Dear Andy, I'm sorry, I have been delayed by a project and couldn't create a working example / reproduction of the problem. I still plan to do so. Seeing the issue, I will try to give this a higher priority. Thank you!
Best, Daniel -----Original Message----- From: Andy Seaborne <a...@apache.org> Sent: Donnerstag, 15. April 2021 11:04 To: users@jena.apache.org Subject: Re: Adding subquery to construct query with the query builder Hi Daniel, Did you find a way to make this work? (There is now https://issues.apache.org/jira/browse/JENA-2092 <https://issues.apache.org/jira/browse/JENA-2092> top record the root issue) Andy On 05/04/2021 15:07, Andy Seaborne wrote: > > Hi Daniel, > > Do you have a complete, minimal example? This needs a JIRA ticket > because it should work and I think details are going to matter. > > "SELECT *" -- if there are no other SELECT level clauses (e.g. LIMIT) > is a no-op as a projection. > > Maybe try with named variables. > > Andy > > > On 02/04/2021 12:02, Daniel Jeller wrote: >> Hi, >> >> I’m trying to create a CONSTRUCT query using the Jena query builder and I >> couldn’t figure out how to correctly add a subquery. I’ve tried to create >> code similar to the following but in the end the expected “Select *” clause >> is missing, only the where parts are present. >> >> constructBuilder >> .addConstruct(construct-clauses) >> .addWhere( >> whereBuilder >> .addSubquery( >> SelectBuilder >> .addVar(“*”) >> .addWhere(sub-where) >> ) >> .addWhere(outer-where) >> ) >> >> What I’m trying to get is >> >> CONSTRUCT { >> construct-clauses >> } >> WHERE { >> SELECT * WHERE { sub-where} >> outer-where >> } >> >> But what I’m really getting is >> >> CONSTRUCT { >> construct-clauses >> } >> WHERE { >> WHERE { sub-where} >> outer-where >> } >> >> The “Select *” is missing. Am I doing something wrong with my query builder >> usage? >> >> Any help is appreciated! Thanks in advance. >> >> Daniel >> -- >> Mag. Daniel Jeller >> Monasterium / Digitisation / IT >> >> ICARUS >> -- >> Spaces Central Station >> Gertrude-Fröhlich-Sander Str. 2-4 >> Tower C, Floor 7-9 >> A-1100 Vienna >> AUSTRIA >> >> Web:http://icar-us.eu<http://icar-us.eu/> >> Platforms:http://monasterium.net<http://monasterium.net/>, >> http//matricula.info Join the ICARUS friends‘ >> association:http://4all.icar-us.eu<http://4all.icar-us.eu/> >>
