Hola guys!
When implementing a SparqleW3CTupleWriter for
https://jira.duraspace.org/browse/FCREPO-1023 in Trippi, which i
basically copied from SparqlTupleWriter, i stumbled upon this null check in
https://github.com/fcrepo/trippi/blob/master/trippi-core/src/main/java/org/trippi/io/SparqlTupleWriter.java
at line 55:
...
Node n = result.get(names[i]);
if ( n == null ) {
m_out.println(" bound=\"false\"/>");
} else if ( n instanceof URIReference ) {
...
Im not quite sure how to handle this null checks in a Tuple Writer
conforming to the docuemtnation at http://www.w3.org/TR/rdf-sparql-XMLres/
Can you give me a hint on how to handle these null nodes?
--
*frank asseg*
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