virtual const XMLCh* getXMLID() const=0;
/**
+ * Returns the xml:lang property of the object, if any.
+ *
+ * @return an xml:lang value, or nullptr
+ */
+ virtual const XMLCh* getLang() const;
+
+ /**
* Returns the xsi:nil property of the object, or false if not set.
*
* @return the xsi:nil property