public void StorageStardogTransactionTest()
{
StardogConnector stardog = StardogTests.GetConnection();
stardog.Begin();
stardog.Commit();
stardog.Dispose();
}
public void StorageStardogTransactionTest()
{
try
{
Options.HttpDebugging = true;
StardogConnector stardog = StardogTests.GetConnection();;
stardog.Begin();
stardog.Commit();
stardog.Dispose();
}
finally
{
Options.HttpDebugging = false;
}
}
public void StorageStardogSparqlUpdate5()
{
StardogConnector stardog = StardogTests.GetConnection();
IGraph g;
// Begin a transaction
stardog.Begin();
// Try to make an update
stardog.Update(
"DROP SILENT GRAPH <http://example.org/stardog/update/5>; INSERT DATA { GRAPH <http://example.org/stardog/update/5> { <http://x> <http://y> <http://z> } }");
// Rollback the transaction
stardog.Rollback();
g = new Graph();
stardog.LoadGraph(g, "http://example.org/stardog/update/5");
Assert.False(g.IsEmpty, "Graph should not be empty after update");
Assert.Equal(1, g.Triples.Count);
stardog.Dispose();
}
/// <summary>
/// Execute insert or delete SPARQL queries against Stardog;
/// separate multiple statements with a semicolon
/// </summary>
/// <param name="command"></param>
/// <returns></returns>
public static bool Update(string command)
{
using (StardogConnector dog = new StardogConnector(ConnectionString(), ConnectionDatabase(), ConnectionUser(), ConnectionPassword()))
{
try
{
dog.Begin(); // wrap all the statements in this command into one transaction; otherwise stardog will run them as separate transactions
GenericUpdateProcessor processor = new GenericUpdateProcessor(dog);
SparqlUpdateParser parser = new SparqlUpdateParser();
processor.ProcessCommandSet(parser.ParseFromString(Prefixes() + command));
dog.Commit();
return true;
}
catch (Exception err)
{
try
{
dog.Rollback();
}
catch { }
throw err;
}
}
}
