How do you implement the Singleton design pattern?
1424 In 2008 I provided a C++98 implementation of the Singleton design pattern that is lazy-evaluated, guaranteed-destruction, not-technically-thread-safe: Can any one provide me a sample of Singleton …
On design patterns: When should I use the singleton?
The glorified global variable - becomes a gloried global class. Some say breaking object-oriented design. Give me scenarios, other than the good old logger where it makes sense to use the singleton.
What are the real world applications of the singleton pattern?
Apr 9, 2009 · Simple. What does a singleton do? It provides global access to an instance of an object, and It guarantees that no more than one instance of that type can ever be created. So you use a …
What is the best way of implementing a singleton in Python?
Jun 10, 2020 · This question is not for the discussion of whether or not the singleton design pattern is desirable, is an anti-pattern, or for any religious wars, but to discuss how this pattern is best …
.net - What is a singleton in C#? - Stack Overflow
Jan 28, 2010 · A singleton is a class which only allows one instance of itself to be created - and gives simple, easy access to said instance. The singleton premise is a pattern across software …
What is an efficient way to implement a singleton pattern in Java ...
Sep 16, 2008 · This is useful when your singleton needs to inherit from a superclass. You cannot use the enum singleton pattern in this case, since enums cannot have a superclass (they can implement …
What are drawbacks or disadvantages of singleton pattern?
The singleton pattern is a fully paid up member of the GoF 's patterns book, but it lately seems rather orphaned by the developer world. I still use quite a lot of singletons, especially for factory classes, …
Why is Singleton considered an anti-pattern? - Stack Overflow
I've heard recently that Singleton is an anti-pattern. I know it has to do with the fact making a class singleton is like making that unique instance a global variable, but it's also doing a lot more than that …
What is the best way to implement Singleton Design Pattern in C# with ...
May 25, 2010 · Please let me know what the best way to implement Singleton Design Pattern in C# with performance constraint?
Why do I need the Singleton design pattern? - Stack Overflow
Oct 11, 2016 · The Singleton Pattern is the officially-recognized way of doing something akin to global variables in modern, OOP languages. This prevents global variable name conflicts and so forth since …