Module: Spira::Type

Includes:

RDF

Included in:

Spira::Types::Any, Spira::Types::AnyURI, Spira::Types::Boolean, Spira::Types::Date, Spira::Types::DateTime, Spira::Types::Decimal, Spira::Types::Double, Spira::Types::Float, Spira::Types::GYear, Spira::Types::Int, Spira::Types::Integer, Spira::Types::Long, Spira::Types::Native, Spira::Types::NegativeInteger, Spira::Types::NonNegativeInteger, Spira::Types::NonPositiveInteger, Spira::Types::PositiveInteger, Spira::Types::String, Spira::Types::Time, Spira::Types::URI

Defined in:

lib/spira/type.rb

Overview

Spira::Type can be included by classes to create new property types for Spira. These types are responsible for serialization a Ruby value into an RDF::Value, and deserialization of an RDF::Value into a Ruby value.

A simple example:

class Integer

  include Spira::Type

  def self.unserialize(value)
    value.object
  end

  def self.serialize(value)
    RDF::Literal.new(value)
  end

  register_alias XSD.integer
end

This example will serialize and deserialize integers. It’s included with Spira by default. It allows either of the following forms to declare an integer property on a Spira resource:

property :age, predicate: RDF::Vocab::FOAF.age, type: Integer
property :age, predicate: RDF::Vocab::FOAF.age, type: RDF::XSD.integer

Spira::Types include the RDF namespace and thus have all of the base RDF vocabularies available to them without the RDF:: prefix.

See Also:

• https://ruby-rdf.github.io/rdf/RDF/Value.html
• Resource

Defined Under Namespace

Modules: ClassMethods