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Message:

Problems with Singletons and Static References

Posted by Tim W on February 22, 2002 at 10:47 AM

I'm trying to implement a class that uses a static method to return an instance of itself to the calling object. It's not precisely a singleton because it can also be instantiated via a call to a constructor.

I've gotten it to work more or less correctly, but I'm having trouble with methods in the instance that access non-static variables:

The pertinent code follows:

public class GeneManager {

private GeneManagerGUI gui;

private static GeneManager manager;
private static boolean initialized = false;

public GeneManager() {
this.manager = this;
initialized = true;
}