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]>
