=head2 resultset
-Returns a resultset for the given source, by calling:
+Returns a resultset for the given source. This will initially be created
+on demand by calling
$self->resultset_class->new($self, $self->resultset_attributes)
+but is cached from then on unless resultset_class changes.
+
=head2 resultset_class
Set the class of the resultset, this is useful if you want to create your