return value as an XML document

[Ghershony, Arie]

Hi,
Can any one tell me why do I receive the following error while compling:"
Incompatible types found:
org.w3c.dom.Element
required: java.lang.String
   return result
           ^

1 error.

This is the relevant code:

import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import org.apache.axis.message.SOAPEnvelope;
import org.apache.axis.message.SOAPBodyElement;
import org.apache.axis.utils.XMLUtils;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

... some code here

it works when I am using command line argument:
public static void main(String [] args) throws Exception {

but not if I pass a String array to a function: 

public String getBattleService(String[] uniqb) throws Exception {

        DocumentBuilderFactory documentBuilderFactory = null;
         DocumentBuilder  parser                 = null;

      // We need a namespace-aware parser
      documentBuilderFactory = DocumentBuilderFactory.newInstance();
      documentBuilderFactory.setNamespaceAware(true);
      parser = documentBuilderFactory.newDocumentBuilder();

      // We create the document for the request (the XML document that will 
      // be embedded inside the SOAP body).
      Document document = parser.newDocument();
      Element  element  = document.getDocumentElement();

      // The <portfolio/> element is the root of our document;
      Element requestElement = document.createElementNS(nameSpaceURI, 
                                                        orderbattleTag);
     // Element command        = document.createElement(args[0]);
        Element command        = document.createElement(uniqb[0]);
      requestElement.appendChild(command);

      // We add the list of ticker symbols
      for(int index = 1; index < uniqb.length; index++) {
        Element ticker = document.createElement(tickerTag);

       // ticker.appendChild(document.createTextNode(args[index]));
        ticker.appendChild(document.createTextNode(uniqb[index]));
      command.appendChild(ticker);
      }

      // Unless the command is a get, we add the get command
      if(!uniqb.equals(getCommand)) {
        requestElement.appendChild(document.createElement(getCommand));
      }

      Element result = null;
      boolean local  = false;  // set to true for local test (inproc)

      if(local) {
        // Local test, no SOAP
        result = orderbattle(requestElement, 
                (Element)requestElement.cloneNode(true));
      } else {
        // We create a SOAP request to submit the XML document to the

           // server. You might need to replace the following URL with what
is 
        // suitable for your environment
                 "http://localhost:8080/axis/servlet/AxisServlet";;
        Service service     = new Service();
        Call    call        = (Call)service.createCall();

        // Create a SOAP envelope to wrap the newly formed document
        SOAPEnvelope    requestEnvelope = new SOAPEnvelope();
        SOAPBodyElement requestBody     = 
                                        new SOAPBodyElement(requestElement);
        requestEnvelope.addBodyElement(requestBody);

        // Set the endpoint URL (address we are talking to) and method name
        call.setTargetEndpointAddress(new URL(endpointURL));
        call.setSOAPActionURI(orderbattleTag); // method name = tag name

        // Submit the document to the remote server
        SOAPEnvelope responseEnvelope = call.invoke(requestEnvelope);

        // Get the <orderbattle/> element from the response
        SOAPBodyElement responseBody =
          (SOAPBodyElement)responseEnvelope.getBodyElements().get(0);
        result = responseBody.getAsDOM();
      }
        return result; 
         }
  }


Thanks,
Arie