Sha256: b600c4818560e3da58731279c8bcde187b32d4dab0385554d1f45bd130afa79f
Contents?: true
Size: 1.01 KB
Versions: 10
Compression:
Stored size: 1.01 KB
Contents
module SPARQL; module Algebra
class Operator
##
# The SPARQL `strdt` operator.
#
# @example
# (project (?s ?str1)
# (extend ((?str1 (strdt ?str xsd:string)))
# (filter (langMatches (lang ?str) "en")
# (bgp (triple ?s :str ?str))))))
#
# @see http://www.w3.org/TR/sparql11-query/#func-strdt
class StrDT < Operator::Binary
include Evaluatable
NAME = :strdt
##
# Constructs a literal with lexical form and type as specified by the arguments.
#
# @param [RDF::Literal] value
# a literal
# @param [RDF::URI] datatypeIRI
# datatype
# @return [RDF::Literal] a datatyped literal
# @see http://www.w3.org/TR/sparql11-query/#func-strdt
def apply(value, datatypeIRI)
raise TypeError, "Literal #{value.inspect} is not simple" unless value.simple?
RDF::Literal.new(value.to_s, :datatype => datatypeIRI)
end
end # StrDT
end # Operator
end; end # SPARQL::Algebra
Version data entries
10 entries across 10 versions & 1 rubygems