new(@column, @value)
end

#evaluate ⇒ Object 



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# File 'lib/arrow/slicer.rb', line 192

def evaluate
  if @value.nil?
    Function.find("is_null").execute([@column.data]).value
  else
    Function.find("equal").execute([@column.data, @value]).value
  end
end