comma = true;
	public String getActions() {		if (actions == null) {			StringBuffer sb = new StringBuffer();			boolean comma = false;			if ((action_mask & ACTION_PROVIDE) == ACTION_PROVIDE) {				sb.append(PROVIDE);				comma = true;			}			if ((action_mask & ACTION_REQUIRE) == ACTION_REQUIRE) {				if (comma)					sb.append(',');				sb.append(REQUIRE);				comma = true;			}			if ((action_mask & ACTION_HOST) == ACTION_HOST) {				if (comma)					sb.append(',');				sb.append(HOST);			}			if ((action_mask & ACTION_FRAGMENT) == ACTION_FRAGMENT) {				if (comma)					sb.append(',');				sb.append(FRAGMENT);			}			actions = sb.toString();		}		return (actions);	}