[
Date Prev][
Date Next][
Thread Prev][
Thread Next][
Date Index][
Thread Index]
[
List Home]
|
Re: [rdf4j-dev] SPARQL query against a NotifyingSailConnection
|
Hi Jeen,
Thanks for replying. And happy New Year!
Yeah. That was the class I meant.
I found the evaluate method that takes a TupleExpr, and got it working by using the query parser.
Am I correct in thinking that this will handle any arbitrary SELECT query? Without any limitations?
Håvard
> On 1 Jan 2018, at 23:25, Jeen Broekstra <jeen.broekstra@xxxxxxxxx> wrote:
>
>> On 2/1/18 03:36, Håvard Ottestad wrote:
>> Hi,
>>
>> As part of the SHACL engine I want to run SPARQL queries against the base sail on the current connection in the current transaction.
>>
>> However, since the SHACL Sail is built on the NotifyingSail system I end up having a NotifyingSailConnection and not a RepositorySailConnection.
> (Caveat: I'm out of the loop a bit)
>
> There is no class RepositorySailConnection in RDF4J.
>
> Are you thinking of SailRepositoryConnection perhaps? It's important to realize that this is an implementation of RepositoryConnection, not SailConnection (in other words: it's not part of the SAIL API).
>> NotifyingSailConnection doesn’t have the same convenience methods for SPARQL tuple queries as the RepositorySailConnection. Is there any way of wrapping the NotifyingSailConnection so that I get all those methods? Or maybe I’ve extended at the wrong point?
> Quite likely. SPARQL query parsing is only available at the level of the Repository API. At the level of the SAIL, you only have access to direct statement retrieval or directly evaluating TupleExprs.
>
> Cheers,
>
> Jeen
> _______________________________________________
> rdf4j-dev mailing list
> rdf4j-dev@xxxxxxxxxxx
> To change your delivery options, retrieve your password, or unsubscribe from this list, visit
> https://dev.eclipse.org/mailman/listinfo/rdf4j-dev
