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common Singleton Pattern implementation using Generic

, 5 Oct 2011
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All classes are naturally Lazy loaded.So a better implementation will be:public class Singletonwhere T: new(){ public static readonly T Instance = new T();}You will notice that before calling the singleton class, the object will not be loaded.Surely there are...
All classes are naturally Lazy loaded.
So a better implementation will be:
 
public class Singleton<T>
where T: new()
{
  public static readonly T Instance = new T();
}
 
You will notice that before calling the singleton class, the object will not be loaded.
Surely there are differences (as you may want to get the type without instantiating its inner items), but for a general purpose, it works.

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About the Author

Paulo Zemek
Architect
Canada Canada
I started to program computers when I was 11 years old, as a hobbist, programming in AMOS Basic and Blitz Basic for Amiga.
At 12 I had my first try with assembler, but it was too difficult at the time. Then, in the same year, I learned C and, after learning C, I was finally able to learn assembler (for Motorola 680x0).
Not sure, but probably between 12 and 13, I started to learn C++. I always programmed "in an object oriented way", but using function pointers instead of virtual methods.
 
At 15 I started to learn Pascal at school and to use Delphi. At 16 I started my first internship (using Delphi). At 18 I started to work professionally using C++ and since then I've developed my programming skills as a professional developer in C++ and C#, generally creating libraries that help other developers do they work easier, faster and with less errors.
 
Want more info or simply want to contact me?
Take a look at: http://paulozemek.azurewebsites.net/
Or e-mail me at: paulozemek@outlook.com
 
Codeproject MVP 2012
Microsoft MVP 2013

Comments and Discussions

 
GeneralClass static members are all loaded when the class is first ... PinmvpPaulo Zemek18-Oct-11 1:49 
Generalok so what's the Lazy in .Net 4 for? Pinmemberomid rezaei hanjani18-Oct-11 0:03 
ok
so what's the Lazy in .Net 4 for?

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