code: private String[] checkRealNames(final String[] names) {
  	if (names.length == 1) {
  	    if (names[0].equals(Tango_AllAttr)) {
  		final String[] real_names = new String[dev_attr.get_attr_nb()];
  		for (int i = 0; i < dev_attr.get_attr_nb(); i++) {
  		    real_names[i] = dev_attr.get_attr_by_ind(i).get_name();
  		}
  		return real_names;
  	    } else {
  		return names;
  	    }
  	} else {
  	    return names;
  	}
      }
docs: =========================================================================