Hi,
There is more machinery around the algebra for running visitor patterns
over algebra expressions than there is for syntax (ElementVisitor).
RecursiveElementVisitor applies an ElementVisitor over an abstract
syntax tree.
There isn't anything I know of to do the analysis of the pattern.
Bart,
I was referring to the querybuilder source code.
On Mon, Oct 7, 2019 at 11:53 AM Bart van Leeuwen
wrote:
> Claude,
>
> This sounds useful, are you referring to the actual Jena source code for
> your examples?
>
> Met Vriendelijke Groet / With Kind Regards
> Bart van Leeuwen
>
>
>
Hi Bart,
SPIN would help you to turn the SPARQL query into RDF:
https://spinrdf.org/sp.html#sp-TriplePattern
Then you could probably add SPIN Rules on top to infer what you need:
https://spinrdf.org/spin.html#spin-rules-construct
On Mon, Oct 7, 2019 at 3:13 AM Bart van Leeuwen
wrote:
> Hi,
>
Claude,
This sounds useful, are you referring to the actual Jena source code for
your examples?
Met Vriendelijke Groet / With Kind Regards
Bart van Leeuwen
twitter: @semanticfire
tel. +31(0)6-53182997
Netage B.V.
http://netage.nl
Esdoornstraat 3
3461ER Linschoten
The Netherlands
From:
Bart,
Not sure exactly what you are trying to do or actually looking for but,
assuming you have a parsed query and you want to detect the
pattern so you can state that ?t is a class you could use
the ElementVisitor pattern. See the query builder WhereHandler.build()
method as well as the
Adrian,
I'm looking for code examples specifically Jena, don't see any references
here.
Met Vriendelijke Groet / With Kind Regards
Bart van Leeuwen
twitter: @semanticfire
tel. +31(0)6-53182997
Netage B.V.
http://netage.nl
Esdoornstraat 3
3461ER Linschoten
The Netherlands
From: Adrian
