Also: SpringCore


Useful generic java.util.Comparator implementations, such as an invertible comparator and a compound comparator.


BooleanComparator A Comparator for Boolean objects that can sort either true or false first. 
ComparableComparator<T extends Comparable<T>> Comparator that adapts Comparables to the Comparator interface. 
CompoundComparator<T> A comparator that chains a sequence of one or more more Comparators. 
InvertibleComparator<T> A decorator for a comparator, with an "ascending" flag denoting whether comparison results should be treated in forward (standard ascending) order or flipped for reverse (descending) order. 
NullSafeComparator<T> A Comparator that will safely compare nulls to be lower or higher than other objects.