Class: RDF::N3::Algebra::Math::NotEqualTo

Inherits:

EqualTo

• Object
• SPARQL::Algebra::Operator::Binary
• ResourceOperator
• EqualTo
• RDF::N3::Algebra::Math::NotEqualTo

Defined in:

lib/rdf/n3/algebra/math/not_equal_to.rb

Overview

True iff the subject is a string representation of a number which is NOT EQUAL to a number of which the object is a string representation.

See Also:

• https://www.w3.org/TR/xpath-functions/#func-numeric-equal

Constant Summary

NAME =

:mathNotEqualTo

URI =

RDF::N3::Math.notEqualTo

Instance Attribute Summary

Attributes included from Enumerable

#existentials, #universals

Instance Method Summary

• #apply(term1, term2) ⇒ RDF::Literal::Boolean

  The math:notEqualTo operator takes a pair of strings or numbers and determines if they are not the same numeric value.

Methods inherited from EqualTo

#input_operand, #resolve

Methods inherited from ResourceOperator

#as_literal, #execute, #input_operand, #resolve, #valid?

Methods included from Builtin

#each, #evaluate, #hash, #input_operand, #rank, #to_uri

Instance Method Details

#apply(term1, term2) ⇒ RDF::Literal::Boolean

The math:notEqualTo operator takes a pair of strings or numbers and determines if they are not the same numeric value.

Parameters:

• term1 (RDF::Term) —

  an RDF term

• term2 (RDF::Term) —

  an RDF term

Returns:

• (RDF::Literal::Boolean) —

  true or false

Raises:

• (TypeError) —

  if either operand is not an RDF term or operands are not comperable

See Also:

• Term#==

# File 'lib/rdf/n3/algebra/math/not_equal_to.rb', line 21

def apply(term1, term2)
  RDF::Literal(super != RDF::Literal::TRUE)
end