return false;
}
public Object evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext)
{
RegexPartitionStateRandomAccess access = strategy.getAccess(exprEvaluatorContext);
EventBean substituteEvent = access.getPreviousEvent(assignedIndex);
if (substituteEvent == null)
{
return null;
}