Re: What databases have taught me

Dmitry A. Kazakov wrote:
> On 23 Jun 2006 10:00:32 -0700, Aloha Kakuikanu wrote:
>
> > queisser wrote:
> >> Things like "devices" or "windows" or "customers" can be reasonable
> >> classes in a hierarchy but at the top level things are not as clear.
> >
> > I challenge the idea that customer is a usefull class. What kind of
> > methods does it have other than "getName" "setName" and alike?
>
> Cancel_Project

Order.cancel()? This is really about canceling a transaction. You have to study transaction management in order to implement this functionality correctly. Inheritance and polymorphish doesn't help here, sorry. Received on Fri Jun 23 2006 - 20:10:25 CEST