Class: RDF::Literal::DayTimeDuration

Inherits:
Duration show all
Defined in:
lib/rdf/xsd/duration.rb

Overview

A DayTimeDuration literal.

dayTimeDuration is a datatype ·derived· from duration by restricting its ·lexical representations· to instances of dayTimeDurationLexicalRep. The ·value space· of dayTimeDuration is therefore that of duration restricted to those whose ·months· property is 0. This results in a duration datatype which is totally ordered.

See Also:

Constant Summary collapse

DATATYPE = 
RDF::XSD.dayTimeDuration
GRAMMAR = 
%r(\A
  (?<si>-)?
  P(?:(?:(?:(?<da>\d+)D)
      )
      (?:T(?:(?:(?:(?<hr>\d+)H)(?:(?<mi>\d+)M)?(?<se>\d+(?:\.\d+)?S)?)
          |  (?:(?:(?<mi>\d+)M)(?:(?<se>\d+(?:\.\d+)?)S)?)
          |  (?:(?<se>\d+(?:\.\d+)?)S)
          )
      )?
   |(?:T(?:(?:(?:(?<hr>\d+)H)(?:(?<mi>\d+)M)?(?<se>\d+(?:\.\d+)?S)?)
        |  (?:(?:(?<mi>\d+)M)(?:(?<se>\d+(?:\.\d+)?)S)?)
        |   (?:(?<se>\d+(?:\.\d+)?)S)
        )
    )
   )
\z)x.freeze

Instance Method Summary collapse

Methods inherited from Duration

#==, #canonicalize!, #days, #hours, #humanize, #initialize, #minutes, #months, #plural, #seconds, #to_h, #to_s, #valid?, #years

Constructor Details

This class inherits a constructor from RDF::Literal::Duration

Instance Method Details

#*(other) ⇒ DayTimeDuration

Returns the result of multiplying the value of self by other. The result is rounded to the nearest month.

From the XQuery function op:multiply-dayTimeDuration.

Parameters:

  • other (Literal::Numeric, ::Numeric)

Returns:

See Also:



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# File 'lib/rdf/xsd/duration.rb', line 421

def *(other)
  return type_error("#{other.inspect} is not a valid Numeric")  unless (other.is_a?(::Numeric) || other.is_a?(Literal::Numeric))
  self.class.new([0, object.last * other.to_f])
end

#+(other) ⇒ DayTimeDuration

Returns the sum of two xs:dayTimeDuration values.

From the XQuery function op:add-dayTimeDurations.

Parameters:

Returns:

See Also:



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# File 'lib/rdf/xsd/duration.rb', line 395

def +(other)
  return type_error("#{other.inspect} is not a valid DayTimeDuration") unless other.is_a?(Literal::DayTimeDuration) && other.valid?
  self.class.new([0, object.last + other.object.last])
end

#-(other) ⇒ DayTimeDuration

Returns the result of subtracting one xs:dayTimeDuration value from another.

From the XQuery function op:subtract-dayTimeDurationss.

Parameters:

Returns:

See Also:



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# File 'lib/rdf/xsd/duration.rb', line 408

def -(other)
  return type_error("#{other.inspect} is not a valid DayTimeDuration")  unless other.is_a?(Literal::DayTimeDuration) && other.valid?
  self.class.new([0, object.last - other.object.last])
end

#/(other) ⇒ DayTimeDuration, Decimal

Returns the result of dividing the value of self by other. The result is rounded to the nearest month.

From the XQuery functions op:divide-yearMonthDuration and op:divide-yearMonthDuration-by-yearMonthDuration.

Parameters:

Returns:

See Also:



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# File 'lib/rdf/xsd/duration.rb', line 435

def /(other)
  case other
  when DayTimeDuration
    return type_error("#{other.inspect} is not a valid DayTimeDuration or Numeric")  unless other.valid?
    Decimal.new(object.last / other.object.last.to_f)
  when Literal::Numeric, ::Numeric
    self.class.new([0, object.last / other.to_f])
  else
    type_error("#{other.inspect} is not a valid DayTimeDuration or Numeric") 
  end
end

#<=>(other) ⇒ Boolean

Compares this literal to other for sorting purposes.

From the XQuery function op:dayTimeDuration-less-than.

Parameters:

Returns:

  • (Boolean) —

    true if less than other for defined datatypes

See Also:



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# File 'lib/rdf/xsd/duration.rb', line 456

def <=>(other)
  return type_error("#{other.inspect} is not a valid DayTimeDuration") unless other.is_a?(Literal::DayTimeDuration) && other.valid?
  @object.last <=> other.object.last
end

#to_r ⇒ Rational

Converts the dayTimeDuration into rational seconds.

Returns:

  • (Rational) 


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# File 'lib/rdf/xsd/duration.rb', line 465

def to_r
  Rational(object.last) / (24 * 3600)
end