Hi Martynas,
Do you know ahead of time which variable(s) you're going to be injecting
the VALUES clause for?
I've been using a pattern where I add VALUES ?this { UNDEF } in "template"
queries, then at runtime parse the query and replace "UNDEF" (where all of
the DataBlockValue <https://www.w3.org/TR/sparql11-query/#rDataBlockValue>s
in a binding within a InlineDataFull are "UNDEF") with a set of bindings
supplied at runtime. This has the benefit that if you do not supply a
binding for ?this, UNDEF means it is left unbound.
Thanks,
On Mon, Nov 25, 2024 at 9:40 AM Martynas Jusevičius <marty...@atomgraph.com>
wrote:
> Hi,
>
> What would be the simplest way to safely (i.e. using query builder or
> algebra) to inject a VALUES block at the beginning of a query?
>
> For example
>
> SELECT *
> {
> ?this ?p ?o
> }
>
> should become
>
> SELECT *
> {
> VALUES ?this <http://localhost>
> ?this ?p ?o
> }
>
> after the injection.
>
> Thanks,
>
> Martynas
>
