compareTo method

@override int compareTo(Principal other)

Compares this object to another object.

Returns a value like a Comparator when comparing this to other. That is, it returns a negative integer if this is ordered before other, a positive integer if this is ordered after other, and zero if this and other are ordered together.

The other argument must be a value that is comparable to this object.

Implementation

@override
int compareTo(Principal other) {
  for (int i = 0; i < _principal.length && i < other._principal.length; i++) {
    if (_principal[i] != other._principal[i]) {
      return _principal[i].compareTo(other._principal[i]);
    }
  }
  return _principal.length.compareTo(other._principal.length);
}