You're not misreading. But when I talk about introducing new types, I am specifically talking about adding new types to an existing set of polymorphic objects. The point is that as long as you are using a factory, you can usually add a new type to handle a new situation without having to change existing code. If you aren't using a factory, then you're going to have to change existing code too.
On 10/12/07, jalpino <[EMAIL PROTECTED]> wrote: > > > Maybe I misread the context of your example, I thought you > specifically talking about introducing new types into an existing code > base > > " ..The constructor is run on the User class, and I get an > instance back. > > Now imagine I have done this in 1000 places in my code. And now I > figure out > that this needs to change. For example, maybe I have two kinds of > users, > RegisteredUser and UnregisteredUser. hmmm....now I'm in trouble. .. " > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "CFCDev" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/cfcdev?hl=en -~----------~----~----~----~------~----~------~--~---
