private int VerifyTupleKey([NotNull] IRow row)
{
Assert.NotNull(_tupleKeySet, "tuple keyset is null");
string errorMessage;
Tuple fkTuple = TryReadForeignKeyTuple(row, _foreignKeyFieldIndices,
_foreignKeyFieldTypes,
_referencedKeyFieldTypes,
_foreignKeyFields,
_referencedKeyFields,
out errorMessage);
if (fkTuple == null)
{
// unable to read the tuple
return(ReportError(errorMessage,
Codes[Code.UnableToConvertFieldValue],
null, row));
}
if (fkTuple.IsNull)
{
// the composite foreign key values are all null --> ok
return(NoError);
}
if (_referenceIsError)
{
return(_tupleKeySet.Contains(fkTuple)
? ReportUnallowedReference(row, fkTuple)
: NoError);
}
return(_tupleKeySet.Contains(fkTuple)
? NoError
: ReportMissingReference(row, fkTuple));
}
public void CanCheckTupleKeySetForNonExistingTuplesFastEnough()
{
ITupleKeySet keyset = CreateTupleKeySet(1000, 500);
Stopwatch watch = Stopwatch.StartNew();
const int containsCount = 10000;
for (int i = 0; i < containsCount; i++)
{
keyset.Contains(new Tuple("doesnotexist", "neither"));
}
watch.Stop();
Console.WriteLine(
@"Checking key set of {0:N0} string tuples {1:N0} times for Contains: {2:N0} ms",
keyset.Count, containsCount, watch.ElapsedMilliseconds);
Assert.IsTrue(watch.ElapsedMilliseconds < 1000, "too slow");
}