Microsoft's Singleton Example 1

[bernardmanning]

Hi, I've been looking at the singleton example as detailed on MS patterns and practice webpages ;

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnbda/html/observerpattern.asp

I've been looking at the .NET enhanced version of the singleton pattern and have a quick question.

The class looks this ;

sealed class SingletonCounter 
	{
	public static readonly SingletonCounter Instance = new SingletonCounter();
	
	private long Count = 0;
	
	private SingletonCounter(){} 
	
	public long NextValue() 
	{
		return ++Count;
	}
}

My question is this ;

What's the purpose of the line of code ?

private SingletonCounter(){}

Anybody shed any light on this?

Thanks, Bernard......

 

[bernardmanning]

it's the constructor for the class..isn't it?

<slaps head>

 

[chrissie1]

<slaps bernarmannings head some more>

Christiaan Baes
Belgium

I just like this --> [Wiggle] [Wiggle]

 

[monkeymeister]

Bernard,

So you've given up stand up now then for a career in software development?



Mike

 

[chiph]

it's the constructor for the class..isn't it?

More importantly - it's the Private instance constructor. So this means that no one can do a new on it -- they must go through the Instance member.

Chip H.


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