package org.codehaus.xfire.attachments;import javax.activation.DataHandler;/** * An attachment from a SOAP invocation. *  * @author <a href="mailto:dan@envoisolutions.com">Dan Diephouse</a> */public interface Attachment{    public DataHandler getDataHandler();    /**     * @return The attachment id.     */    public String getId();        public String getHeader(String name);        /**     * Whether or not this is an XOP package. This will affect the      * serialization of the attachment. If true, it will be serialized     * as binary data, and not Base64Binary.     *      * @return     */    public boolean isXOP();}