Sat, 18 Nov 2006 17:08:19 +0000
On 16 Nov 2006, at 01:35, Rick Duley wrote:
> My experience of Booch components is that they are subroutines
> rather than classes.
Even the Ada83 BCs were packages with private Container types and
relevant operations; sound like classes to me. The Ada95 BCs use
tagged types in their implementation but are still generics from the
user's point of view.
Of course Java containers tend to rely on everything being an Object,
which is much the same thing.
I don't use Java so don't know what it is that is OO about the
typical use you describe. I suppose if you have an abstract type that
provides basic functionality X (eg being a web server, or more likely
being an HTTP_Response) you can extend it to provide exactly what
your application needs. That's a powerful approach, don't know how
many of us have used it.