Package org.apache.commons.collections4.comparators
This package contains implementations of the
 
Comparator interface.
 
 You may also consider using
 ComparatorUtils,
 which is a single class that uses static methods to construct instances
 of the classes in this package.
- 
Class Summary Class Description BooleanComparator AComparatorforBooleanobjects that can sort either true or false first.ComparableComparator<E extends java.lang.Comparable<? super E>> AComparatorthat comparesComparableobjects.ComparatorChain<E> A ComparatorChain is a Comparator that wraps one or more Comparators in sequence.FixedOrderComparator<T> A Comparator which imposes a specific order on a specific set of Objects.NullComparator<E> A Comparator that will compare nulls to be either lower or higher than other objects.ReverseComparator<E> Reverses the order of another comparator by reversing the arguments to itscomparemethod.TransformingComparator<I,O> Decorates another Comparator with transformation behavior. - 
Enum Summary Enum Description FixedOrderComparator.UnknownObjectBehavior Unknown object behavior enum.