Class: Philtre::EmptyExpression

Inherits:

Sequel::SQL::Expression

• Object
• Sequel::SQL::Expression
• Philtre::EmptyExpression

Defined in:

lib/philtre/empty_expression.rb

Overview

used when transforming to unaltered or partially altered datasets

Instance Method Summary

• #empty? ⇒ Boolean

  sometimes this is returned in place of an empty array.

• #to_s_append(ds, s) ⇒ Object

Instance Method Details

#empty? ⇒ Boolean

sometimes this is returned in place of an empty array

Returns:

• (Boolean)

# File 'lib/philtre/empty_expression.rb', line 6

def empty?; true; end

#to_s_append(ds, s) ⇒ Object

# File 'lib/philtre/empty_expression.rb', line 7

def to_s_append( ds, s ); end