class RDF::N3::Algebra::Time::Hour
For a date-time, its time:hour is the hour in the 24 hour clock.
@see www.w3.org/TR/xpath-functions/#func-hours-from-dateTime
Constants
- NAME
- URI
Public Instance Methods
resolve(resource, position:)
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The time:hour operator takes string or dateTime and extracts the hour component.
@param [RDF::Term] resource @param [:subject, :object] position @return [RDF::Term] @see RDF::N3::ResourceOperator#evaluate
# File lib/rdf/n3/algebra/time/hour.rb, line 17 def resolve(resource, position:) case position when :subject return nil unless resource.literal? resource.as_datetime.hours when :object return nil unless resource.literal? || resource.variable? resource end end
valid?(subject, object)
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There is no hour unless it was specified in the lexical form
# File lib/rdf/n3/algebra/time/hour.rb, line 30 def valid?(subject, object) subject.value.match?(%r(^\d{4}-\d{2}-\d{2}T\d{2})) end