Class: Valkyrie::Persistence::Fedora::Persister::OrmConverter::GraphToAttributes::LiteralValue

Inherits:

ValueMapper

• Object
• ValueMapper
• Valkyrie::Persistence::Fedora::Persister::OrmConverter::GraphToAttributes::LiteralValue

Defined in:

lib/valkyrie/persistence/fedora/persister/orm_converter.rb

Overview

Class for mapping RDF XML literals into Valkyrie Resource attribute values

Instance Attribute Summary

Attributes inherited from ValueMapper

#calling_mapper, #value

Class Method Summary

• .handles?(value) ⇒ Boolean

  Determines whether or not a Property statement is an RDF literal typed using XML data types.

Instance Method Summary

• #result ⇒ Applicator

  Casts the value of the RDF literal into an Applicator for XML datatype values.

Methods inherited from ValueMapper

for, #initialize, register

Constructor Details

This class inherits a constructor from Valkyrie::ValueMapper

Class Method Details

.handles?(value) ⇒ Boolean

Determines whether or not a Property statement is an RDF literal typed using XML data types

Parameters:

• value (Property)

Returns:

• (Boolean)

See Also:

• https://www.w3.org/TR/rdf11-concepts/#section-Graph-Literal
• https://www.w3.org/TR/xmlschema-2/#built-in-datatypes

# File 'lib/valkyrie/persistence/fedora/persister/orm_converter.rb', line 372

def self.handles?(value)
  value.statement.object.is_a?(RDF::Literal) && value.statement.object.language.blank? && value.statement.object.datatype == RDF::URI("http://www.w3.org/2001/XMLSchema#string")
end

Instance Method Details

#result ⇒ Applicator

Casts the value of the RDF literal into an Applicator for XML datatype values

Returns:

• (Applicator)

# File 'lib/valkyrie/persistence/fedora/persister/orm_converter.rb', line 378

def result
  value.statement.object = value.statement.object.to_s
  calling_mapper.for(Property.new(statement: value.statement, scope: value.scope, adapter: value.adapter)).result
end