return presentationCode; }
	public String getPresentationCode() {		if (presentationCode == null) {			final String code = getCode().toString();			if (getParentRoomClassification() == null) {				presentationCode = code;			} else {				final String parentCode = getParentRoomClassification().getPresentationCode();				presentationCode = StringAppender.append(parentCode, ".", code);			}		}		return presentationCode;	}