Sha256: 4e5e809b50fa666310525f3ca8317b0e2e367c58ad2dff9ec9983435c176e9d2
Contents?: true
Size: 840 Bytes
Versions: 17
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Stored size: 840 Bytes
Contents
require 'time'
module SPARQL; module Algebra
class Operator
##
# The SPARQL logical `now` operator.
#
# @example
# (prefix ((xsd: <http://www.w3.org/2001/XMLSchema#>))
# (ask (filter (= (datatype ?n) xsd:dateTime)
# (extend ((?n (now)))
# (bgp)))))
#
# @see http://www.w3.org/TR/sparql11-query/#func-now
class Now < Operator::Nullary
include Evaluatable
NAME = :now
##
# Returns an XSD dateTime value for the current query execution. All calls to this function in any one query execution must return the same value. The exact moment returned is not specified.
#
# @return [RDF::Literal::Double] random value
def apply
RDF::Literal(DateTime.now)
end
end # Now
end # Operator
end; end # SPARQL::Algebra
Version data entries
17 entries across 17 versions & 1 rubygems