"Private" nested classes

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From: Etienne Boucher (etienne_at_novat.qc.ca)
Date: 07/29/04 

Date: Thu, 29 Jul 2004 00:29:28 -0400

Nested classes are usualy objects made to only live in their parent object
instance. In other words...

public class Outter
{
    public class Inner
    {
    }
}

Prevent being able to use "new Outter.Inner()", in Main for exemple, while
still being able to access the members of Inner.

This could be done with a public interface implemented in a private nested
class, or like this:

public class Outter
{
    private Inner i;

    public Outter()
    {
        new Inner(this);
    }

    public class Inner
    {
        private Outter o;

        public Inner(Outter o)
        {
            if (null != o.i)
                throw new Exception();
            o.i = this;
            this.o = o;
        }
    }
}

But that's not very clean. Any one can think of a better way?

Etienne Boucher

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