On 11/10/16 12:17 PM, Konstantin Kutsevalov wrote:
Hi, what is a correct (and simple) way to create an singleton?This is how I see that now: ``` class ApMessageRouter { static ApMessageRouter instance = null; private this() { } // for disable constructor to use from outside public ApMessageRouter getInstance() { if (this.instance is null) { this.instance = new ApMessageRouter(); } return this.instance; } } ``` Thank you.
There's a specific way to create a singleton that David Simcha outlined in a talk at dconf 2013, that avoids all the race condition issues that singletons traditionally have:
https://davesdprogramming.wordpress.com/2013/05/06/low-lock-singletons/ -Steve
