RDF.Literal.is_a-question-mark

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is_a?(literal, datatype)

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Checks if 'literal' is literal with the given datatype.

datatype can be one of the following:

  • a RDF.Literal.Datatype module which checks if the literal is of this datatype or derived from it
  • RDF.XSD.Numeric which checks if the literal is one of the numeric XSD datatypes or derived of one of them
  • RDF.XSD.Datatype which checks if the literal is a XSD datatype or derived of one of them