On Tue, Jul 3, 2012 at 7:47 AM, Claude Warren <[email protected]> wrote: > 2 Quick questions: > > 1. Is there a list of standard filters that all SPARQL 1.1 must implement > (w3c specified for example)?
Looking at the SPARQL 1.1 docs, I don't see a particularly convenient list anywhere, but if you look at the Filter production [1] (prod. 64) in the grammar, and follow it a few levels down, you'll find out a lot about what kind of filters you can write. The BuiltInCall [2] (prod. 111) production is almost the list you're looking for. > 2. Is there a list of filters implemented in Jena? The Extensions in ARQ page [3] descibes some of the things Jena implements, and links to some property functions [4] and filter functions [5]. I'm not a Jena/ARQ dev, just a Jena and SPARQL user, so I can't speak authoritatively, but I hope this helps a bit. //JT [1] http://www.w3.org/TR/sparql11-query/#rFilter [2] http://www.w3.org/TR/sparql11-query/#rBuiltInCall [3] http://jena.sourceforge.net/ARQ/extension.html#valueFunctions [4] http://jena.sourceforge.net/ARQ/library-propfunc.html [5] http://jena.sourceforge.net/ARQ/library-function.html -- Joshua Taylor, http://www.cs.rpi.edu/~tayloj/
