public void FilterByTypes()
{
// this is fairly ugly. if types has values we add an extra property
// RDF_TYPE to records during build, then filter out records of the
// wrong types here. finally, we strip away the RDF_TYPE property here.
if (_types.Count == 0)
{
return;
}
var recordKey = new List <string>(_records.Keys);
foreach (var uri in recordKey)
{
RecordImpl r = _records[uri];
if (!FilterByType(r))
{
_records.Remove(uri);
}
else
{
r.Remove(RDF_TYPE);
}
}
}
