Hi,
Thank you very much for this. This is cool.
Sammi
Michael Schmalle wrote:
>
> Hi,
>
> You don't neccessarily 'have' to use 'C' ;-)
>
> All you need to do is understand what a 'singleton' pattern means and
> what bindable means.
>
> The principle of a model locator is simple. Create one object, create
> a public API for the one instance and store your data in the one
> instance while using data binding to dynamically update your public
> API as it changes.
>
> Note:
>
> if you have a TextArea;
>
> <mx:TextArea text="{MyLocator.getInstance().welcomText}" />
>
> and somwhere else in your app you set the locators public property;
>
> MyLocator.getInstance ().welcomText = "Hello World";
>
> Then you text is instantly updated. The same applies to the text
> EXCEPT, you need this in a change event from my testing if you are
> tracking someone typing text and don't explictly set the 'text'
> property of the TextArea.
>
> Here is the quasi class
>
> Class
> --------------------------------------------
> package my.package
> {
> [Bindable]
> public class MyLocator
> {
> private static var instance:MyLocator = null;
>
> /**
> * Returns the single instance.
> */
> public static function getInstance():MyLocator
> {
> if (!instance)
> instance = new MyLocator();
> return MyLocator;
> }
>
> public function MyLocator()
> {
> super();
> // you could throw an error here if instance is already crated
> // you could initialize things here
> }
>
> /**
> * This is automatically bindable since the bindable tag is a
> * above the class keyword.
> */
> public var welcomeText:String = "HelloWorld";
> }
> }
>
>
> Peace, Mike
>
> On 10/6/06, *Samúel Jónasson* <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
> Tom Chiverton wrote:
>
>> On Friday 06 October 2006 10:05, Samúel Jónasson wrote:
>>
>>> What is the recommended way? It is rather clumsy binding to
>>> Application.application and I also think it makes sense to store all the
>>> data in one place - not divide it in to multiple places.
>>>
>> Have you considered something like Cairngorn's ModelLocator singleton ?
>>
>>
> Hi,
>
> Actually I haven't looked at all into Cairngorn. I guess it
> exists for a reason and that I should look into it. I just wish
> they had come up with a better name for it. Not being able to
> pronounce it's name has kept me away :)
>
> Sammi
>
>
>
>
> --
> What goes up, does come down.
>
--
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