Package org.teamapps.commons.util

Klasse StreamUtil

java.lang.Object

org.teamapps.commons.util.StreamUtil

public class StreamUtil
extends Object

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
StreamUtil()

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
static <T> Predicate<T>	distinctByKey(Function<? super T,?> keyExtractor)	Use with Stream.filter(Predicate).
static <T, K, U> Collector<T,?,LinkedHashMap<K,U>>	toLinkedHashMap(Function<? super T,? extends K> keyMapper, Function<? super T,? extends U> valueMapper)

Von Klasse geerbte Methoden java.lang.Object

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

Konstruktordetails

StreamUtil

public StreamUtil()

Methodendetails

toLinkedHashMap

public static <T,
K,
U>
Collector<T,?,LinkedHashMap<K,U>> toLinkedHashMap(Function<? super T,? extends K> keyMapper,
 Function<? super T,? extends U> valueMapper)

distinctByKey

public static <T> Predicate<T> distinctByKey(Function<? super T,?> keyExtractor)

Use with Stream.filter(Predicate).

Example:

 
     record Person(String name) { }
     Stream.of(new Person("Joe"), new Person("Anna"), new Person("Joe"))
     		.filter(distinctByKey(Person::name))
     		.toList(); // Joe and Anna (each only once)