org.conqat.lib.commons.collections

Class SetMapCollector<T,K,V>

java.lang.Object

org.conqat.lib.commons.collections.SetMapCollector<T,K,V>

All Implemented Interfaces:

java.util.stream.Collector<T,SetMap<K,V>,SetMap<K,V>>

public class SetMapCollector<T,K,V>
extends java.lang.Object
implements java.util.stream.Collector<T,SetMap<K,V>,SetMap<K,V>>

A stream Collector type to create SetMaps.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.stream.Collector

java.util.stream.Collector.Characteristics

Constructor Summary

Constructors

Constructor and Description
SetMapCollector(java.util.function.Function<T,K> keyMapper, java.util.function.Function<T,V> valueMapper)

Method Summary

Modifier and Type	Method and Description
java.util.function.BiConsumer<SetMap<K,V>,T>	accumulator()
java.util.Set<java.util.stream.Collector.Characteristics>	characteristics()
static <T,K,V> SetMapCollector<T,K,V>	collect(java.util.function.Function<T,K> keyMapper, java.util.function.Function<T,V> valueMapper) Collects the stream into a new SetMap where stream objects are mapped to SetMap keys by the given keyMapper and to SetMap values by the given valueMapper.
java.util.function.BinaryOperator<SetMap<K,V>>	combiner()
java.util.function.Function<SetMap<K,V>,SetMap<K,V>>	finisher()
static <T,K> SetMapCollector<T,K,T>	groupingBy(java.util.function.Function<T,K> keyMapper) Collects the stream into a new SetMap, grouping stream objects by the given keyMapper.
java.util.function.Supplier<SetMap<K,V>>	supplier()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.stream.Collector

of, of

Constructor Detail

SetMapCollector

public SetMapCollector(java.util.function.Function<T,K> keyMapper,
                       java.util.function.Function<T,V> valueMapper)

Method Detail

collect

public static <T,K,V> SetMapCollector<T,K,V> collect(java.util.function.Function<T,K> keyMapper,
                                                     java.util.function.Function<T,V> valueMapper)

Collects the stream into a new SetMap where stream objects are mapped to SetMap keys by the given keyMapper and to SetMap values by the given valueMapper.

groupingBy

public static <T,K> SetMapCollector<T,K,T> groupingBy(java.util.function.Function<T,K> keyMapper)

Collects the stream into a new SetMap, grouping stream objects by the given keyMapper. This works identically to Collectors.groupingBy(java.util.function.Function<? super T, ? extends K>).

supplier

public java.util.function.Supplier<SetMap<K,V>> supplier()

Specified by:

supplier in interface java.util.stream.Collector<T,SetMap<K,V>,SetMap<K,V>>

accumulator

public java.util.function.BiConsumer<SetMap<K,V>,T> accumulator()

Specified by:

accumulator in interface java.util.stream.Collector<T,SetMap<K,V>,SetMap<K,V>>

combiner

public java.util.function.BinaryOperator<SetMap<K,V>> combiner()

Specified by:

combiner in interface java.util.stream.Collector<T,SetMap<K,V>,SetMap<K,V>>

finisher

public java.util.function.Function<SetMap<K,V>,SetMap<K,V>> finisher()

Specified by:

finisher in interface java.util.stream.Collector<T,SetMap<K,V>,SetMap<K,V>>

characteristics

public java.util.Set<java.util.stream.Collector.Characteristics> characteristics()

Specified by:

characteristics in interface java.util.stream.Collector<T,SetMap<K,V>,SetMap<K,V>>