Just a little error in the first code, it's not :
if (_oInstance == null)
but :
if (_oInstance != null)
I think you have rectify by yourself ;)
> That is nice, I like how you can assign functions to compile time
> variables.
>
> On 7/9/06, Cédric Néhémie <[EMAIL PROTECTED]> wrote:
>>
>> Hi,
>>
>> I've trying to create singleton, and the best way i've fund is to create
>> the instance direcly in the class declaration
>>
>> private static var _oInstance:MyClass = getInstance();
>>
>> And to check if constructor is called in code I do that :
>>
>> public function MyClass ()
>> {
>> if (_oInstance == null)
>> throw new IllegalOperationError ("MyClass is a singleton, and an
>> instance allready exist. Use getInstance to get a reference to the
>> instance");
>> }
>>
>> In that way an instance is automatically created and every call of the
>> constructor will throw an error. If you don't want to have an instance
>> at start, but only when getInstance is called it's a bit less proper :
>>
>> private static var _bInstanciable:Boolean = false;
>> private static var _oInstance:MyClass;
>>
>> public function MyClass ()
>> {
>> if(!_bInstanciable)
>> throw new IllegalOperationError ("MyClass is a singleton, and an
>> instance allready exist. Use getInstance to get a reference to the
>> instance");
>> }
>> public static function getInstance ():MyClass
>> {
>> if(_oInstance == null)
>> {
>> _bInstanciable = true;
>> _oInstance = new MyClass();
>> _bInstanciable = false;
>> }
>> return _oInstance;
>> }
>> > Hi,
>> >
>> > This might be old stuff but I missed it completely ... I was wondering
>> if
>> > somebody can tell me the rationale about that constructors in AS3.0
>> must
>> be
>> > public and what happens to Singletons in AS3.0?
>> >
>> > Thanks,
>> > Sascha
>> >
>> >
>> >
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>> >
>> >
>>
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> _______________________________________________
> [email protected]
> To change your subscription options or search the archive:
> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
>
> Brought to you by Fig Leaf Software
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> http://training.figleaf.com
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>
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