On 7/10/07, Tom Chiverton <[EMAIL PROTECTED]> wrote:
> It has createObject(), which can make things with properties and methods -
> therefore it has objects, therefore it's OO.
That just makes it object-based. However, it has inheritance,
polymorphism (because it has dynamic dispatch via inheritance) and
encapsulation (public / private data & methods). That is what makes it
OO.
> A no brainer 'yes' as the question is just 'do you want ColdFusion to have
> more features'. It does not say 'at the expense of non-OO features (like
> cfprint)', which would be far less likely to get a positive response.
Yes, which was partly why I said the survey was loaded...
> CF already has overloading (don't give cfargument a type parameter, or leave
> out cfargument all together) - so I'd love to hear from people who plumbed
> for that one :-)
Technically that's not overloading. Overloading is specifically
multiple functions with the same name. Overload resolution - the
process of figuring out the best match function to call - is a complex
algorithm that you cannot reasonably implement at runtime without a
big performance hit.
> I went for Constructors myself, as all we've got is a sort of half-baked
> almost by accident convention.
Constructors are just methods with a name determined by convention.
Not all languages name them to match the class name. The only general
benefit of "built-in" constructors is that there is usually some
shorthand in the syntax for constructing objects:
new Some.Type(args)
rather than:
new("Some.Type").init(args)
And, as I point out at every opportunity, when CF deals with Java, it
uses init() as a way to call Java's constructors (which are just
methods with specific names!).
> > Multiple Inheritance: 2%
> You do not want this. It's the wrong solution to composition.
Well, actually there are situations where multiple inheritance is a
very elegant solution - in a statically typed language. However,
dynamic languages tend to solve this using runtime mixins instead -
which is the "correct" elegant solution for dynamically typed
languages.
--
Sean A Corfield -- (904) 302-SEAN
An Architect's View -- http://corfield.org/
"If you're not annoying somebody, you're not really alive."
-- Margaret Atwood
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