Package com.google.common.collect

Class CollectSpliterators

java.lang.Object

com.google.common.collect.CollectSpliterators

@GwtCompatible
final class CollectSpliterators
extends java.lang.Object

Spliterator utilities for common.collect internals.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	CollectSpliterators.FlatMapSpliterator<InElementT,OutElementT,OutSpliteratorT extends java.util.Spliterator<OutElementT>>	Implements the Stream#flatMap operation on spliterators.
(package private) static class	CollectSpliterators.FlatMapSpliteratorOfDouble<InElementT>	Implementation of flatMapToDouble(java.util.Spliterator<InElementT>, java.util.function.Function<? super InElementT, java.util.Spliterator.OfDouble>, int, long).
(package private) static class	CollectSpliterators.FlatMapSpliteratorOfInt<InElementT>	Implementation of flatMapToInt(java.util.Spliterator<InElementT>, java.util.function.Function<? super InElementT, java.util.Spliterator.OfInt>, int, long).
(package private) static class	CollectSpliterators.FlatMapSpliteratorOfLong<InElementT>	Implementation of flatMapToLong(java.util.Spliterator<InElementT>, java.util.function.Function<? super InElementT, java.util.Spliterator.OfLong>, int, long).
(package private) static class	CollectSpliterators.FlatMapSpliteratorOfObject<InElementT,OutElementT>	Implementation of Stream#flatMap with an object spliterator output type.
(package private) static class	CollectSpliterators.FlatMapSpliteratorOfPrimitive<InElementT,OutElementT,OutConsumerT,OutSpliteratorT extends java.util.Spliterator.OfPrimitive<OutElementT,OutConsumerT,OutSpliteratorT>>	Implementation of Stream#flatMap with a primitive spliterator output type.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	CollectSpliterators()

Method Summary

Modifier and Type	Method	Description
(package private) static <T> java.util.Spliterator<T>	filter(java.util.Spliterator<T> fromSpliterator, java.util.function.Predicate<? super T> predicate)	Returns a Spliterator filtered by the specified predicate.
(package private) static <InElementT,OutElementT> java.util.Spliterator<OutElementT>	flatMap(java.util.Spliterator<InElementT> fromSpliterator, java.util.function.Function<? super InElementT,java.util.Spliterator<OutElementT>> function, int topCharacteristics, long topSize)	Returns a Spliterator that iterates over the elements of the spliterators generated by applying function to the elements of fromSpliterator.
(package private) static <InElementT> java.util.Spliterator.OfDouble	flatMapToDouble(java.util.Spliterator<InElementT> fromSpliterator, java.util.function.Function<? super InElementT,java.util.Spliterator.OfDouble> function, int topCharacteristics, long topSize)	Returns a Spliterator.OfDouble that iterates over the elements of the spliterators generated by applying function to the elements of fromSpliterator.
(package private) static <InElementT> java.util.Spliterator.OfInt	flatMapToInt(java.util.Spliterator<InElementT> fromSpliterator, java.util.function.Function<? super InElementT,java.util.Spliterator.OfInt> function, int topCharacteristics, long topSize)	Returns a Spliterator.OfInt that iterates over the elements of the spliterators generated by applying function to the elements of fromSpliterator.
(package private) static <InElementT> java.util.Spliterator.OfLong	flatMapToLong(java.util.Spliterator<InElementT> fromSpliterator, java.util.function.Function<? super InElementT,java.util.Spliterator.OfLong> function, int topCharacteristics, long topSize)	Returns a Spliterator.OfLong that iterates over the elements of the spliterators generated by applying function to the elements of fromSpliterator.
(package private) static <T> java.util.Spliterator<T>	indexed(int size, int extraCharacteristics, java.util.function.IntFunction<T> function)
(package private) static <T> java.util.Spliterator<T>	indexed(int size, int extraCharacteristics, java.util.function.IntFunction<T> function, java.util.Comparator<? super T> comparator)
(package private) static <InElementT,OutElementT> java.util.Spliterator<OutElementT>	map(java.util.Spliterator<InElementT> fromSpliterator, java.util.function.Function<? super InElementT,? extends OutElementT> function)	Returns a Spliterator over the elements of fromSpliterator mapped by function.

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectSpliterators

private CollectSpliterators()

Method Detail

indexed

static <T> java.util.Spliterator<T> indexed(int size,
                                            int extraCharacteristics,
                                            java.util.function.IntFunction<T> function)

indexed

static <T> java.util.Spliterator<T> indexed(int size,
                                            int extraCharacteristics,
                                            java.util.function.IntFunction<T> function,
                                            java.util.Comparator<? super T> comparator)

map

static <InElementT,OutElementT> java.util.Spliterator<OutElementT> map(java.util.Spliterator<InElementT> fromSpliterator,
                                                                             java.util.function.Function<? super InElementT,? extends OutElementT> function)

Returns a Spliterator over the elements of fromSpliterator mapped by function.

filter

static <T> java.util.Spliterator<T> filter(java.util.Spliterator<T> fromSpliterator,
                                           java.util.function.Predicate<? super T> predicate)

Returns a Spliterator filtered by the specified predicate.

flatMap

static <InElementT,OutElementT> java.util.Spliterator<OutElementT> flatMap(java.util.Spliterator<InElementT> fromSpliterator,
                                                                                 java.util.function.Function<? super InElementT,java.util.Spliterator<OutElementT>> function,
                                                                                 int topCharacteristics,
                                                                                 long topSize)

Returns a Spliterator that iterates over the elements of the spliterators generated by applying function to the elements of fromSpliterator.

flatMapToInt

static <InElementT> java.util.Spliterator.OfInt flatMapToInt(java.util.Spliterator<InElementT> fromSpliterator,
                                                             java.util.function.Function<? super InElementT,java.util.Spliterator.OfInt> function,
                                                             int topCharacteristics,
                                                             long topSize)

Returns a Spliterator.OfInt that iterates over the elements of the spliterators generated by applying function to the elements of fromSpliterator. (If function returns null for an input, it is replaced with an empty stream.)

flatMapToLong

static <InElementT> java.util.Spliterator.OfLong flatMapToLong(java.util.Spliterator<InElementT> fromSpliterator,
                                                               java.util.function.Function<? super InElementT,java.util.Spliterator.OfLong> function,
                                                               int topCharacteristics,
                                                               long topSize)

Returns a Spliterator.OfLong that iterates over the elements of the spliterators generated by applying function to the elements of fromSpliterator. (If function returns null for an input, it is replaced with an empty stream.)

flatMapToDouble

static <InElementT> java.util.Spliterator.OfDouble flatMapToDouble(java.util.Spliterator<InElementT> fromSpliterator,
                                                                   java.util.function.Function<? super InElementT,java.util.Spliterator.OfDouble> function,
                                                                   int topCharacteristics,
                                                                   long topSize)

Returns a Spliterator.OfDouble that iterates over the elements of the spliterators generated by applying function to the elements of fromSpliterator. (If function returns null for an input, it is replaced with an empty stream.)