org.unix4j.util.sort

Class CompositeComparator<T>

java.lang.Object

org.unix4j.util.sort.CompositeComparator<T>

All Implemented Interfaces:

Comparator<T>

public final class CompositeComparator<T>
extends Object
implements Comparator<T>

A comparator based on a list of underlying comparators used in the specified order. If the first underlying comparator returns a value different from 0 indicating non-equality, the value is returned. If all underlying comparators return 0, this composite comparator returns 0.

Constructor Summary

Constructors

Constructor and Description
CompositeComparator(Comparator<? super T>... comparators) Constructs a comparator based on the specified underlying comparators.
CompositeComparator(Comparator<? super T> comparator1, Comparator<? super T> comparator2) Constructs a comparator based on the specified underlying comparators.
CompositeComparator(Comparator<? super T> comparator1, Comparator<? super T> comparator2, Comparator<? super T> comparator3) Constructs a comparator based on the specified underlying comparators.
CompositeComparator(List<Comparator<? super T>> comparators) Constructs a comparator based on the specified underlying comparators.

Method Summary

Modifier and Type	Method and Description
int	compare(T o1, T o2)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

CompositeComparator

public CompositeComparator(Comparator<? super T>... comparators)

Constructs a comparator based on the specified underlying comparators.

Parameters:

comparators - the underlying comparators

CompositeComparator

public CompositeComparator(Comparator<? super T> comparator1,
                           Comparator<? super T> comparator2)

Constructs a comparator based on the specified underlying comparators.

Parameters:

comparator1 - the first underlying comparators

comparator2 - the second underlying comparators

CompositeComparator

public CompositeComparator(Comparator<? super T> comparator1,
                           Comparator<? super T> comparator2,
                           Comparator<? super T> comparator3)

Constructs a comparator based on the specified underlying comparators.

Parameters:

comparator1 - the first underlying comparators

comparator2 - the second underlying comparators

comparator3 - the third underlying comparators

CompositeComparator

public CompositeComparator(List<Comparator<? super T>> comparators)

Constructs a comparator based on the specified underlying comparators.

Parameters:

comparators - the underlying comparators

Method Detail

compare

public int compare(T o1,
                   T o2)

Specified by:

compare in interface Comparator<T>