RDF.Literal.Datatype.do_compare
do_compare
, go back to RDF.Literal.Datatype module for more information.
Specs
do_compare(literal() | any(), literal() | any()) :: comparison_result() | :indeterminate | nil
Callback for datatype specific compare/2
comparisons between two RDF.Literal
s.
This callback is called by auto-generated compare/2
function on the implementations, which already deals with the basic cases.
So, implementations can assume the passed arguments are valid RDF.Literal.Datatype
structs and
have the same datatypes or are derived from each other.
Should return :gt
if value of the first literal is greater than the value of the second in
terms of their datatype and :lt
for vice versa. If the two literals can be considered equal :eq
should be returned.
For datatypes with only partial ordering :indeterminate
should be returned when the
order of the given literals is not defined.
nil
should be returned when the given arguments are not comparable datatypes or if one them is invalid.
The default implementation of the _using__
macro of RDF.Literal.Datatype
s
just compares the values of the given literals.