From: Sam Kong <sam.s.kong@...>
Date: 2006-03-23T01:53:51+09:00
Subject: Re: Is this a kind of design patterns?


Wilson Bilkovich wrote:
> That's the "Factory Method" pattern.  It's handy when you want
> SomeClass.new to return an instance of SomeOtherClass, or just when
> you want things to be easier to read.
>
> One of my favorite examples (I think this is a Martin Fowler trick) is:
> some_date = december(10,2006)

At first I thought so.
But the definition of "Factory Method Pattern" bothered me.
The definition of "Factory Method Pattern" is:

"Define an interface for creating an object, but let subclasses decide
which class to instantiate. Factory Method lets a class defer
instantiation to subclasses. "

However, in my Color example, there's no subclassing involved.
So the class itself is a factory as well as the product that the
factory makes.
Do you think that we can still call it "Factory Method Pattern"?

Sam