public static Identity createExtendedIdentifier(String namespaceUri, String namespacePrefix, String identifierName) {
		return createExtendedIdentifier(namespaceUri, namespacePrefix, identifierName, null, "");
	}
public static Identity createExtendedIdentifier ( String namespaceUri , String namespacePrefix , String identifierName ) { return createExtendedIdentifier ( namespaceUri , namespacePrefix , identifierName , null , "" ) ; }
Creates an Extended Identifier; uses an empty string for the administrativeDomain attribute and does not add an
attribute <i>name</i>.

@param namespaceUri
URI of the namespace of the inner XML of the Extended Identifier
@param namespacePrefix
prefix of the namespace of the inner XML of the Extended Identifier
@param identifierName
the name value of the Extended Identifier (will be the root node of the inner XML)
@return an {@link Identity} instance encapsulating the Extended Identifier