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Contents
module RDF::N3::Algebra::Str
# True iff the string is greater than the object when ordered according to Unicode(tm) code order.
class GreaterThan < RDF::N3::Algebra::ResourceOperator
NAME = :strGreaterThan
URI = RDF::N3::Str.greaterThan
##
# The string:greaterThan compares subject with object as strings.
#
# @param [RDF::Term] resource
# @param [:subject, :object] position
# @return [RDF::Term]
# @see RDF::N3::ResourceOperator#evaluate
def resolve(resource, position:)
resource if resource.literal?
end
# Both subject and object are inputs.
def input_operand
RDF::N3::List.new(values: operands)
end
##
# @param [RDF::Literal] left
# a literal
# @param [RDF::Literal] right
# a literal
# @return [RDF::Literal::Boolean]
def apply(left, right)
case
when !left.is_a?(RDF::Term) || !right.is_a?(RDF::Term) || !left.compatible?(right)
log_error(NAME) {"expected two RDF::Literal operands, but got #{left.inspect} and #{right.inspect}"}
when left > right then RDF::Literal::TRUE
else RDF::Literal::FALSE
end
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems