Package org.omnifaces.utils

Class Comparators

java.lang.Object

org.omnifaces.utils.Comparators

public final class Comparators
extends Object

Method Summary

Modifier and Type	Method	Description
static <T> Comparator<T>	firstWhen(Predicate<? super T> predicate, Comparator<? super T> comparator)	Create a new Comparator that places values that match the given Predicate before values that do not.
static <T> Comparator<T>	lastWhen(Predicate<? super T> predicate, Comparator<? super T> comparator)	Create a new Comparator that places values that match the given Predicate after values that do not.

Methods inherited from class java.lang.Object

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

Method Detail

firstWhen

public static <T> Comparator<T> firstWhen(Predicate<? super T> predicate,
                                          Comparator<? super T> comparator)

Create a new Comparator that places values that match the given Predicate before values that do not. If either both values match the predicate or both do not match the predicate, the order is determined by the given comparator.

Type Parameters:

T - the type of the values

Parameters:

predicate - the predicate to use to sort the values

comparator - the comparator to use to sort any pairs of values that either both do or do not match the predicate

Returns:

the new comparator

lastWhen

public static <T> Comparator<T> lastWhen(Predicate<? super T> predicate,
                                         Comparator<? super T> comparator)

Create a new Comparator that places values that match the given Predicate after values that do not. If either both values match the predicate or both do not match the predicate, the order is determined by the given comparator.

Type Parameters:

T - the type of the values

Parameters:

predicate - the predicate to use to sort the values

comparator - the comparator to use to sort any pairs of values that either both do or do not match the predicate

Returns:

the new comparator