I usually judge when it is becoming evil by the amount of method overridiing that has to be done. If you find yourself overridding nearly every method with functionality that is completely different to the parent then you are in an evil place. If however your method overriding is mainly introducing a bit of polymorphism and extending methods to handle extended structures in your object then I think you are in a good place.

Thats just a personal metric based on lazyness. I agree multiple inheritance is good and a nice way to package together your clasess.

not too sure bout delegation will need to check that oot sounds like it's just run time method dispatch


In reply to Re: Re: Re: Inheritance vs Delegation: pros and cons by hakkr
in thread Inheritance vs Delegation: pros and cons by bronto

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!
  • 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:
    & &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.