package freenet.support;

import java.util.Enumeration;
import java.util.NoSuchElementException;

/** We kept remaking this everywhere so wtf.
  * @author tavin
  */
public final class LimitedEnumeration<T> implements Enumeration<T> {
	private T next;
    
    public LimitedEnumeration() {
        next = null;
    }

    public LimitedEnumeration(T loner) {
        next = loner;
    }
        
    public final boolean hasMoreElements() {
        return next != null;
    }
    
    public final T nextElement() {
        if (next == null) throw new NoSuchElementException();
        try {
            return next;
        }
        finally {
            next = null;
        }
    }
}