package org.jboss.book.jca.ex1.ra;import java.io.Serializable;import javax.naming.NamingException;import javax.naming.directory.DirContext;import javax.resource.Referenceable;/** * * @author  Scott.Stark@jboss.org * @version $Revision: 1.1 $ */public interface DirContextFactory     extends Referenceable,             Serializable{    public DirContext getConnection()         throws NamingException;}