True, nobody called that a Singleton until half way threw AS2. I think I still don't use that word often enough. I often use something like "a global object to manage..." and that often suffices for people to understand how the implementation might have been done.
What's interesting with all this evolution of AS, is that, as it evolves real OOP terms are being used more and more in our everyday Flash vocabulary and that hence makes us look up those terms or simply make us remember of those terms which brings us to better implement our code. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of JesterXL Sent: October 29, 2005 12:48 PM To: Flashcoders mailing list Subject: Re: [Flashcoders] Newbie AS3 question I didn't know what a Singleton was until AS2 was well underway. ----- Original Message ----- From: "Frédéric v. Bochmann" <[EMAIL PROTECTED]> To: "'Flashcoders mailing list'" <flashcoders@chattyfig.figleaf.com> Sent: Saturday, October 29, 2005 12:32 PM Subject: RE: [Flashcoders] Newbie AS3 question (*Just looking back at the title of this Thread*) Just in case someone's wonders; creating a Singleton is nothing new in ActionScript, it can be done in AS1, AS2 or AS3. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Spike Sent: October 29, 2005 12:25 PM To: Flashcoders mailing list Subject: Re: [Flashcoders] Newbie AS3 question You're welcome! This has been an interesting thread and I've learned a bit more about ActionScript in the process :-) Spike On 10/29/05, JesterXL <[EMAIL PROTECTED]> wrote: > > That makes perfect sense and is a good reason. > > So, from this 2nd conversation, I've gleaned something else to add to the > list: > - getInstance() is a unspoken standard that implies the class is a > Singleton > used in other languages other than ActionScript > - getInstance() treats a class as a true class without static properties, > thus making it easier to go from Singleton to a true class without having > to > change a bunch of code, because all it really does is make 1, and only 1, > instance of itself. > > The thought of changing multiple lines of code to go from static to non > would really suck; that drives the point home for me. Thanks for taking > the > time to explain it Spike! > > ----- Original Message ----- > From: "Spike" <[EMAIL PROTECTED]> > To: "Flashcoders mailing list" <flashcoders@chattyfig.figleaf.com> > Sent: Saturday, October 29, 2005 12:05 PM > Subject: Re: [Flashcoders] Newbie AS3 question > > > It's not necessarily any better from an implementation point of view. You > can often do the same thing with a static class as you can with a > singleton. > > The big benefit comes if you need to change from singleton/static to > different instances for each invocation. > > If you have followed the static class approach you have static method > calls > all through your code that you will need to change if the class now needs > to > be non-static. > > If you have followed the singleton approach, you only need to change the > line of code that retrieves the instance inside the singleton. > > That's a pretty big benefit IMO. > > To get back to where we started all this, the original statement that > brought all this up was your suggestion that > > Foo.someMethod() > > was identical to > > Foo.getInstance().someMethod() > > Whether one is better than another is something that can be debated to > death, and often is on Java mailing lists, but hopefully you'll at least > agree that they are indeed doing different things. > > Spike > > On 10/29/05, JesterXL <[EMAIL PROTECTED]> wrote: > > > > I would have 20 static classes, not 20 if/then/switch statements. You'd > > have that same if/then statement in the getInstance() function, though, > to > > know which formatter to return. > > > > Again, I'm having a hard time seeing why getInstance is more appopriate > > than > > just making static classes, and how this applys to the Singleton > pattern. > > > > > > > _______________________________________________ > Flashcoders mailing list > Flashcoders@chattyfig.figleaf.com > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > _______________________________________________ > Flashcoders mailing list > Flashcoders@chattyfig.figleaf.com > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > -- -------------------------------------------- Stephen Milligan Do you do the Badger? http://www.yellowbadger.com Do you cfeclipse? http://www.cfeclipse.org _______________________________________________ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders _______________________________________________ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders _______________________________________________ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders _______________________________________________ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
