Announcing ARQ, a query processor for Jena that implements SPARQL.

  http://sourceforge.net/project/showfiles.php?group_id=40417&package_id=143808

in the Jena downlaod area:  
  
    http://prdownloads.sourceforge.net/jena/

ARQ is also available via anonymous CVS:

cvs -z3 -d:pserver:anonymous@cvs.sourceforge.net:/cvsroot/jena co ARQ

SPARQL is described in:
  http://www.w3.org/TR/rdf-sparql-query/


Status
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The implementation of SPARQL is complete and meets the SPARQL working draft.

New in this version
+ Remote query via HTTP (SPARQL protocol)
+ Command line support for makign remote queries
+ Function library, including dynamic loading of user defined filter tests.

See ChangeLog.txt for more details.

Online demo
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http://www.sparql.org/query.html

Support and Questions
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Comments on SPARQL to the public comments list:
    public-rdf-dawg-comments@w3.org

Comments and questions about ARQ to the Jena mailing list 
    jena-dev@groups.yahoo.com