myPort.setUsername("oe"); 
myPort.setPassword("oe"); 
String endPoint = myPort.getEndpoint(); 
xqueryws.proxy.Query_text xq_text = new Query_text();
xqueryws.proxy.Query xq = new Query(); 
xq_text.setType(xqueryws.proxy.Query_textType.XQUERY); xq_text.set_value("ora:view(\"PO_SL_BIX_TABLE\")/PurchaseOrder/Reference"); 
xq.setQuery_text(xq_text); 
System.out.println("Invoking the web service"); 
SOAPElement res = myPort.XMLFromQuery(xq); 
System.out.println("Done. You can now check your result with HTTP Analyzer.");

