Mike, Which UDF is it, that you like?
Tyler -----Original Message----- From: Mike Brunt [mailto:[EMAIL PROTECTED] Sent: Thursday, September 04, 2003 4:05 PM To: CF-Talk Subject: RE: RE: CFC/Object Best Practice Ian, I may have said this already but just in case. It really is worth taking a look at the Mach II Framework and sample apps. They do give a good insight into all this and there is a UDF which is also useful. You can find them here : - http://www.mach-ii.com Hth Kind Regards - Mike Brunt Original Message ----------------------- Thanks, I've got a pretty good handle on inheritance (a Porsche IS A car) ... using cfcomponent extends. What I'm looking for is how one might code other types of relationships such as (a car HAS A engine). What might the cfc code look like to accomplish this? Thanks for the link, looks like a good one, I'm going to read through it now. -------------- Ian Skinner Web Programmer BloodSource Sacramento, CA -----Original Message----- From: Joe Eugene [mailto:[EMAIL PROTECTED] Sent: Thursday, September 04, 2003 9:17 AM To: CF-Talk Subject: Re: CFC/Object Best Practice > And how would this look in the code of a CFC? <cfcomponent extends="MyParentComponent"> You use the the "extends" to Inherit Instance variables from your parent CFC to Your Sub CFC. Your might want to read http://livedocs.macromedia.com/coldfusion/6.1/htmldocs/buildi52.htm > (designing them is another story). To Design Blue Prints for Objects Or Classes (OOD), you need to have a good understanding of your application model. Joe Eugene ----- Original Message ----- From: "Ian Skinner" <[EMAIL PROTECTED]> To: "CF-Talk" <[EMAIL PROTECTED]> Sent: Thursday, September 04, 2003 11:14 AM Subject: RE: CFC/Object Best Practice > >> practice to code this relationship in an CFC. How would the car code > send > >> and receive messages to the engine code? > > >Objects talk to each other by invoking their instance methods. > > And how would this look in the code of a CFC? > > >I think you might be trying real hard to apply inheritance above (Car - > >Engine), > >to me this is more of abstraction - divide and conquer... not really > >inheritance. > > Exactly, I have a pretty good idea of how to code and use inheritance > (designing them is another story). My example was supposed to be an example > of relationship that WAS NOT inheritance, and how would one code cfc's for > this relationship? > > -------------- > Ian Skinner > Web Programmer > BloodSource > Sacramento, CA > > > -----Original Message----- > From: Joe Eugene [mailto:[EMAIL PROTECTED] > Sent: Thursday, September 04, 2003 8:01 AM > To: CF-Talk > Subject: Re: CFC/Object Best Practice > > > > practice to code this relationship in an CFC. How would the car code send > > and receive messages to the engine code? > > Objects talk to each other by invoking their instance methods. > > > themselves). Anyway, using the ever present car object example. You have > a > > car class/object that contains an engine class/object > > I think you might be trying real hard to apply inheritance above(Car - > Engine), > to me this is more of abstraction - divide and conquer... not really > inheritance. > > An example of Inheritance would be some like > > Dog > - Hunting dog > - Pet dog > > Both Hunting dog and Pet dog inherit the properties of DOG...(ie all Dogs > have 4 legs, 2 eyes, nose etc) > while Hunting dog itself has the extensive properties/features of a Hunting > Dog(vigilant ...) > > Joe Eugene > > ----- Original Message ----- > From: "Ian Skinner" <[EMAIL PROTECTED]> > To: "CF-Talk" <[EMAIL PROTECTED]> > Sent: Thursday, September 04, 2003 10:42 AM > Subject: CFC/Object Best Practice > > > > Ok, I think I have a pretty good handle on how to code inheritance with > > CFC's, but I'm not so sure how you do aggregation and/or composition > (still > > learning the concepts of Object orientated programming as well as cfc's > > themselves). Anyway, using the ever present car object example. You have > a > > car class/object that contains an engine class/object. What is the best > > practice to code this relationship in an CFC. How would the car code send > > and receive messages to the engine code? > > > > Thanks > > > > -------------- > > Ian Skinner > > Web Programmer > > BloodSource > > Sacramento, CA > > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/lists.cfm?link=t:4 Subscription: http://www.houseoffusion.com/lists.cfm?link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Get the mailserver that powers this list at http://www.coolfusion.com
