Add support for :literal_equality
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Closes #242. |
This allows Enumerables to decline to preserve term-inequality for literals that are value-equal. For example: `"01"^^xsd:integer` and `"1"^^xsd:integer` have equal values, but are not equal per RDF term-equality. An enumerable supporting `:literal_equality` must preserve this distinction across reads; one that does not may canonicalize the lexical representation of its literals at its own discretion. Note that an `Enumerable` need not be `Mutable` to perform this canonicalization. For example, a data store may have an "optimize" operation which performs the canonicalization independent of RDF.rb's interactions.
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Add support for `:literal_equality`
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This allows Enumerables to decline to preserve term-inequality for literals that are value-equal.
For example:
"01"^^xsd:integerand"1"^^xsd:integerhave equal values, but are not equal per RDF term-equality. An enumerable supporting:literal_equalitymust preserve this distinction across reads; one that does not may canonicalize the lexical representation ofits literals at its own discretion.
Note that an
Enumerableneed not beMutableto perform this canonicalization. For example, a data store may have an "optimize" operation which performs the canonicalization independent of RDF.rb's interactions.The related specs are in ruby-rdf/rdf-spec#60.