private static void TestConnectionCreationForTripleStore(LinqTripleStore ts1)
{
IRdfContext context = new RdfDataContext(ts1);
QueryFactory<Track> factory = new QueryFactory<Track>(ts1.QueryMethod, context);
IRdfQuery<Track> qry1 = context.ForType<Track>();
IRdfConnection<Track> rdfConnection = factory.CreateConnection(qry1);
Assert.IsNotNull(rdfConnection);
}
public void PersistToGraph1()
{
LinqTripleStore store = new LinqTripleStore(CreateMemoryStore());
Track t = new Track()
{
AlbumName = "Test Album",
ArtistName = "Some Artist",
Comment = "blah de blah",
GenreName = "Easy Listening",
InstanceUri = "http://example.org/music/someAlbum/tracks/1",
Title = "Track 1",
Rating = 5,
Year = "2010"
};
Assert.IsTrue(store.SupportsPersistence, "Persistence should be supported by in-memory stores");
String text = store.UpdateProcessor.GetSaveCommandText(t, "http://example.org/someGraph");
Console.WriteLine(text);
Assert.IsTrue(text.Contains("GRAPH <"), "Persistence Command should have contained a GRAPH clause");
store.UpdateProcessor.SaveObject(t, "http://example.org/someGraph");
RdfDataContext context = new RdfDataContext(store);
IQueryable<Track> qry = context.ForType<Track>();
IQueryable<Track> q = from x in qry
where x.ArtistName == "Some Artist"
select x;
Assert.IsTrue(q.Count() > 0, "Expected 1 or more results");
Assert.IsTrue(q.Count() == 1, "Expected only 1 result");
//Try setting Graph to non-existent Graph - should then throw an error
try
{
context.DefaultGraph = "http://example.org/noSuchGraph";
int count = q.Count();
Assert.Fail("Should have thrown an error as tried to query a non-existent Graph");
}
catch
{
Console.WriteLine("Errored as expected when a non-existent Graph was used");
}
//Try setting Graph to correct Graph, should then get the 1 result as expected
context.DefaultGraph = "http://example.org/someGraph";
Assert.IsTrue(q.Count() == 1, "Expected only 1 result");
}
public void TestGetAllTasks()
{
RdfDataContext ctx = new RdfDataContext(CreateSparqlTripleStore());
var q = (from t in ctx.ForType<Task>()
select t).ToArray().Distinct();
Assert.IsTrue(q.Count() == 12);
}
public void Query5()
{
TripleStore ts = CreateOnlineTripleStore();
var ctx = new RdfDataContext(ts);
IRdfQuery<Track> qry = ctx.ForType<Track>();
IQueryable<Track> q = from t in qry
where t.GenreName == "Rory Blyth: The Smartest Man in the World"
select t;
foreach (Track track in q)
{
track.Rating = 5;
}
ctx.SubmitChanges();
}