Sorry for the double post ---------- Forwarded message ---------- From: Matthieu Brucher <[EMAIL PROTECTED]> Date: 15 nov. 2007 23:38 Subject: Re: Python Design Patterns - composition vs. inheritance To: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
2007/11/15, [EMAIL PROTECTED] <[EMAIL PROTECTED]>: > > In learning about design patterns, I've seen discussion about using > inheritance when an object's relationship to another object is 'is-a' > and composition when the relationship is 'has-a'. Another way to express this is to say : - inheritance when you want to reuse an interface - compositon when you want to reuse the implementation IIRC this is the approach of Bruce Eckel. Matthieu -- French PhD student Website : http://miles.developpez.com/ Blogs : http://matt.eifelle.com and http://blog.developpez.com/?blog=92 LinkedIn : http://www.linkedin.com/in/matthieubrucher -- French PhD student Website : http://miles.developpez.com/ Blogs : http://matt.eifelle.com and http://blog.developpez.com/?blog=92 LinkedIn : http://www.linkedin.com/in/matthieubrucher
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