Singleton in Action?
rontarrant at gmail.com
Mon Feb 4 10:21:18 UTC 2019
On Sunday, 3 February 2019 at 15:33:15 UTC, Russel Winder wrote:
> There is a lot of good stuff (both positive and negative) on
> Singleton here, but there is also a bit of prejudice and
> bigotry. Many of the links are worth looking through.
Thanks, Russell. I'll take a look.
> The good use case for Singleton is very rare, most people use
> them wrongly. It is all about eschewing all global state except
> when it is the one and only way of doing the design correctly.
> But then you have to use it correctly.
Yup. I've gone back and forth on usage, too. The cases I found
for a Singleton ten years ago may have better solutions today.
Like a command dispatcher, a configuration changes tracker, a
keyboard pre-processor, an undo/redo stack, and the application
> I currently have two Singletons in all my code, one I am trying
> to get rid of, the other is fair enough. I think, but I'd still
> like to get rid of it.
I'd be curious to hear what you have/will replace a singleton
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