Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
Heh ... thanks! Really what was bothering me was a statement I've read over and over in texts that deal with Object-Oriented programming (but not about using it in any particular language) which was:
A subclass shouldn't need to know anything about its parent's implementation, and the parent shouldn't need to know anything about a child's implementation

Or something along those lines. And while I was experimenting by trying to create a very generic "person" object (which could then become person::client, person::employee, person::vendor etc) I realized that I would end up violating both of those ideas by storing data inside a hash-ref as object

If I had been working on this for a paid project I would have just plowed forward as I'd be the one writting the subclasses anyway ...

However, since this was a learning experience, I was annoyed by the idea of 'cheating' and figured there had to be a way. I had once seen (here on perlmonks) using braces around a subroutine { $var; sub { ... }} to keep a variable alive between calls to the subroutine and used that in figuring out what I did.

I think after I read/learn Abigails implementation -- which I have no doubts is much more refined then my Saturday afternoon of hacking around -- I would likely use this as my default OO style.

theAcolyte


In reply to Re^2: Why is a hash the default "object" in oo perl? by theAcolyte
in thread Why is a hash the default "object" in oo perl? by theAcolyte

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • 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, 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, 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:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others rifling through the Monastery: (9)
    As of 2015-07-02 05:41 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (29 votes), past polls