Minto van der Sluis created CLEREZZA-782:
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Summary: Add meta data (varNames) to Sparql ResultSet
Key: CLEREZZA-782
URL: https://issues.apache.org/jira/browse/CLEREZZA-782
Project: Clerezza
Issue Type: Bug
Components: rdf.core
Reporter: Minto van der Sluis
The class ResultSet only allows indirect access to the varNames in the query
results. There are a number of drawbacks to the current solution:
1) the iterator needs to be accessed to get the varNames from
SolutionMapping.getKeySet()
2) I suspect that optional varNames present in the Query but not in the
resultset data will not appear in SolutionMapping.getKeySet()
3) If the RestultSet is empty there is no way to determine the varNames();
Both Jena and Sesame support retrieving the varNames from the ResultSet.
See also the mailing list conversation at:
http://mail-archives.apache.org/mod_mbox/clerezza-dev/201303.mbox/%3CCALvhUEUzSAoQpNXVmpTcVvR=DxZrFiDJexPgwB=jehc7pjf...@mail.gmail.com%3E
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