@Test
public void testQueryWorks() {
ReconnectingDatasetGraph toQuery =
(ReconnectingDatasetGraph)
((Dataset) AssemblerUtils.build("basic.ttl", SDBConnect.TYPE)).asDatasetGraph();
toQuery.getDatasetGraph().getStore().getTableFormatter().format();
Dataset ds = DatasetImpl.wrap(toQuery);
// Dataset ds = new DatasetImpl(toQuery);
QueryExecution qe = QueryExecutionFactory.create("ASK { ?s ?p ?o }", ds);
assertTrue("Querying works", !qe.execAsk());
}
@Test
public void testFullQueryWorks() {
ReconnectingDatasetGraph toQuery =
(ReconnectingDatasetGraph)
((Dataset) AssemblerUtils.build("basic.ttl", SDBConnect.TYPE)).asDatasetGraph();
toQuery.getDatasetGraph().getStore().getTableFormatter().format();
Dataset ds = DatasetImpl.wrap(toQuery);
// Dataset ds = new DatasetImpl(toQuery);
QueryExecution qe = QueryExecutionFactory.create("SELECT * { ?s ?p ?o }", ds);
ResultSet r = qe.execSelect();
assertTrue("Querying works", !r.hasNext());
qe.close();
qe = QueryExecutionFactory.create("SELECT * { graph ?g { ?s ?p ?o } }", ds);
r = qe.execSelect();
assertTrue("Querying with named graphs works", !r.hasNext());
qe.close();
}
/**
* Wrap a {@link DatasetGraph} to make a dataset
*
* @param dataset DatasetGraph
* @return Dataset
* @deprecated Use {@link #wrap}
*/
@Deprecated
public static Dataset create(final DatasetGraph dataset) {
return DatasetImpl.wrap(dataset);
}
/**
* Wrap a {@link DatasetGraph} to make a dataset
*
* @param dataset DatasetGraph
* @return Dataset
*/
public static Dataset wrap(final DatasetGraph dataset) {
return DatasetImpl.wrap(dataset);
}