Just so I can get some context, it seems the Yahoo! Maps API follows this route; the majority of the controls all follow the 5 main interfaces. Is that an example of a real-world usage scenario using what you describe below in a Flex context?
----- Original Message ----- From: "Roger Gonzalez" <[EMAIL PROTECTED]> To: <flexcoders@yahoogroups.com> Sent: Thursday, November 03, 2005 12:03 PM Subject: RE: helper object? what's that? (was Re: [flexcoders] To code-behind or not to code-behind?) See my previous reply for a concrete example. I just meant "an extra object that encapsulates a well defined piece of functionality, aggregated into your application". I wasn't alluding to any particular GoF-blessed pattern, but if you really need to get pedantic, the application is probably best described as using the bridge pattern. Helpers can be anything from flyweights to factories. I personally consider it bad mojo to have the application's implementation details exposed, so I abstract out pieces of functionality through interfaces, build helper classes that implement those interfaces, and only pass the interfaces around. This is a bit of leftover habit from keeping gigantic C++ apps from turning into dependency hairballs. An additional benefit is that you can then move those reusable bits off into RSLs, decoupling development. If you only change implementation code but keep the interface constant, you don't need to recompile clients of the interface. This sort of development has some small development overhead in extra interfaces and whatnot, but pays off as your code scales. -rg > -----Original Message----- > From: flexcoders@yahoogroups.com > [mailto:[EMAIL PROTECTED] On Behalf Of Douglas Knudsen > Sent: Thursday, November 03, 2005 8:13 AM > To: flexcoders@yahoogroups.com > Subject: Re: helper object? what's that? (was Re: > [flexcoders] To code-behind or not to code-behind?) > > Yeah, I understand the ViewHelper. The more generic 'helper object' > though I have not heard of. So, View Helper is a helper > obejct. So, say I have a Front Controller object that needs > some 'help', would I apply a Front Controller Helper object? > Obvioulsy this depends on the problem to solve, abstractly > though is this idea sound? I'm no master of patterns, but > sounds like the view helper may come from a larger parent > pattern called Helper or something. > > Does UK English really use "ain't"? lol! > > DK > > On 11/3/05, Steven Webster <[EMAIL PROTECTED]> wrote: > > > > Douglas, > > > > > Got me thinking though....in OOP terms just what is a > "helper object"? > > > I don't recall seeing these in say Java, or maybe they have a > > > different name. > > > > View Helper was one of the Core J2EE Patterns, that would > most usually > > have been implemented as a custom-tag in JSP. > > > > It's nothing magical, just a pattern to be aware you can refactor > > towards. Sometimes patterns make the simple sound magical. > But the > > View Helper ain't that. It's simple. > > > > Steven > > > > -- > > Steven Webster > > Practice Director (Rich Internet Applications) Macromedia > Consulting > > EMEA > > > > Office: + 44 (0) 131 338 6108 > > Mobile: +44 (0) 7917 428 947 > > > > > > > > -- > > Flexcoders Mailing List > > FAQ: > http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > > Search Archives: > > http://www.mail-archive.com/flexcoders%40yahoogroups.com > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > -- > Douglas Knudsen > http://www.cubicleman.com > this is my signature, like it? > > > ------------------------ Yahoo! Groups Sponsor > --------------------~--> Get Bzzzy! (real tools to help you > find a job). Welcome to the Sweet Life. > http://us.click.yahoo.com/A77XvD/vlQLAA/TtwFAA/nhFolB/TM > -------------------------------------------------------------- > ------~-> > > -- > Flexcoders Mailing List > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > Search Archives: > http://www.mail-archive.com/flexcoders%40yahoogroups.com > Yahoo! Groups Links > > > > > > > > -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links ------------------------ Yahoo! Groups Sponsor --------------------~--> Get Bzzzy! (real tools to help you find a job). Welcome to the Sweet Life. http://us.click.yahoo.com/A77XvD/vlQLAA/TtwFAA/nhFolB/TM --------------------------------------------------------------------~-> -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
