org.molgenis.util.stream

Class MultimapCollectors

java.lang.Object

org.molgenis.util.stream.MultimapCollectors

public class MultimapCollectors
extends Object

Collectors that collect to Multimap.

See Also:

Collectors#toMap(Function, Function)}, the equivalent of which is not (yet?) present in guava for the {@link Multimap}.

Constructor Summary

Constructors

Constructor and Description
MultimapCollectors()

Method Summary

Modifier and Type	Method and Description
static <K,V,E> java.util.stream.Collector<E,com.google.common.collect.ArrayListMultimap<K,V>,com.google.common.collect.ArrayListMultimap<K,V>>	toArrayListMultimap(java.util.function.Function<E,K> keyGenerator, java.util.function.Function<E,V> valueGenerator)
static <K,V> java.util.stream.Collector<Map.Entry<K,V>,com.google.common.collect.LinkedHashMultimap<K,V>,com.google.common.collect.LinkedHashMultimap<K,V>>	toLinkedHashMultimap()
static <K,V,A extends com.google.common.collect.Multimap<K,V>> java.util.stream.Collector<Map.Entry<K,V>,A,A>	toMultimap(java.util.function.Supplier<A> supplier)
static <K,V,A extends com.google.common.collect.Multimap<K,V>,E> java.util.stream.Collector<E,A,A>	toMultimap(java.util.function.Supplier<A> supplier, java.util.function.Function<E,K> keyGenerator, java.util.function.Function<E,V> valueGenerator)

Methods inherited from class java.lang.Object

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

Constructor Detail

MultimapCollectors

public MultimapCollectors()

Method Detail

toArrayListMultimap

public static <K,V,E> java.util.stream.Collector<E,com.google.common.collect.ArrayListMultimap<K,V>,com.google.common.collect.ArrayListMultimap<K,V>> toArrayListMultimap(java.util.function.Function<E,K> keyGenerator,
                                                                                                                                                                          java.util.function.Function<E,V> valueGenerator)

toMultimap

public static <K,V,A extends com.google.common.collect.Multimap<K,V>,E> java.util.stream.Collector<E,A,A> toMultimap(java.util.function.Supplier<A> supplier,
                                                                                                                     java.util.function.Function<E,K> keyGenerator,
                                                                                                                     java.util.function.Function<E,V> valueGenerator)

toMultimap

public static <K,V,A extends com.google.common.collect.Multimap<K,V>> java.util.stream.Collector<Map.Entry<K,V>,A,A> toMultimap(java.util.function.Supplier<A> supplier)

toLinkedHashMultimap

public static <K,V> java.util.stream.Collector<Map.Entry<K,V>,com.google.common.collect.LinkedHashMultimap<K,V>,com.google.common.collect.LinkedHashMultimap<K,V>> toLinkedHashMultimap()