getNamespace() is needed for most elements
NSD validation must be done with respect to namespaces that are given by various attributes (lnNs, ldNs, dataNs, cdcNs, protNs). Therefore, getNamespace() should be available for most elements.
NSD validation must be done with respect to namespaces that are given by various attributes (lnNs, ldNs, dataNs, cdcNs, protNs). Therefore, getNamespace() should be available for most elements.