Polymorphism.
--- In flexcoders@yahoogroups.com, "Ryan Gravener" <[EMAIL PROTECTED]> wrote:
>
> Pseudo multiple inheritance.
>
> Ryan Gravener
> http://twitter.com/ryangravener
>
>
> On Fri, Oct 10, 2008 at 10:23 AM, Richard Rodseth <[EMAIL PROTECTED]>wrote:
>
> > And sometimes you even have interfaces with no methods. In this case
> > it's a "marker" (often a parent of other interfaces) and when used in method
> > signatures you get type checking.
> >
> >
> > On Fri, Oct 10, 2008 at 6:26 AM, Michael Schmalle <[EMAIL PROTECTED]
> > > wrote:
> >
> >> Hi,
> >> It's ICommand.
> >>
> >> The reason is you can stack interfaces on top of each other allowing more
> >> decoupling to the implementing concrete classes.
> >>
> >> This interface is obvious. Any class that implements it needs eval() and
> >> only eval. It's like a singleton declaration of implementation.
> >>
> >> If you jammed this evel() method into IUIComponent, maybe all components
> >> don't need eval. Make sense?
> >>
> >> Also another good example of this type of interface in the flex framework
> >> is IDataRenderer, it's only declared property is 'data'.
> >>
> >> Mike
> >>
> >> On Fri, Oct 10, 2008 at 9:19 AM, flexaustin <[EMAIL PROTECTED]>wrote:
> >>
> >>> I was wondering if someone can explain why you would need an interface
> >>> so short?
> >>>
> >>> INTERFACE:
> >>>
> >>> package my.package.area
> >>> {
> >>> /**
> >>> * Interface for methods that evaluate an object and return a result.
> >>> */
> >>> public interface IEval
> >>> {
> >>> /**
> >>> * Evaluates the input object
> >>> * @o the object to evaluate
> >>> * @return the computed result value
> >>> */
> >>> function eval(o:Object=null):*;
> >>>
> >>> } // end of interface IEval
> >>> }
> >>>
> >>> USAGE OF INTERFACE:
> >>>
> >>> if (value is IEval) { value = IEval(value).eval(o) };
> >>>
> >>> Cairngorm has a short interface like this as well, though I cannot
> >>> remember what it is. In Cairngorm they say its for naming or to make
> >>> the code easier to understand? I am just not sure why you would do
> >>> this? Help me see the light!
> >>>
> >>> TIA
> >>>
> >>>
> >>
> >>
> >> --
> >> Teoti Graphix, LLC
> >> http://www.teotigraphix.com
> >>
> >> Teoti Graphix Blog
> >> http://www.blog.teotigraphix.com
> >>
> >> You can find more by solving the problem then by 'asking the question'.
> >>
> >
> >
> >
>
