Hi Stewart, you may want to ask this question on the Franz mailing lists.
Holger On Oct 5, 2008, at 5:20 PM, Stewart Wallace wrote: > > Having finished watching another webinar - perhaps the follow-up > question is when the Agraph browser will be available and whether is > will incorporate some of these geospatial capabilities or those shown > towards the end of the 28th August webinar where you showed a sparql > query incorporating a HAVERSINE function for objects around London. > > Thanks again. > > > > > Stewart Wallace > > -----Original Message----- > From: Stewart Wallace > Sent: Monday, 6 October 2008 10:22 > To: '[email protected]' > Subject: RE: [tbc-users] Re: Getting started with functions in FILTER > statements in Topbraid SPARQL > > Gokhan, > > I realise now those functions are available. I guess what I'm really > trying to clarify is whether I can do geo-spatial querying within the > sparql engine in Topbraid. There seem to be a few possibilities but > perhaps none of them are possible: > > 1. by incorporating additional ARQ extensions like Leigh Dodd's > mentioned below 2. through availability of AllegroGraph's geospatial > capabilities in Topbraid sparql 3. by being able to run the AGselect > query language from within Topbraid > > I may have picked-up the answer to this from your 28th August webinar > where it is mentioned that AGselect capabilities are being considered > for incorporation into sparql but that isn't happening yet. > > Perhaps you could just clarify for me whether any of the 3 options > above > is possible (I get the impression they aren't) and give me some idea > of > the likely timeframe for incorporation of select-like capabilities > into > sparql (perhaps that's complicated by the whole standards development > process). > > Thanks for your assistance. > > > > Stewart Wallace > > -----Original Message----- > From: [email protected] > [mailto:[EMAIL PROTECTED] On Behalf Of Gokhan > Soydan > Sent: Sunday, 5 October 2008 16:15 > To: [email protected] > Subject: [tbc-users] Re: Getting started with functions in FILTER > statements in Topbraid SPARQL > > > Stewart, > > You can use "pf" prefix for ARQ property functions and "fn" prefix for > ARQ filter functions. These prefixes are implicitly defined for SPARQL > queries in TopBraid Composer, so you can just use them in a query as > for > example "pf:splitURI" or "fn:max" etc. > > Gokhan > > > > Stewart Wallace wrote: >> Holger, >> >> Thanks for that. I'm still wondering whether it's possible run ARQ >> Extensions within the Topbraid sparql environment using the java: >> prefix construct etc. I'm also interested in trying Leigh Dodds >> geosptial extensions >> (http://xmlarmyknife.com/blog/archives/000281.html) but I'd rather do > so within Topbraid. Or can SparqlMotion help with this? >> >> Thanks, >> >> >> >> Stewart Wallace >> >> -----Original Message----- >> From: [email protected] >> [mailto:[EMAIL PROTECTED] On Behalf Of Holger >> Knublauch >> Sent: Saturday, 4 October 2008 3:08 >> To: [email protected] >> Subject: [tbc-users] Re: Getting started with functions in FILTER >> statements in Topbraid SPARQL >> >> >> Hi Stewart, >> >> regex expects a string as its first argument, but ?node will be bound >> to resources only. So you could try >> >> FILTER regex(str(?node), "Node3") >> >> Good luck, >> Holger >> >> >> On Oct 3, 2008, at 10:01 AM, Stewart Wallace wrote: >> >> >>> I'm wondering if someone can just help get started here - I'm not >>> really a java programmer but I'm trying to uses functions within >>> sparql queries in Topbraid but I can't even get a regex expression >>> to > >>> have any affect in something trivial like the following (which I've >>> checked at spargl.org and it works there - returns Node3 from a very >>> small set of rdf): >>> >>> SELECT ?node >>> WHERE >>> { ?node rdf:type :Intersection. >>> FILTER regex(?node, "Node3") >>> } >>> >>> I'm using Topbraid Standard 2.5.1 - do I need Maestro? Is there a >>> package or library I need to import first? Is there an additonal >>> PREFIX statement required? >>> >>> I'm really interested in trying some other ARQ extensions that have >>> been developed (e.g. geo-related) but can't get to first base at >>> this > >>> stage! >>> >>> Thanks if someone can assist. >>> >>> >>> >>> Stewart Wallace >>> >>> >>> >> >> >> >> >> >> ______________________________________________________________________ >> _________________________ This email and any files transmitted with >> it > >> are intended solely for the use of the addressee(s) and may contain >> information that is confidential or subject to legal privilege. 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