this(Collections.emptyList(), unsortedIndices);
        }

        public List<Integer> getSortedOrder() {
            return sortedIndices;
        }

        public Collection<Integer> getUnsortedOrder() {
            return unsortedIndices;
        }
    }

    /**
     * Given a set of attributes, order those attributes based on the precedence defined by
     * this schema.
     *