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Re: Re: Re: A new take on affordance.

by Dog and Pony (Priest)
on May 18, 2002 at 14:38 UTC ( #167509=note: print w/ replies, xml ) Need Help??


in reply to Re: Re: A new take on affordance.
in thread A new take on affordance.

In the third edition of the Camel book, it is to be found on page 339, Using Closures for Private Objects in chapter 12, Objects.

I didn't personally look into it, but the authors of that book seems to think this method is a bit more secure than that...

Perl offers low-level building blocks that you can use to surround your class and its objects with an impenetrable privacy shield - one stronger, in fact, than that found in many popular object-oriented languages.
and
This is a very strong from of encapsulation; not only is it proof against external tampering, even other methods in the same class must use the proper access methods...
What they are talking about is using a closure as the object itself, and they proceed to give some examples. Like I said, I didn't investigate, so those claims will have to stand for the authors themselves... *grin*. I'd say they should know, though. :)


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