/* (non-Javadoc)
* @see org.apache.woden.wsdl20.extensions.soap.SOAPBindingExtensions#getSoapUnderlyingProtocol()
*/
public URI getSoapUnderlyingProtocol()
{
URIAttr protocol = (URIAttr) ((WSDLElement)getParent())
.getExtensionAttribute(SOAPConstants.Q_ATTR_SOAP_PROTOCOL);
return protocol != null ? protocol.getURI() : null;
}