code: @Override
  	public String getDescription(final Object table, final Object entry) {
  		if (table instanceof TableWithNullOption && entry == null) {
  			return ((TableWithNullOption) table).getNullDescription();
  		} else if (entry instanceof TableEntry) {
  			return ((TableEntry) entry).getDesc();
  		}
  
  		return null;
  	}
docs: {@inheritDoc}