March
16
The article discusses the crooked way that the Singleton pattern is used in many software systems. I’ll admit it - I made this mistake many times.
If I have to choose one thing to take along from this article, it is that Singleton should not be applied freely on types which access is to be restricted to, but only for those rare cases which the type models a real world restricted object, like a class which encapsulates access to a configuration file or a queue.
Certainly, Singleton should not be applied to every stateless class, use static classes for that.
http://aabs.wordpress.com/2007/03/08/singleton-%e2%80%93-the-most-overused-pattern/
