Class: Piglet::Field::UdfExpression

Inherits:

Object

Object
Piglet::Field::UdfExpression

show all

Includes:: Field

Defined in:: lib/piglet/field/udf_expression.rb

Constant Summary

Constants included from Field

Field::FUNCTIONS, Field::SYMBOLIC_OPERATORS

Instance Attribute Summary

Attributes included from Field

Instance Method Summary collapse

#initialize(ali4s, *args) ⇒ UdfExpression constructor

A new instance of UdfExpression.
#to_s ⇒ Object

Methods included from Field

#and, #as, #cast, #diff, #empty?, #matches, #ne, #neg, #not, #not_null?, #null?, #or

Constructor Details

#initialize(ali4s, *args) ⇒ `UdfExpression`

Returns a new instance of UdfExpression.



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# File 'lib/piglet/field/udf_expression.rb', line 6

def initialize(ali4s, *args)
  @alias, @args = ali4s, args
end

Instance Method Details

#to_s ⇒ `Object`



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# File 'lib/piglet/field/udf_expression.rb', line 10

def to_s
  "#{@alias}(#{args_to_s(@args)})"
end