final JaxbHibernateMapping.JaxbClass.JaxbDiscriminator discriminatorElement = entityElement().getDiscriminator();
if ( discriminatorElement == null ) {
return null;
}
return new DiscriminatorSource() {
@Override
public RelationalValueSource getDiscriminatorRelationalValueSource() {
if ( StringHelper.isNotEmpty( discriminatorElement.getColumnAttribute() ) ) {
return new ColumnAttributeSourceImpl(
null, // root table