Question

I use a static enum in an interface and want to use it in an extending class.

I have following interfaces:

public interface StateSupport {
    public static enum State {
        NEW,
        UNCHANGED,
        UPDATED;
    }
}

and

public interface Support extends StateSupport  {
    public void do(Context arg0);
}

and finally a class

public class MyClassUtil implements Support {
    public void do(Context arg0){ 
        MyClass obj = new MyClass(NEW);
    }

}

The point is that I dont want to write “State.NEW”, just “NEW” 🙂

So how can it do that without using the enum name. Is there a way at all?

Answer 1

You can use a static import:

import static com.yourpackage.StateSupport.State.NEW;
import static com.yourpackage.StateSupport.State.UNCHANGED;
import static com.yourpackage.StateSupport.State.UPDATED;

or in short (discouraged):

import static com.yourpackage.StateSupport.State.*;