Top Description Classes

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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

Modifier and Type	Class and Description
public class	BooleanComparator A `Comparator` for `Boolean` objects that can sort either true or false first.
public class	ComparableComparator< the type of objects compared by this comparator E extends Comparable<? super E>> A `Comparator` that compares `Comparable` objects.
public class	ComparatorChain< the type of objects compared by this comparator E> A ComparatorChain is a Comparator that wraps one or more Comparators in sequence.
public class	FixedOrderComparator< the type of objects compared by this comparator T> A Comparator which imposes a specific order on a specific set of Objects.
public class	NullComparator< the type of objects compared by this comparator E> A Comparator that will compare nulls to be either lower or higher than other objects.
public class	ReverseComparator< the type of objects compared by this comparator E> Reverses the order of another comparator by reversing the arguments to its `compare` method.
public class	TransformingComparator< the input type to the transformer I, the output type from the transformer O> Decorates another Comparator with transformation behavior.