public Element toXml(Document document) { final Element name = getName().toXml(document); final Element element = DomUtils.createElement( document, ELEMENT_CARDDAV_ADDRESS_DATA_TYPE, carddav(ELEMENT_CARDDAV_ADDRESS_DATA_TYPE)); DomUtils.setAttribute( element, ATTR_CALDAV_CONTENT_TYPE, carddav(ATTR_CALDAV_CONTENT_TYPE), CARD_MEDIA_TYPE); DomUtils.setAttribute(element, ATTR_CALDAV_VERSION, carddav(ATTR_CALDAV_VERSION), CARD_VERSION); name.appendChild(element); return name; }