According to your data it is in fact stored as RDFList. You could try to
call
obj.as( RDFList.class )
since RDFList is a subinterface of Resource.
But I can't tell anymore without seeing method findStatement()
> 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-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]>
>
>
--
Lorenz Bühmann
AKSW group, University of Leipzig
Group: http://aksw.org - semantic web research center
