public int compare(WorkEntity work1, WorkEntity work2) {
if (work2 == null) {
throw new NullPointerException("Can't compare with null");
}
// Negate the result (Multiply it by -1) to reverse the order.
int comparison = work1.comparePublicationDate(work2) * -1;
if (comparison == 0) {
comparison = work1.compareTitles(work2);
if (comparison == 0) {
return work1.compareIds(work2);
}
}
return comparison;
}
