Opps meant to add: that's my interpretation anyways. I could be wrong. I'm wrong all the time. In fact I consider myself a professional mistake maker.
-erik -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Erik Bianchi Sent: Tuesday, January 30, 2007 1:49 PM To: 'Flashcoders mailing list' Subject: RE: [Flashcoders] Flair Pattern bad mixins good (?) A decorator is meant to be dynamic. It adds responsibilities to an object at run time. You take ComponentA and add methods to it on mouseclick, that's a decorator. ComponentB is made up of ComponentC and ClassA, that's a composite. My implementation of a mixin which I borrowed from java is really just using composites + interfaces to emulate multiple inheritance. Decorators and composites are similar however in that they are both structural patterns and define an interface for communicating between parent and "child" components / classes. Best, -erik -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of T. Michael Keesey Sent: Tuesday, January 30, 2007 9:00 AM To: Flashcoders mailing list Subject: Re: [Flashcoders] Flair Pattern bad mixins good (?) How is this any different from a Decorator/Wrapper? Looks like a double decorator. On 1/30/07, Erik Bianchi <[EMAIL PROTECTED]> wrote: > Actually my definition of a mixin is very strict compared to a decorator; it > uses design by contract, composition and declares type: > > Class ClassA implements IClassB, IClassC > { > > private var classB:ClassB; > private var classC:ClassC; > > private function classBMethod():Boolean{...}; > > private function classCMethod():Number{...}; > > } > > > -erik > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of T. Michael > Keesey > Sent: Tuesday, January 30, 2007 12:09 AM > To: Flashcoders mailing list > Subject: Re: [Flashcoders] Flair Pattern bad mixins good (?) > > On 1/29/07, David Ham <[EMAIL PROTECTED]> wrote: > > > > startObjectDrag triggered by obj_mc.onPress > > checkForSnap triggered by setInterval or onEnterFrame type of event, > > in this case onObjectDrag > > stopObjectDrag triggered by obj_mc.onRelease > > This looks more like the Broadcaster pattern or the Event Dispatcher > (a.k.a. Observer) pattern than Decorator. > > (Also, it might be better to tie checkForSnap to mouseMove.) > > Personally, I'm not a big fan of mix-ins because, well, they're kind > of sloppy. They involve tinkering with stuff that should be off-limits > (and is in AS3, I think). Using mix-ins, you could accidentally use a > non-function as a function. That can't happen if you stick to > strictly-typed programming. > -- > T. Michael Keesey > _______________________________________________ > [email protected] > To change your subscription options or search the archive: > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > Brought to you by Fig Leaf Software > Premier Authorized Adobe Consulting and Training > http://www.figleaf.com > http://training.figleaf.com > > > _______________________________________________ > [email protected] > To change your subscription options or search the archive: > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > Brought to you by Fig Leaf Software > Premier Authorized Adobe Consulting and Training > http://www.figleaf.com > http://training.figleaf.com > -- T. Michael Keesey Director of Technology Exopolis, Inc. 2894 Rowena Avenue Ste. B Los Angeles, California 90039 -- The Dinosauricon: http://dino.lm.com Parry & Carney: http://parryandcarney.com ISPN Forum: http://www.phylonames.org/forum/ _______________________________________________ [email protected] To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com _______________________________________________ [email protected] To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com _______________________________________________ [email protected] To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
