final public String toString() {
		switch(state) {
		case ACTIVE_STATE:
			return ACTIVE_STR;
		case INACTIVE_STATE:
			return INACTIVE_STR;
		case CREATED_STATE:
			return CREATED_STR;
		case ERROR_STATE:
			return ERROR_STR;
		case ANY_STATE:
			return ANY_STR;
		default:
			return NONE_STR;
		}
	}