java.util.stream

Class Streams

java.lang.Object

java.util.stream.Streams

public class Streams
extends Object

Streams

Since:

1.8

Field Summary

Fields

Modifier and Type	Field and Description
static long	MAX_ARRAY_SIZE

Method Summary

Modifier and Type	Method and Description
static <T> Stream<T>	concat(Stream<? extends T> a, Stream<? extends T> b)
static DoubleStream.DoubleIterator	doubleIteratorFrom(Spliterator.OfDouble spliterator)
static DoubleStream	doubleParallelStream(Spliterator.OfDouble source)
static DoubleStream	doubleParallelStream(Supplier<? extends Spliterator.OfDouble> source, int characteristics)
static Spliterator.OfDouble	doubleSpliterator(DoubleStream.DoubleIterator iterator, long exactSizeIfKnown, int characteristics)
static Spliterator.OfDouble	doubleSpliteratorUnknownSize(DoubleStream.DoubleIterator iterator, int characteristics)
static DoubleStream	doubleStream(Spliterator.OfDouble source)
static DoubleStream	doubleStream(Supplier<? extends Spliterator.OfDouble> source, int characteristics)
static <E> Spliterator.OfDouble	emptyDoubleSpliterator()
static DoubleStream	emptyDoubleStream()
static <E> Spliterator.OfInt	emptyIntSpliterator()
static IntStream	emptyIntStream()
static <E> Spliterator.OfLong	emptyLongSpliterator()
static LongStream	emptyLongStream()
static <T> Spliterator<T>	emptySpliterator()
static <T> Stream<T>	emptyStream()
static <T> Stream<T>	generate(Supplier<T> f)
static DoubleStream	generateDouble(DoubleSupplier f)
static IntStream	generateInt(IntSupplier f)
static LongStream	generateLong(LongSupplier f)
static IntStream.IntIterator	intIteratorFrom(Spliterator.OfInt spliterator)
static IntStream	intParallelStream(Spliterator.OfInt source)
static IntStream	intParallelStream(Supplier<? extends Spliterator.OfInt> source, int characteristics)
static IntStream	intRange(int from, int upTo)
static IntStream	intRange(int from, int upTo, int step)
static Spliterator.OfInt	intSpliterator(IntStream.IntIterator iterator, long exactSizeIfKnown, int characteristics)
static Spliterator.OfInt	intSpliteratorUnknownSize(IntStream.IntIterator iterator, int characteristics)
static IntStream	intStream(Spliterator.OfInt source)
static IntStream	intStream(Supplier<? extends Spliterator.OfInt> source, int characteristics)
static <T> Stream<T>	iterate(T seed, UnaryOperator<T> f)
static DoubleStream	iterateDouble(double seed, DoubleUnaryOperator f)
static IntStream	iterateInt(int seed, IntUnaryOperator f)
static LongStream	iterateLong(long seed, LongUnaryOperator f)
static <T> Iterator<T>	iteratorFrom(Spliterator<? extends T> spliterator)
static LongStream.LongIterator	longIteratorFrom(Spliterator.OfLong spliterator)
static LongStream	longParallelStream(Spliterator.OfLong source)
static LongStream	longParallelStream(Supplier<? extends Spliterator.OfLong> source, int characteristics)
static LongStream	longRange(long from, long upTo)
static LongStream	longRange(long from, long upTo, long step)
static Spliterator.OfLong	longSpliterator(LongStream.LongIterator iterator, long exactSizeIfKnown, int characteristics)
static Spliterator.OfLong	longSpliteratorUnknownSize(LongStream.LongIterator iterator, int characteristics)
static LongStream	longStream(Spliterator.OfLong source)
static LongStream	longStream(Supplier<? extends Spliterator.OfLong> source, int characteristics)
static <T> Stream<T>	parallelStream(Spliterator<T> source)
static <T> Stream<T>	parallelStream(Supplier<? extends Spliterator<T>> source, int characteristics)
static <T> Spliterator<T>	spliterator(Iterator<T> iterator, long exactSizeIfKnown, int characteristics)
static <T> Spliterator<T>	spliteratorUnknownSize(Iterator<T> iterator, int characteristics)
static <T> Stream<T>	stream(Spliterator<T> source)
static <T> Stream<T>	stream(Supplier<? extends Spliterator<T>> source, int characteristics)
static <A,B,C> Stream<C>	zip(Stream<? extends A> a, Stream<? extends B> b, BiFunction<? super A,? super B,? extends C> zipper)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_ARRAY_SIZE

public static final long MAX_ARRAY_SIZE

See Also:

Constant Field Values

Method Detail

emptyStream

public static <T> Stream<T> emptyStream()

stream

public static <T> Stream<T> stream(Supplier<? extends Spliterator<T>> source,
                   int characteristics)

parallelStream

public static <T> Stream<T> parallelStream(Supplier<? extends Spliterator<T>> source,
                           int characteristics)

stream

public static <T> Stream<T> stream(Spliterator<T> source)

parallelStream

public static <T> Stream<T> parallelStream(Spliterator<T> source)

emptyIntStream

public static IntStream emptyIntStream()

intStream

public static IntStream intStream(Supplier<? extends Spliterator.OfInt> source,
                  int characteristics)

intParallelStream

public static IntStream intParallelStream(Supplier<? extends Spliterator.OfInt> source,
                          int characteristics)

intStream

public static IntStream intStream(Spliterator.OfInt source)

intParallelStream

public static IntStream intParallelStream(Spliterator.OfInt source)

emptyLongStream

public static LongStream emptyLongStream()

longStream

public static LongStream longStream(Supplier<? extends Spliterator.OfLong> source,
                    int characteristics)

longParallelStream

public static LongStream longParallelStream(Supplier<? extends Spliterator.OfLong> source,
                            int characteristics)

longStream

public static LongStream longStream(Spliterator.OfLong source)

longParallelStream

public static LongStream longParallelStream(Spliterator.OfLong source)

emptyDoubleStream

public static DoubleStream emptyDoubleStream()

doubleStream

public static DoubleStream doubleStream(Supplier<? extends Spliterator.OfDouble> source,
                        int characteristics)

doubleParallelStream

public static DoubleStream doubleParallelStream(Supplier<? extends Spliterator.OfDouble> source,
                                int characteristics)

doubleStream

public static DoubleStream doubleStream(Spliterator.OfDouble source)

doubleParallelStream

public static DoubleStream doubleParallelStream(Spliterator.OfDouble source)

emptySpliterator

public static <T> Spliterator<T> emptySpliterator()

emptyIntSpliterator

public static <E> Spliterator.OfInt emptyIntSpliterator()

emptyLongSpliterator

public static <E> Spliterator.OfLong emptyLongSpliterator()

emptyDoubleSpliterator

public static <E> Spliterator.OfDouble emptyDoubleSpliterator()

iteratorFrom

public static <T> Iterator<T> iteratorFrom(Spliterator<? extends T> spliterator)

intIteratorFrom

public static IntStream.IntIterator intIteratorFrom(Spliterator.OfInt spliterator)

longIteratorFrom

public static LongStream.LongIterator longIteratorFrom(Spliterator.OfLong spliterator)

doubleIteratorFrom

public static DoubleStream.DoubleIterator doubleIteratorFrom(Spliterator.OfDouble spliterator)

spliteratorUnknownSize

public static <T> Spliterator<T> spliteratorUnknownSize(Iterator<T> iterator,
                                        int characteristics)

spliterator

public static <T> Spliterator<T> spliterator(Iterator<T> iterator,
                             long exactSizeIfKnown,
                             int characteristics)

intSpliteratorUnknownSize

public static Spliterator.OfInt intSpliteratorUnknownSize(IntStream.IntIterator iterator,
                                          int characteristics)

intSpliterator

public static Spliterator.OfInt intSpliterator(IntStream.IntIterator iterator,
                               long exactSizeIfKnown,
                               int characteristics)

longSpliteratorUnknownSize

public static Spliterator.OfLong longSpliteratorUnknownSize(LongStream.LongIterator iterator,
                                            int characteristics)

longSpliterator

public static Spliterator.OfLong longSpliterator(LongStream.LongIterator iterator,
                                 long exactSizeIfKnown,
                                 int characteristics)

doubleSpliteratorUnknownSize

public static Spliterator.OfDouble doubleSpliteratorUnknownSize(DoubleStream.DoubleIterator iterator,
                                                int characteristics)

doubleSpliterator

public static Spliterator.OfDouble doubleSpliterator(DoubleStream.DoubleIterator iterator,
                                     long exactSizeIfKnown,
                                     int characteristics)

iterate

public static <T> Stream<T> iterate(T seed,
                    UnaryOperator<T> f)

generate

public static <T> Stream<T> generate(Supplier<T> f)

iterateInt

public static IntStream iterateInt(int seed,
                   IntUnaryOperator f)

generateInt

public static IntStream generateInt(IntSupplier f)

intRange

public static IntStream intRange(int from,
                 int upTo)

intRange

public static IntStream intRange(int from,
                 int upTo,
                 int step)

iterateLong

public static LongStream iterateLong(long seed,
                     LongUnaryOperator f)

generateLong

public static LongStream generateLong(LongSupplier f)

longRange

public static LongStream longRange(long from,
                   long upTo)

longRange

public static LongStream longRange(long from,
                   long upTo,
                   long step)

iterateDouble

public static DoubleStream iterateDouble(double seed,
                         DoubleUnaryOperator f)

generateDouble

public static DoubleStream generateDouble(DoubleSupplier f)

concat

public static <T> Stream<T> concat(Stream<? extends T> a,
                   Stream<? extends T> b)

zip

public static <A,B,C> Stream<C> zip(Stream<? extends A> a,
                    Stream<? extends B> b,
                    BiFunction<? super A,? super B,? extends C> zipper)