package rabbit.io;import java.net.InetAddress;/** An interface for a listener of asyncronous dns lookups. * * @author <a href="mailto:robo@khelekore.org">Robert Olofsson</a> */public interface InetAddressListener {    /** An dns lookup has completed.     * @param ia the InetAddress requested.     */    void lookupDone (InetAddress ia);    /** Lookup failed.     */    void unknownHost (Exception e);}