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Re: singleton usage [message #47609 is a reply to message #47604]

Tue, 21 February 2006 06:47

Antonio Santiago
Messages: 201
Registered: February 2004

Senior Member

vcarlos wrote:
> Hi Antonio,
>
> I saw the system variable singleton implementation, but what I am in
> doubt is about the usage of the pattern itself. Since everytime I need
> a reference to the singleton object in my objects I need to call a
> myObject = Singleton() statement, or initialize an attribute in every
> object needing a reference to the singleton. But what if I just create
> a read only system variable and use it over my whole program? (this
> variable would be an instance of my "singleton" class)
>
> Thanks
>
> Vinicius
>

Ok sorry, I don't understand you in the first email.
Yes, I think you can do it, but this is a convention that you use in
your program. Then you need to document very well that variable XXX is a
"reference" to a singleton object in your whole application.

--
-----------------------------------------------------
Antonio Santiago Pï¿½rez
( email: santiago<<at>>grahi.upc.edu )
( www: http://www.grahi.upc.edu/santiago )
( www: http://asantiago.blogsite.org )
-----------------------------------------------------
GRAHI - Grup de Recerca Aplicada en Hidrometeorologia
Universitat Politï¿½cnica de Catalunya
-----------------------------------------------------

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[Message index]

		Re: singleton usage By: JD Smith on Tue, 21 February 2006 10:28
		Re: singleton usage By: Antonio Santiago on Tue, 21 February 2006 06:47
		Re: singleton usage By: vcarlos on Tue, 21 February 2006 06:06
		Re: singleton usage By: Antonio Santiago on Tue, 21 February 2006 05:58

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