OpenJDK 27 · java.util.stream.StreamSupport · APIdia, the JavaDoc alternative

Access	Constructor and Description
private	StreamSupport()

Method Summary

Modifier and Type	Method and Description
public static DoubleStream	Returns: a new sequential or parallel `DoubleStream` doubleStream(Spliterator.OfDouble A `Spliterator.OfDouble` describing the stream elements spliterator, boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. parallel) Creates a new sequential or parallel `DoubleStream` from a `Spliterator.OfDouble`.
public static DoubleStream	Returns: a new sequential or parallel `DoubleStream` doubleStream(Supplier<? extends Spliterator.OfDouble> A `Supplier` of a `Spliterator.OfDouble` supplier, int Spliterator characteristics of the supplied `Spliterator.OfDouble`. The characteristics must be equal to `supplier.get().characteristics()`, otherwise undefined behavior may occur when terminal operation commences. characteristics, boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. parallel) Creates a new sequential or parallel `DoubleStream` from a `Supplier` of `Spliterator.OfDouble`.
public static IntStream	Returns: a new sequential or parallel `IntStream` intStream(Spliterator.OfInt a `Spliterator.OfInt` describing the stream elements spliterator, boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. parallel) Creates a new sequential or parallel `IntStream` from a `Spliterator.OfInt`.
public static IntStream	Returns: a new sequential or parallel `IntStream` intStream(Supplier<? extends Spliterator.OfInt> a `Supplier` of a `Spliterator.OfInt` supplier, int Spliterator characteristics of the supplied `Spliterator.OfInt`. The characteristics must be equal to `supplier.get().characteristics()`, otherwise undefined behavior may occur when terminal operation commences. characteristics, boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. parallel) Creates a new sequential or parallel `IntStream` from a `Supplier` of `Spliterator.OfInt`.
public static LongStream	Returns: a new sequential or parallel `LongStream` longStream(Spliterator.OfLong a `Spliterator.OfLong` describing the stream elements spliterator, boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. parallel) Creates a new sequential or parallel `LongStream` from a `Spliterator.OfLong`.
public static LongStream	Returns: a new sequential or parallel `LongStream` longStream(Supplier<? extends Spliterator.OfLong> a `Supplier` of a `Spliterator.OfLong` supplier, int Spliterator characteristics of the supplied `Spliterator.OfLong`. The characteristics must be equal to `supplier.get().characteristics()`, otherwise undefined behavior may occur when terminal operation commences. characteristics, boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. parallel) Creates a new sequential or parallel `LongStream` from a `Supplier` of `Spliterator.OfLong`.
public static < the type of stream elements T> Stream<T>	Returns: a new sequential or parallel `Stream` stream(Spliterator<T> a `Spliterator` describing the stream elements spliterator, boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. parallel) Creates a new sequential or parallel `Stream` from a `Spliterator`.
public static < the type of stream elements T> Stream<T>	Returns: a new sequential or parallel `Stream` stream(Supplier<? extends Spliterator<T>> a `Supplier` of a `Spliterator` supplier, int Spliterator characteristics of the supplied `Spliterator`. The characteristics must be equal to `supplier.get().characteristics()`, otherwise undefined behavior may occur when terminal operation commences. characteristics, boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. parallel) Creates a new sequential or parallel `Stream` from a `Supplier` of `Spliterator`.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

StreamSupport	back to summary
private StreamSupport()

Method Detail

doubleStream back to summary

doubleStream	back to summary
public static DoubleStream doubleStream(Spliterator.OfDouble spliterator, boolean parallel) Creates a new sequential or parallel `DoubleStream` from a `Spliterator.OfDouble`. The spliterator is only traversed, split, or queried for estimated size after the terminal operation of the stream pipeline commences. It is strongly recommended the spliterator report a characteristic of `IMMUTABLE` or `CONCURRENT`, or be late-binding. Otherwise, `doubleStream(java.util.function.Supplier, int, boolean)` should be used to reduce the scope of potential interference with the source. See Non-Interference for more details. Parameters spliterator:Spliterator.OfDouble A `Spliterator.OfDouble` describing the stream elements parallel:boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. Returns:DoubleStream a new sequential or parallel `DoubleStream`

public static DoubleStream doubleStream(Spliterator.OfDouble spliterator, boolean parallel)

Creates a new sequential or parallel DoubleStream from a Spliterator.OfDouble.

The spliterator is only traversed, split, or queried for estimated size after the terminal operation of the stream pipeline commences.

It is strongly recommended the spliterator report a characteristic of IMMUTABLE or CONCURRENT, or be late-binding. Otherwise, doubleStream(java.util.function.Supplier, int, boolean) should be used to reduce the scope of potential interference with the source. See Non-Interference for more details.

Parameters

spliterator:Spliterator.OfDouble: A Spliterator.OfDouble describing the stream elements
parallel:boolean: if true then the returned stream is a parallel stream; if false the returned stream is a sequential stream.

Returns:DoubleStream

a new sequential or parallel DoubleStream

doubleStream back to summary

doubleStream	back to summary
public static DoubleStream doubleStream(Supplier<? extends Spliterator.OfDouble> supplier, int characteristics, boolean parallel) Creates a new sequential or parallel `DoubleStream` from a `Supplier` of `Spliterator.OfDouble`. The `Supplier#get()` method will be invoked on the supplier no more than once, and only after the terminal operation of the stream pipeline commences. For spliterators that report a characteristic of `IMMUTABLE` or `CONCURRENT`, or that are late-binding, it is likely more efficient to use `doubleStream(java.util.Spliterator.OfDouble, boolean)` instead. The use of a `Supplier` in this form provides a level of indirection that reduces the scope of potential interference with the source. Since the supplier is only invoked after the terminal operation commences, any modifications to the source up to the start of the terminal operation are reflected in the stream result. See Non-Interference for more details. Parameters supplier:Supplier<? extends Spliterator.OfDouble> A `Supplier` of a `Spliterator.OfDouble` characteristics:int Spliterator characteristics of the supplied `Spliterator.OfDouble`. The characteristics must be equal to `supplier.get().characteristics()`, otherwise undefined behavior may occur when terminal operation commences. parallel:boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. Returns:DoubleStream a new sequential or parallel `DoubleStream` See Also `doubleStream(java.util.Spliterator.OfDouble, boolean)`

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

Creates a new sequential or parallel DoubleStream from a Supplier of Spliterator.OfDouble.

The Supplier#get() method will be invoked on the supplier no more than once, and only after the terminal operation of the stream pipeline commences.

For spliterators that report a characteristic of IMMUTABLE or CONCURRENT, or that are late-binding, it is likely more efficient to use doubleStream(java.util.Spliterator.OfDouble, boolean) instead.

The use of a Supplier in this form provides a level of indirection that reduces the scope of potential interference with the source. Since the supplier is only invoked after the terminal operation commences, any modifications to the source up to the start of the terminal operation are reflected in the stream result. See Non-Interference for more details.

Parameters

supplier:Supplier<? extends Spliterator.OfDouble>: A Supplier of a Spliterator.OfDouble
characteristics:int: Spliterator characteristics of the supplied Spliterator.OfDouble. The characteristics must be equal to supplier.get().characteristics(), otherwise undefined behavior may occur when terminal operation commences.
parallel:boolean: if true then the returned stream is a parallel stream; if false the returned stream is a sequential stream.

Returns:DoubleStream

a new sequential or parallel DoubleStream

intStream back to summary

intStream	back to summary
public static IntStream intStream(Spliterator.OfInt spliterator, boolean parallel) Creates a new sequential or parallel `IntStream` from a `Spliterator.OfInt`. The spliterator is only traversed, split, or queried for estimated size after the terminal operation of the stream pipeline commences. It is strongly recommended the spliterator report a characteristic of `IMMUTABLE` or `CONCURRENT`, or be late-binding. Otherwise, `intStream(java.util.function.Supplier, int, boolean)` should be used to reduce the scope of potential interference with the source. See Non-Interference for more details. Parameters spliterator:Spliterator.OfInt a `Spliterator.OfInt` describing the stream elements parallel:boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. Returns:IntStream a new sequential or parallel `IntStream`

public static IntStream intStream(Spliterator.OfInt spliterator, boolean parallel)

Creates a new sequential or parallel IntStream from a Spliterator.OfInt.

The spliterator is only traversed, split, or queried for estimated size after the terminal operation of the stream pipeline commences.

It is strongly recommended the spliterator report a characteristic of IMMUTABLE or CONCURRENT, or be late-binding. Otherwise, intStream(java.util.function.Supplier, int, boolean) should be used to reduce the scope of potential interference with the source. See Non-Interference for more details.

Parameters

spliterator:Spliterator.OfInt: a Spliterator.OfInt describing the stream elements
parallel:boolean: if true then the returned stream is a parallel stream; if false the returned stream is a sequential stream.

Returns:IntStream

a new sequential or parallel IntStream

intStream back to summary

intStream	back to summary
public static IntStream intStream(Supplier<? extends Spliterator.OfInt> supplier, int characteristics, boolean parallel) Creates a new sequential or parallel `IntStream` from a `Supplier` of `Spliterator.OfInt`. The `Supplier#get()` method will be invoked on the supplier no more than once, and only after the terminal operation of the stream pipeline commences. For spliterators that report a characteristic of `IMMUTABLE` or `CONCURRENT`, or that are late-binding, it is likely more efficient to use `intStream(java.util.Spliterator.OfInt, boolean)` instead. The use of a `Supplier` in this form provides a level of indirection that reduces the scope of potential interference with the source. Since the supplier is only invoked after the terminal operation commences, any modifications to the source up to the start of the terminal operation are reflected in the stream result. See Non-Interference for more details. Parameters supplier:Supplier<? extends Spliterator.OfInt> a `Supplier` of a `Spliterator.OfInt` characteristics:int Spliterator characteristics of the supplied `Spliterator.OfInt`. The characteristics must be equal to `supplier.get().characteristics()`, otherwise undefined behavior may occur when terminal operation commences. parallel:boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. Returns:IntStream a new sequential or parallel `IntStream` See Also `intStream(java.util.Spliterator.OfInt, boolean)`

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

Creates a new sequential or parallel IntStream from a Supplier of Spliterator.OfInt.

The Supplier#get() method will be invoked on the supplier no more than once, and only after the terminal operation of the stream pipeline commences.

For spliterators that report a characteristic of IMMUTABLE or CONCURRENT, or that are late-binding, it is likely more efficient to use intStream(java.util.Spliterator.OfInt, boolean) instead.

Parameters

supplier:Supplier<? extends Spliterator.OfInt>: a Supplier of a Spliterator.OfInt
characteristics:int: Spliterator characteristics of the supplied Spliterator.OfInt. The characteristics must be equal to supplier.get().characteristics(), otherwise undefined behavior may occur when terminal operation commences.
parallel:boolean: if true then the returned stream is a parallel stream; if false the returned stream is a sequential stream.

Returns:IntStream

a new sequential or parallel IntStream

longStream back to summary

longStream	back to summary
public static LongStream longStream(Spliterator.OfLong spliterator, boolean parallel) Creates a new sequential or parallel `LongStream` from a `Spliterator.OfLong`. The spliterator is only traversed, split, or queried for estimated size after the terminal operation of the stream pipeline commences. It is strongly recommended the spliterator report a characteristic of `IMMUTABLE` or `CONCURRENT`, or be late-binding. Otherwise, `longStream(java.util.function.Supplier, int, boolean)` should be used to reduce the scope of potential interference with the source. See Non-Interference for more details. Parameters spliterator:Spliterator.OfLong a `Spliterator.OfLong` describing the stream elements parallel:boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. Returns:LongStream a new sequential or parallel `LongStream`

public static LongStream longStream(Spliterator.OfLong spliterator, boolean parallel)

Creates a new sequential or parallel LongStream from a Spliterator.OfLong.

The spliterator is only traversed, split, or queried for estimated size after the terminal operation of the stream pipeline commences.

It is strongly recommended the spliterator report a characteristic of IMMUTABLE or CONCURRENT, or be late-binding. Otherwise, longStream(java.util.function.Supplier, int, boolean) should be used to reduce the scope of potential interference with the source. See Non-Interference for more details.

Parameters

spliterator:Spliterator.OfLong: a Spliterator.OfLong describing the stream elements
parallel:boolean: if true then the returned stream is a parallel stream; if false the returned stream is a sequential stream.

Returns:LongStream

a new sequential or parallel LongStream

longStream back to summary

longStream	back to summary
public static LongStream longStream(Supplier<? extends Spliterator.OfLong> supplier, int characteristics, boolean parallel) Creates a new sequential or parallel `LongStream` from a `Supplier` of `Spliterator.OfLong`. The `Supplier#get()` method will be invoked on the supplier no more than once, and only after the terminal operation of the stream pipeline commences. For spliterators that report a characteristic of `IMMUTABLE` or `CONCURRENT`, or that are late-binding, it is likely more efficient to use `longStream(java.util.Spliterator.OfLong, boolean)` instead. The use of a `Supplier` in this form provides a level of indirection that reduces the scope of potential interference with the source. Since the supplier is only invoked after the terminal operation commences, any modifications to the source up to the start of the terminal operation are reflected in the stream result. See Non-Interference for more details. Parameters supplier:Supplier<? extends Spliterator.OfLong> a `Supplier` of a `Spliterator.OfLong` characteristics:int Spliterator characteristics of the supplied `Spliterator.OfLong`. The characteristics must be equal to `supplier.get().characteristics()`, otherwise undefined behavior may occur when terminal operation commences. parallel:boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. Returns:LongStream a new sequential or parallel `LongStream` See Also `longStream(java.util.Spliterator.OfLong, boolean)`

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

Creates a new sequential or parallel LongStream from a Supplier of Spliterator.OfLong.

The Supplier#get() method will be invoked on the supplier no more than once, and only after the terminal operation of the stream pipeline commences.

For spliterators that report a characteristic of IMMUTABLE or CONCURRENT, or that are late-binding, it is likely more efficient to use longStream(java.util.Spliterator.OfLong, boolean) instead.

Parameters

supplier:Supplier<? extends Spliterator.OfLong>: a Supplier of a Spliterator.OfLong
characteristics:int: Spliterator characteristics of the supplied Spliterator.OfLong. The characteristics must be equal to supplier.get().characteristics(), otherwise undefined behavior may occur when terminal operation commences.
parallel:boolean: if true then the returned stream is a parallel stream; if false the returned stream is a sequential stream.

Returns:LongStream

a new sequential or parallel LongStream

stream back to summary

stream	back to summary
public static <T> Stream<T> stream(Spliterator<T> spliterator, boolean parallel) Creates a new sequential or parallel `Stream` from a `Spliterator`. The spliterator is only traversed, split, or queried for estimated size after the terminal operation of the stream pipeline commences. It is strongly recommended the spliterator report a characteristic of `IMMUTABLE` or `CONCURRENT`, or be late-binding. Otherwise, `stream(java.util.function.Supplier, int, boolean)` should be used to reduce the scope of potential interference with the source. See Non-Interference for more details. Parameters <T> the type of stream elements spliterator:Spliterator<T> a `Spliterator` describing the stream elements parallel:boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. Returns:Stream<T> a new sequential or parallel `Stream`

public static <T> Stream<T> stream(Spliterator<T> spliterator, boolean parallel)

Creates a new sequential or parallel Stream from a Spliterator.

The spliterator is only traversed, split, or queried for estimated size after the terminal operation of the stream pipeline commences.

It is strongly recommended the spliterator report a characteristic of IMMUTABLE or CONCURRENT, or be late-binding. Otherwise, stream(java.util.function.Supplier, int, boolean) should be used to reduce the scope of potential interference with the source. See Non-Interference for more details.

Parameters

<T>: the type of stream elements
spliterator:Spliterator<T>: a Spliterator describing the stream elements
parallel:boolean: if true then the returned stream is a parallel stream; if false the returned stream is a sequential stream.

Returns:Stream<T>

a new sequential or parallel Stream

stream back to summary

stream	back to summary
public static <T> Stream<T> stream(Supplier<? extends Spliterator<T>> supplier, int characteristics, boolean parallel) Creates a new sequential or parallel `Stream` from a `Supplier` of `Spliterator`. The `Supplier#get()` method will be invoked on the supplier no more than once, and only after the terminal operation of the stream pipeline commences. For spliterators that report a characteristic of `IMMUTABLE` or `CONCURRENT`, or that are late-binding, it is likely more efficient to use `stream(java.util.Spliterator, boolean)` instead. The use of a `Supplier` in this form provides a level of indirection that reduces the scope of potential interference with the source. Since the supplier is only invoked after the terminal operation commences, any modifications to the source up to the start of the terminal operation are reflected in the stream result. See Non-Interference for more details. Parameters <T> the type of stream elements supplier:Supplier<? extends Spliterator<T>> a `Supplier` of a `Spliterator` characteristics:int Spliterator characteristics of the supplied `Spliterator`. The characteristics must be equal to `supplier.get().characteristics()`, otherwise undefined behavior may occur when terminal operation commences. parallel:boolean if `true` then the returned stream is a parallel stream; if `false` the returned stream is a sequential stream. Returns:Stream<T> a new sequential or parallel `Stream` See Also `stream(java.util.Spliterator, boolean)`

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

Creates a new sequential or parallel Stream from a Supplier of Spliterator.

The Supplier#get() method will be invoked on the supplier no more than once, and only after the terminal operation of the stream pipeline commences.

For spliterators that report a characteristic of IMMUTABLE or CONCURRENT, or that are late-binding, it is likely more efficient to use stream(java.util.Spliterator, boolean) instead.

Parameters

<T>: the type of stream elements
supplier:Supplier<? extends Spliterator<T>>: a Supplier of a Spliterator
characteristics:int: Spliterator characteristics of the supplied Spliterator. The characteristics must be equal to supplier.get().characteristics(), otherwise undefined behavior may occur when terminal operation commences.
parallel:boolean: if true then the returned stream is a parallel stream; if false the returned stream is a sequential stream.

Returns:Stream<T>

a new sequential or parallel Stream

public final Class StreamSupport

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Constructor Detail

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