6 May
2005
6 May
'05
5:53 a.m.
Date: Fri, 06 May 2005 01:30:39 -0400 From: Kenny Tilton ktilton@nyc.rr.com
(defmodel ticker (model) ((ticker-sym :cell nil :initarg :ticker-sym :reader ticker-sym)
;; not a cell because I forgot that issues can change their ticker symbols <--Kenny
;; Not during a trading day. Because of 23.75 hour trading days, symbol changes ;; only occur on Friday afternoons. The index basket setup on Sunday is valid ;; thru the week. So should it be a cell then?
Your call. Simple issue: will a stock change symbol during the run of the application?
No. Especially no in this tutorial code. If I understand correctly, then there is no need to make this a cell.
Ron