* @param elementLocalName the local name of the XML element this Object represents
* @param namespacePrefix the prefix for the given namespace
*/
protected RoleDescriptorImpl(String namespaceURI, String elementLocalName, String namespacePrefix) {
super(namespaceURI, elementLocalName, namespacePrefix);
unknownAttributes = new AttributeMap(this);
supportedProtocols = new ArrayList<String>();
contactPersons = new XMLObjectChildrenList<ContactPerson>(this);
keyDescriptors = new XMLObjectChildrenList<KeyDescriptor>(this);
}