public IEnumerator <EventBean> GetEnumerator(Viewable parent)
{
if (!_prototype.IsHistoricalOnly)
{
return(ObtainEnumerator(parent));
}
ResultSetProcessorUtil.ClearAndAggregateUngrouped(_exprEvaluatorContext, _aggregationService, parent);
ArrayDeque <EventBean> deque = ResultSetProcessorUtil.EnumeratorToDeque(ObtainEnumerator(parent));
_aggregationService.ClearResults(_exprEvaluatorContext);
return(deque.GetEnumerator());
}