net.covers1624.quack.collection

Class FastStream.Grouped<T,K,V>

java.lang.Object

net.covers1624.quack.collection.FastStream.Grouped<T,K,V>

All Implemented Interfaces:

java.lang.Iterable<FastStream.Group<K,V>>, FastStream<FastStream.Group<K,V>>

Enclosing interface:

FastStream<T>

public static final class FastStream.Grouped<T,K,V>
extends java.lang.Object
implements FastStream<FastStream.Group<K,V>>

A FastStream of elements grouped by a specific key.

Nested Class Summary

Nested classes/interfaces inherited from interface net.covers1624.quack.collection.FastStream

FastStream.Concatenated<T>, FastStream.ConcatenatedN<T>, FastStream.Distinct<T>, FastStream.Filtered<T>, FastStream.FlatMapped<T,R>, FastStream.Group<K,V>, FastStream.Grouped<T,K,V>, FastStream.Internal, FastStream.Mapped<T,R>, FastStream.OfN<T>, FastStream.OfSingle<T>, FastStream.Peeked<T>, FastStream.Reversed<T>, FastStream.Sliced<T>, FastStream.Sorted<T>, FastStream.TypeCheck<T,S>, FastStream.Wrapped<T>, FastStream.WrappedSpl<T>

Field Summary

Fields inherited from interface net.covers1624.quack.collection.FastStream

EMPTY

Constructor Summary

Constructors

Constructor and Description
Grouped(FastStream<T> parent, java.util.function.Function<? super T,? extends K> keyFunc, java.util.function.Function<? super T,? extends V> valueFunc)

Method Summary

Modifier and Type	Method and Description
void	forEach(java.util.function.Consumer<? super FastStream.Group<K,V>> action)
@NotNull java.util.Iterator<FastStream.Group<K,V>>	iterator()
int	knownLength(boolean consumeToCalculate) Returns the known length for the stream.

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.covers1624.quack.collection.FastStream

allMatch, anyMatch, concat, concat, concatMany, count, distinct, doubleSum, empty, filter, filterNot, findFirst, findLast, first, firstOrDefault, firstOrDefault, flatMap, fold, fold, groupBy, groupBy, infer, intSum, isEmpty, join, knownLength, last, lastOrDefault, lastOrDefault, limit, longSum, map, maxBy, maxByOrDefault, maxByOrDefault, noneMatch, of, of, of, of, of, of, of, ofNullable, only, onlyOrDefault, onlyOrDefault, peek, reversed, skip, sorted, sorted, toArray, toArray, toImmutableList, toImmutableList, toImmutableMap, toImmutableMap, toImmutableSet, toImmutableSet, toLinkedHashMap, toLinkedHashMap, toLinkedHashSet, toLinkedHashSet, toLinkedList, toLinkedList, toList, toList, toMap, toMap, toMap, toMap, toSet, toSet

Methods inherited from interface java.lang.Iterable

spliterator

Constructor Detail

Grouped

public Grouped(FastStream<T> parent,
               java.util.function.Function<? super T,? extends K> keyFunc,
               java.util.function.Function<? super T,? extends V> valueFunc)

Method Detail

iterator

@NotNull
public @NotNull java.util.Iterator<FastStream.Group<K,V>> iterator()

Specified by:

iterator in interface java.lang.Iterable<FastStream.Group<K,V>>

forEach

public void forEach(java.util.function.Consumer<? super FastStream.Group<K,V>> action)

Specified by:

forEach in interface java.lang.Iterable<FastStream.Group<K,V>>

knownLength

public int knownLength(boolean consumeToCalculate)

Description copied from interface: FastStream

Returns the known length for the stream.

If true is specified to consumeToCalculate causes operations which would not normally know their length prior to a terminal operation being applied, to cache their result under the assumption that the stream is about to be fully consumed.

Specified by:

knownLength in interface FastStream<FastStream.Group<K,V>>

Parameters:

consumeToCalculate - If the caller intends to consume the entire stream via Iterable.forEach(java.util.function.Consumer<? super T>) after calling.

Returns:

The known length for the stream. {code -1} if the length is not known.