@Override
public List<Literal> getDataPropertyValuesForIndividualByProperty(
String subjectUri, String propertyUri) {
log.debug("Data property value query string:\n" + DATA_PROPERTY_VALUE_QUERY_STRING);
log.debug("Data property value:\n" + dataPropertyValueQuery);
QuerySolutionMap initialBindings = new QuerySolutionMap();
initialBindings.add("subject", ResourceFactory.createResource(subjectUri));
initialBindings.add("property", ResourceFactory.createResource(propertyUri));
// Run the SPARQL query to get the properties
List<Literal> values = new ArrayList<Literal>();
DatasetWrapper w = dwf.getDatasetWrapper();
Dataset dataset = w.getDataset();
dataset.getLock().enterCriticalSection(Lock.READ);
try {
QueryExecution qexec =
QueryExecutionFactory.create(dataPropertyValueQuery, dataset, initialBindings);
ResultSet results = qexec.execSelect();
while (results.hasNext()) {
QuerySolution soln = results.next();
RDFNode node = soln.get("value");
if (!node.isLiteral()) {
continue;
}
Literal value = soln.getLiteral("value");
values.add(value);
}
} finally {
dataset.getLock().leaveCriticalSection();
w.close();
}
return values;
}
public Dataset getDataset() {
return dataset.getDataset();
}
