Uses of Interface
com.annimon.stream.Collector

Packages that use Collector

Package	Description
com.annimon.stream

Uses of Collector in com.annimon.stream

Methods in com.annimon.stream that return Collector

Modifier and Type	Method and Description
static <T> Collector<T,?,Double>	Collectors.averaging(Function<? super T,Double> mapper) Returns a Collector that calculates average of input elements.
static <T,A,IR,OR> Collector<T,A,OR>	Collectors.collectingAndThen(Collector<T,A,IR> c, Function<IR,OR> finisher) Returns a Collector that performs additional transformation.
static <T> Collector<T,?,Long>	Collectors.counting() Returns a Collector that counts the number of input elements.
static <T,K> Collector<T,?,Map<K,List<T>>>	Collectors.groupingBy(Function<? super T,? extends K> classifier) Returns a Collector that performs grouping operation by given classifier.
static <T,K,A,D> Collector<T,?,Map<K,D>>	Collectors.groupingBy(Function<? super T,? extends K> classifier, Collector<? super T,A,D> downstream) Returns a Collector that performs grouping operation by given classifier.
static <T,K,D,A,M extends Map<K,D>> Collector<T,?,M>	Collectors.groupingBy(Function<? super T,? extends K> classifier, Supplier<M> mapFactory, Collector<? super T,A,D> downstream) Returns a Collector that performs grouping operation by given classifier.
static Collector<CharSequence,?,String>	Collectors.joining() Returns a Collector that concatenates input elements into new string.
static Collector<CharSequence,?,String>	Collectors.joining(CharSequence delimiter) Returns a Collector that concatenates input elements into new string.
static Collector<CharSequence,?,String>	Collectors.joining(CharSequence delimiter, CharSequence prefix, CharSequence suffix) Returns a Collector that concatenates input elements into new string.
static Collector<CharSequence,?,String>	Collectors.joining(CharSequence delimiter, CharSequence prefix, CharSequence suffix, String emptyValue) Returns a Collector that concatenates input elements into new string.
static <T,U,A,R> Collector<T,?,R>	Collectors.mapping(Function<? super T,? extends U> mapper, Collector<? super U,A,R> downstream) Returns a Collector that performs mapping function before accumulation.
static <T,R> Collector<T,?,R>	Collectors.reducing(R identity, Function<? super T,? extends R> mapper, BinaryOperator<R> op) Returns a Collector that reduces the input elements.
static <T> Collector<T,?,T>	Collectors.reducing(T identity, BinaryOperator<T> op) Returns a Collector that reduces the input elements.
static <T,R extends Collection<T>> Collector<T,?,R>	Collectors.toCollection(Supplier<R> collectionSupplier) Returns a Collector that fills new Collection, provided by collectionSupplier, with input elements.
static <T> Collector<T,?,List<T>>	Collectors.toList() Returns a Collector that fills new List with input elements.
static <T,K,V> Collector<T,?,Map<K,V>>	Collectors.toMap(Function<? super T,? extends K> keyMapper, Function<? super T,? extends V> valueMapper) Returns a Collector that fills new Map with input elements.
static <T,K,V,M extends Map<K,V>> Collector<T,?,M>	Collectors.toMap(Function<? super T,? extends K> keyMapper, Function<? super T,? extends V> valueMapper, Supplier<M> mapFactory) Returns a Collector that fills new List with input elements.
static <T> Collector<T,?,Set<T>>	Collectors.toSet() Returns a Collector that fills new Set with input elements.

Methods in com.annimon.stream with parameters of type Collector

Modifier and Type	Method and Description
<R,A> R	Stream.collect(Collector<? super T,A,R> collector) Collects elements with collector that encapsulates supplier, accumulator and combiner functions.
static <T,A,IR,OR> Collector<T,A,OR>	Collectors.collectingAndThen(Collector<T,A,IR> c, Function<IR,OR> finisher) Returns a Collector that performs additional transformation.
static <T,K,A,D> Collector<T,?,Map<K,D>>	Collectors.groupingBy(Function<? super T,? extends K> classifier, Collector<? super T,A,D> downstream) Returns a Collector that performs grouping operation by given classifier.
static <T,K,D,A,M extends Map<K,D>> Collector<T,?,M>	Collectors.groupingBy(Function<? super T,? extends K> classifier, Supplier<M> mapFactory, Collector<? super T,A,D> downstream) Returns a Collector that performs grouping operation by given classifier.
static <T,U,A,R> Collector<T,?,R>	Collectors.mapping(Function<? super T,? extends U> mapper, Collector<? super U,A,R> downstream) Returns a Collector that performs mapping function before accumulation.