@Andy As far as I understand the code, what you mentioned is just the first step to get some subject resource. And the findStatement() method is supposed to return the list, but it's not clear what he's doing in this method:
val prop = findStatement(Bp2BatchCompanyIds, rec as Resource) > Hi - could you print the data in a readable syntax such as Turtle? and > a complete, self-contained example? > > The list occurs at: > > <http://mycompany.com/data/bp-2/b-7406478b-9c33-4b51-bb46-3b854fc633cd> > <http://mycompany.com/data/bp-2/batch/companyIds> > ( 136648473 136648520 136648577 ) ; > > in the object position. > > val rec = sol["x"] > > ?x is a subject. > > Andy > > On 24/03/17 20:35, Dmitri Pisarenko wrote: >> Hello! >> >> I have a Jena-based database with an individual batch in it. A batch >> is a structure, which has (among other things) a list companyIds >> (elements are strings). In this particular example the batch number 1 >> has a list with following company IDs: >> >> 136648473 >> 136648520 >> 136648577 >> >> My goal is to retrieve this list. For this, I execute the following >> code: >> >> open fun batchStatusLogic(ds: Dataset, batchId: Int): >> FailableOperationResult<Bp2BatchStatus> { >> val sparql = """SELECT ?x >> WHERE { ?x <$Bp2BatchNumber> $batchId }""" >> val query = createQuery(sparql) >> val qexec = createQueryExecution(ds, query) >> val rs = qexec.execSelect() >> if (!rs.hasNext()) { >> return FailableOperationResult<Bp2BatchStatus>( >> false, >> "Batch not found.", >> null >> ) >> } >> val sol = rs.nextSolution() >> val rec = sol["x"] >> val prop = findStatement(Bp2BatchCompanyIds, rec as Resource) >> if (prop == null) { >> return FailableOperationResult<Bp2BatchStatus>( >> false, >> "Company list not found.", >> null >> ) >> } >> val obj = prop.`object` >> if (!(obj is RDFList)) { >> return FailableOperationResult<Bp2BatchStatus>(false, >> "Internal logic error.", null) >> } >> >> obj is not RDFList, but ResourceImpl with obj.enhGraph being >> displayed as the XML given below. >> >> How can I read all elements of the list (136648473, 136648520, >> 136648577) ? >> >> If there is a problem with the way the list is stored, please also tell. >> >> Thanks in advance >> >> Dmitri Pisarenko >> >> obj.enhGraph contents: >> >> <ModelCom >> {http://mycompany.com/data/p-7cc217a5-4d35-495c-880c-3d0a512eaaf7 >> @http://www.w3.org/2001/vcard-rdf/3.0#EMAIL "[email protected]"; >> http://mycompany.com/data/p-7cc217a5-4d35-495c-880c-3d0a512eaaf7 >> @http://www.w3.org/2001/vcard-rdf/3.0#N -1bac0f47:15a5c92e655:-7fff; >> http://mycompany.com/data/p-7cc217a5-4d35-495c-880c-3d0a512eaaf7 >> @http://mycompany.com/data/person/firstContactDateTime >> "2017-02-20T17:30:15.515Z"^^http://www.w3.org/2001/XMLSchema#dateTime; >> http://mycompany.com/data/p-7cc217a5-4d35-495c-880c-3d0a512eaaf7 >> @http://mycompany.com/data/person/telegramUserId >> "338329909"^^http://www.w3.org/2001/XMLSchema#integer; >> http://mycompany.com/data/p-7cc217a5-4d35-495c-880c-3d0a512eaaf7 >> @/bp1add "true"^^http://www.w3.org/2001/XMLSchema#boolean; >> -1bac0f47:15a5c92e655:-7fff >> @http://www.w3.org/2001/vcard-rdf/3.0#NICKNAME "mw"; >> http://mycompany.com/data/bp-2/b-7406478b-9c33-4b51-bb46-3b854fc633cd >> @http://mycompany.com/data/bp-2/batch/batchNumber >> "1"^^http://www.w3.org/2001/XMLSchema#integer; >> http://mycompany.com/data/bp-2/b-7406478b-9c33-4b51-bb46-3b854fc633cd >> @http://mycompany.com/data/bp-2/batch/persona "FD"; >> http://mycompany.com/data/bp-2/b-7406478b-9c33-4b51-bb46-3b854fc633cd >> @http://mycompany.com/data/bp-2/batch/companyIds >> 1d387ae6:15b01db5f1f:-7fff; 1d387ae6:15b01db5f1f:-7fff >> @http://www.w3.org/1999/02/22-rdf-syntax-ns#first >> "136648473"^^http://www.w3.org/2001/XMLSchema#integer; >> 1d387ae6:15b01db5f1f:-7fff >> @http://www.w3.org/1999/02/22-rdf-syntax-ns#rest >> 1d387ae6:15b01db5f1f:-7ffe; 1d387ae6:15b01db5f1f:-7ffe >> @http://www.w3.org/1999/02/22-rdf-syntax-ns#first >> "136648520"^^http://www.w3.org/2001/XMLSchema#integer; >> 1d387ae6:15b01db5f1f:-7ffe >> @http://www.w3.org/1999/02/22-rdf-syntax-ns#rest >> 1d387ae6:15b01db5f1f:-7ffd; 1d387ae6:15b01db5f1f:-7ffd >> @http://www.w3.org/1999/02/22-rdf-syntax-ns#first >> "136648577"^^http://www.w3.org/2001/XMLSchema#integer; >> 1d387ae6:15b01db5f1f:-7ffd >> @http://www.w3.org/1999/02/22-rdf-syntax-ns#rest >> http://www.w3.org/1999/02/22-rdf-syntax-ns#nil} | >> [http://mycompany.com/data/p-7cc217 > a5-4d35-495c-880c-3d0a512eaaf7, > http://www.w3.org/2001/vcard-rdf/3.0#EMAIL, "[email protected]"] > [http://mycompany.com/data/p-7cc217a5-4d35-495c-880c-3d0a512eaaf7, > http://www.w3.org/2001/vcard-rdf/3.0#N, -1bac0f47:15a5c92e655:-7fff] > [http://mycompany.com/data/p-7cc217a5-4d35-495c-880c-3d0a512eaaf7, > http://mycompany.com/data/person/firstContactDateTime, > "2017-02-20T17:30:15.515Z"^^http://www.w3.org/2001/XMLSchema#dateTime] > [http://mycompany.com/data/p-7cc217a5-4d35-495c-880c-3d0a512eaaf7, > http://mycompany.com/data/person/telegramUserId, > "338329909"^^http://www.w3.org/2001/XMLSchema#integer] > [http://mycompany.com/data/p-7cc217a5-4d35-495c-880c-3d0a512eaaf7, > /bp1add, "true"^^http://www.w3.org/2001/XMLSchema#boolean] > [-1bac0f47:15a5c92e655:-7fff, > http://www.w3.org/2001/vcard-rdf/3.0#NICKNAME, "mw"] > [http://mycompany.com/data/bp-2/b-7406478b-9c33-4b51-bb46-3b854fc633cd, > http://mycompany.com/data/bp-2/batch/batchNumber, > "1"^^http://www.w3.org/2001/XMLSchema#integer] > [http://mycompany.com/data/bp-2/b-7406478b-9c33-4b51-bb46-3b854fc633cd, > http://mycompany.com/data/bp-2/batch/persona, "FD"] > [http://mycompany.com/data/bp-2/b-7406478b-9c33-4b51-bb46-3b854fc633cd, > http://mycompany.com/data/bp-2/batch/companyIds, > 1d387ae6:15b01db5f1f:-7fff] [1d387ae6:15b01db5f1f:-7fff, > http://www.w3.org/1999/02/22-rdf-syntax-ns#first, > "136648473"^^http://www.w3.org/2001/XMLSchema#integer] > [1d387ae6:15b01db5f1f:-7fff, > http://www.w3.org/1999/02/22-rdf-syntax-ns#rest, > 1d387ae6:15b01db5f1f:-7ffe] [1d387ae6:15b01db5f1f:-7ffe, > http://www.w3.org/1999/02/22-rdf-syntax-ns#first, > "136648520"^^http://www.w3.org/2001/XMLSchema#integer] > [1d387ae6:15b01db5f1f:-7ffe, > http://www.w3.org/1999/02/22-rdf-syntax-ns#rest, > 1d387ae6:15b01db5f1f:-7ffd] [1d387ae6:15b01db5f1f:-7ffd, > http://www.w3.org/1999/02/22-rdf-syntax-ns#first, > "136648577"^^http://www.w3.org/2001/XMLSchema#integer] > [1d387ae6:15b01db5f1f:-7ffd, > http://www.w3.org/1999/02/22-rdf-syntax-ns#rest, > http://www.w3.org/1999/02/22-rdf-syntax-ns#nil]> >> > > -- Lorenz Bühmann AKSW group, University of Leipzig Group: http://aksw.org - semantic web research center
