Originally posted by Cameron W. McKenzie:
Use a singleton when you only need to have one instance running.
If you only need one instance, just create not more than one, that's my advice.
The Singleton pattern does more than ensuring the existance of just one instance:
- it puts that responsibilty inside the class itself (which means that it can't be reused in contexts where more instances would make sense), and
- it provides a global access point to that instance (with all the bad effects that globals have in general)
The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus