/**
* Compares the given TimeInstant to this TimeInstant. This method implements the
* Comparable<TimeInstant> Interface
*
* @param anotherInstant : The TimeInstant to be compared to this TimeInstant
* @return: int: Returns a negative integer, zero, or a positive integer as this TimeInstant is
* before, at the same time, or after the given TimeInstant.
*/
public int compareTo(TimeInstant anotherInstant) {
long difference = this.getTimeInEpsilon() - anotherInstant.getTimeInEpsilon();
if (difference < 0) return -1;
if (difference > 0) return 1;
return 0;
}