}
// need to parse orderings?
synchronized (this) {
if (_inMemOrdering == null) {
ExpressionFactory factory = new InMemoryExpressionFactory();
_inMemOrdering = _parser.eval(_exps[0].orderingClauses,
(ExpressionStoreQuery) q, factory, _meta);
}
if (_inMemOrdering == null)
_inMemOrdering = _exps[0].ordering;