@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 testUpdateWorks() { ReconnectingDatasetGraph toQuery = (ReconnectingDatasetGraph) ((Dataset) AssemblerUtils.build("basic.ttl", SDBConnect.TYPE)).asDatasetGraph(); toQuery.getDatasetGraph().getStore().getTableFormatter().format(); UpdateRequest ur = UpdateFactory.create("insert data { <http://example.com/> <http://example.com/prop> 1 }"); UpdateProcessor u = UpdateExecutionFactory.create(ur, toQuery); u.execute(); assertTrue("Update works", !toQuery.getDatasetGraph().isEmpty()); }
@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(); }
@Test public void testUnionWorks() { Dataset ds = (Dataset) AssemblerUtils.build("union.ttl", SDBConnect.TYPE); ReconnectingDatasetGraph toQuery = (ReconnectingDatasetGraph) ds.asDatasetGraph(); toQuery.getDatasetGraph().getStore().getTableFormatter().format(); UpdateRequest ur = UpdateFactory.create( "insert data {" + "graph <http://example.com/a> { <http://example.com/1> <http://example.com/prop> 1 }" + "graph <http://example.com/b> { <http://example.com/2> <http://example.com/prop> 2 }" + "}"); UpdateProcessor u = UpdateExecutionFactory.create(ur, toQuery); u.execute(); QueryExecution qe = QueryExecutionFactory.create("SELECT * { ?s ?p ?o }", ds); ResultSetRewindable r = ResultSetFactory.makeRewindable(qe.execSelect()); assertEquals("We have a union!", 2, r.size()); }