@Override
public int compare(Sighting lhs, Sighting rhs) {
if (lhs.getTimestamp() == null && rhs.getTimestamp() == null) {
return 0;
}
if (lhs.getTimestamp() == null) {
return 1;
}
if (rhs.getTimestamp() == null) {
return -1;
}
int value = lhs.getTimestamp().compareTo(rhs.getTimestamp());
if (value >= 1) {
return -1;
}
if (value <= -1) {
return 1;
}
if (value == 0) {
return 0;
}
return value;
}
@Override
public int compare(Sighting lhs, Sighting rhs) {
if (lhs.getDistance() == -1 && rhs.getDistance() == -1) {
return 0;
}
if (lhs.getDistance() == -1) {
return 1;
}
if (rhs.getDistance() == -1) {
return -1;
}
float fistSighting = lhs.getDistance();
float secondSighting = rhs.getDistance();
if (fistSighting > secondSighting) {
return 1;
}
if (fistSighting < secondSighting) {
return -1;
}
if (fistSighting == secondSighting) {
return 0;
}
return 0;
}