1. javax.xml.soap à saaj.jar

Interface SOAPElement

http://java.sun.com/j2ee/1.4/docs/api/javax/xml/soap/SOAPElement.html

This package is defined in the SOAP with Attachments API for JavaTM (SAAJ) 1.1 specification.

SOAPElement could be used as Element

Because

public interface SOAPElement

extends Node, Element

2. Using xsd:anyType to Represent XML Documents in a Service Interface: Design Details

https://bpcatalog.dev.java.net/nonav/soa/doc-anytype/design.html

public class PurchaseOrder {    

    private String poId;
    private Calendar createDate;
    private Address shipTo;
    private Address billTo;
    private LineItem[] items;   

    public PurchaseOrder() {}   

    public PurchaseOrder(String poId, Calendar createDate,
            Address shipTo, Address billTo, LineItem[] items) {

        this.poId = poId;
        this.shipTo = shipTo;
        this.createDate = createDate;
        this.billTo = billTo;
        this.items = items; 
    }

    ...

     public SOAPElement toXMLSOAPElement(boolean wrapper) {
        SOAPElement soapElem = null;
        try {
            //construct the DOM tree
            DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
            docBuilderFactory.setNamespaceAware(true);
            DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
            Document doc = docBuilder.newDocument();
            Element  poElem = doc.createElement("PurchaseOrder");
            if(wrapper){
                Element  docElem = doc.createElement("BusinessDocumentRequest");
                doc.appendChild(docElem);
                docElem.appendChild(poElem);
            } else{
                doc.appendChild(poElem);
            }
            Element  elem = doc.createElement("poId");
            elem.appendChild(doc.createTextNode(poId));
            poElem.appendChild(elem);
            elem = doc.createElement("createDate");
            elem.appendChild(doc.createTextNode((new SimpleDateFormat("MM-dd-yy")).format(createDate.getTime())));
            poElem.appendChild(elem);
            elem = doc.createElement("shipTo");
            poElem.appendChild(shipTo.toDOM(doc, elem));
            elem = doc.createElement("billTo");
            poElem.appendChild(billTo.toDOM(doc, elem));
            for(int i = 0; i < items.length; ++i){
                poElem.appendChild(items[i].toDOM(doc));
            }
           
            //create a SOAPElement
            SOAPElement parent = SOAPFactory.newInstance().createElement("dummy");
            TransformerFactory factory = TransformerFactory.newInstance();
            Transformer transformer = factory.newTransformer();
            transformer.transform(new DOMSource(doc), new DOMResult(parent));
            soapElem = (SOAPElement) parent.getChildElements().next();
        } catch(TransformerException te) {
            te.printStackTrace(System.err);
            throw new RuntimeException(te.getMessage(), te);
        } catch(ParserConfigurationException pce) {
            pce.printStackTrace(System.err);
            throw new RuntimeException(pce.getMessage(), pce);
        } catch(SOAPException se) {
            se.printStackTrace(System.err);
            throw new RuntimeException(se.getMessage(), se);
        }
        return soapElem;
}