// remove those foos in a transaction
// Step 3a
result = graph.getRawGraph().query(new OSQLSynchQuery<ODocument>("select * from Foo where address = 'test1'"));
Assert.assertEquals(result.size(), 1);
// Step 4a
graph.removeVertex(graph.getVertex(result.get(0)));
// Step 3b
result = graph.getRawGraph().query(new OSQLSynchQuery<ODocument>("select * from Foo where address = 'test2'"));
Assert.assertEquals(result.size(), 1);
// Step 4b