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. :)
You have moved into a dark place.
It is pitch black. You are likely to be eaten by a grue.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.