1.4.9.What programming interfaces are
supported? Do you support standard SPARQL protocol?
Virtuoso supports the standard SPARQL protocol.
Virtuoso offers drivers for the Jena, Sesame, and Redland
frameworks. These allow using Virtuoso's store and SPARQL
implementation as the back end of Jena, Sesame, or Redland
applications. Virtuoso will then do the query optimization and
execution. Jena and Sesame drivers come standard; contact us about
Virtuoso SPARQL can be used through any SQL call level interface
(CLI) supported by Virtuoso (i.e., ODBC, JDBC, OLE-DB, ADO.NET,
XMLA). All have suitable extensions for RDF specific data types
such as IRIs and typed literals. In this way, one can write, for
example, PHP web pages with SPARQL queries embedded, just using the
SQL tools. Prefixing a SQL query with the keyword "sparql" will
invoke SPARQL instead of SQL, through any SQL client API.