code: public RatingValuesMap getAllRatings(Reference reference) {
  		return getResourceFactory().getApiResource(
  				"/rating/" + reference.toURLFragment()).get(
  				RatingValuesMap.class);
  	}
docs: Returns all the ratings for the given object. It will only return the
  ratings that are enabled for the object.
  
  @param reference
  The reference to the object to get ratings for
  @return The map of rating types and their values