Sample Code:
#############################
package com.example.netage;
import com.complexible.stardog.api.Connection;
import com.complexible.stardog.api.ConnectionConfiguration;
import com.complexible.stardog.jena.SDJenaFactory;
import org.apache.jena.update.UpdateExecutionFactory;
import org.apache.jena.update.UpdateFactory;
public class App {
public static void main(String[] args) throws Exception {
try (Connection aConnection =
ConnectionConfiguration.to("insight").server("server")
.credentials("user", "pass").connect()) {
String query = "DELETE { Graph ?g {"
+ "?resultset <
http://vocab.resc.info/insight#organization> <
http://data.resc.info/data/stations/BrandweerAmsterdamAmstelland>}} WHERE
{ Graph ?g { "
+ "?resultset a <
http://data.resc.info/insight#Resultset> . "
+ "?resultset <
http://purl.org/dc/terms/identifier> \"00b36dabd8f846f6b53375abf5fe8ad9\"
. "
+ "}}";
UpdateExecutionFactory.create(UpdateFactory.create(query),
SDJenaFactory.createDataset(aConnection))
.execute();
}
}
}
#############################
Met Vriendelijke Groet / With Kind Regards
Bart van Leeuwen
twitter: @semanticfire
tel. +31(0)6-53182997
Netage B.V.
http://netage.nl
Esdoornstraat 3
3461ER Linschoten
The Netherlands
From: Andy Seaborne <[email protected]>
To: [email protected]
Date: 22-05-2018 17:20
Subject: Re: Update Query Parsing error
Bart - it does not like an issue with the update but somehow system
initialization has not happened.
Was there a log message as well?
How are you running the update? What's the application code look like?
Andy
On 22/05/18 14:24, Bart van Leeuwen wrote:
> Hi,
>
> On Jena 3.7.0
>
> The following the query ( which is accepted by Stardog on the console )
>
> DELETE { Graph ?g { ?resultset
> <http://vocab.resc.info/insight#organization>
> <http://data.resc.info/data/stations/BrandweerAmsterdamAmstelland>}}
> WHERE { Graph ?x {
> ?resultset a <http://data.resc.info/insight#Resultset> .
> ?resultset <http://purl.org/dc/terms/identifier>
> "00b36dabd8f846f6b53375abf5fe8ad9"
> }}
>
> causes the following error:
>
> Exception in thread "main" org.apache.jena.query.QueryException
> at
>
org.apache.jena.sparql.lang.ParserSPARQL11Update._parse(ParserSPARQL11Update.java:84)
>
> at
>
org.apache.jena.sparql.lang.ParserSPARQL11Update.parse$(ParserSPARQL11Update.java:40)
>
> at
> org.apache.jena.sparql.lang.UpdateParser.parse(UpdateParser.java:39)
> at
> org.apache.jena.update.UpdateFactory.make(UpdateFactory.java:87)
> at
> org.apache.jena.update.UpdateFactory.create(UpdateFactory.java:78)
> at
> org.apache.jena.update.UpdateFactory.create(UpdateFactory.java:56)
> at
> org.apache.jena.update.UpdateFactory.create(UpdateFactory.java:46)
> at com.complexible.stardog.examples.jena.App.main(App.java:90)
> Caused by: java.lang.NullPointerException
> at org.apache.jena.query.ARQ.isTrue(ARQ.java:650)
> at
> org.apache.jena.sparql.lang.ParserBase.<init>(ParserBase.java:292)
> at
>
org.apache.jena.sparql.lang.SPARQLParserBase.<init>(SPARQLParserBase.java:43)
>
> at
>
org.apache.jena.sparql.lang.sparql_11.SPARQLParser11Base.<init>(SPARQLParser11Base.java:22)
>
> at
>
org.apache.jena.sparql.lang.sparql_11.SPARQLParser11.<init>(SPARQLParser11.java:4974)
>
> at
>
org.apache.jena.sparql.lang.ParserSPARQL11Update._parse(ParserSPARQL11Update.java:57)
>
> ... 7 more
>
> Met Vriendelijke Groet / With Kind Regards
> Bart van Leeuwen
>
>
> twitter: @semanticfire
> tel. +31(0)6-53182997
> Netage B.V.
> http://netage.nl <http://netage.nl/>
> Esdoornstraat 3
> 3461ER Linschoten
> The Netherlands
