compareTo method

@override int compareTo(AbstractDate<T> 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(AbstractDate<T> other) {
  if (year > other.year) return 1;
  if (year < other.year) return -1;

  if (month > other.month) return 1;
  if (month < other.month) return -1;

  if (day > other.day) return 1;
  if (day < other.day) return -1;

  return 0;
}