Andy Seaborne created JENA-886:
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             Summary: Add xsd datatype
                 Key: JENA-886
                 URL: https://issues.apache.org/jira/browse/JENA-886
             Project: Apache Jena
          Issue Type: Improvement
          Components: Datatypes
    Affects Versions: Jena 2.12.1
            Reporter: Andy Seaborne
            Assignee: Andy Seaborne
            Priority: Minor


There are some new XSD datatypes not covered by Jena's datatype system.

* xsd:dateTimeStamp
* xsd:yearMonthDuration
* xsd:dayTimeDuration

They are all derived types.  While Xerces does not directly support them (they 
are in XSD 1.1 final, Xerces 2.11.0 only goes as far as drafts of 1.1), they 
can be supported easily by inherining from the base type and fixing the URI and 
the parsing.  Their value is one of the existing value types and they can be 
treated via syntactic restrictions on the lexical form.

ARQ already handles these types as values to a limited extent.  Putting them 
into Jena core datatypes woul dunify the handling.



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