Package dev.aura.bungeechat.util

Class MapUtils

java.lang.Object

dev.aura.bungeechat.util.MapUtils

public class MapUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
MapUtils()

Method Summary

Modifier and Type	Method	Description
static <T,K,V> Collector<T,ImmutableMap.Builder<K,V>,ImmutableMap<K,V>>	immutableMapCollector(Function<? super T,? extends K> keyMapper, Function<? super T,? extends V> valueMapper)	A variant of Collectors.toMap(Function, Function) for immutable maps.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapUtils

public MapUtils()

Method Detail

immutableMapCollector

public static <T,K,V> Collector<T,ImmutableMap.Builder<K,V>,ImmutableMap<K,V>> immutableMapCollector(Function<? super T,? extends K> keyMapper,
                                                                                                                                         Function<? super T,? extends V> valueMapper)
                                                                                                                                  throws IllegalArgumentException

A variant of Collectors.toMap(Function, Function) for immutable maps.

Note this variant throws IllegalArgumentException upon duplicate keys, rather than IllegalStateException

Type Parameters:

T - type of the input elements

K - output type of the key mapping function

V - output type of the value mapping function

Parameters:

keyMapper - a mapping function to produce keys

valueMapper - a mapping function to produce values

Returns:

a Collector which collects elements into a Map whose keys and values are the result of applying mapping functions to the input elements

Throws:

IllegalArgumentException - upon duplicate keys