scala.compat.java8.collectionImpl

Class AccumulatorStepper<A>

java.lang.Object

scala.compat.java8.collectionImpl.AccumulatorStepper<A>

All Implemented Interfaces:

java.util.Iterator<A>, java.util.Spliterator<A>, AnyStepper<A>, Stepper<A>, StepperLike<A,AnyStepper<A>>

public class AccumulatorStepper<A>
extends java.lang.Object
implements AnyStepper<A>

Nested Class Summary

Nested classes/interfaces inherited from interface scala.compat.java8.collectionImpl.AnyStepper

AnyStepper.BoxedDoubleStepper, AnyStepper.BoxedIntStepper, AnyStepper.BoxedLongStepper

Nested classes/interfaces inherited from interface scala.compat.java8.collectionImpl.Stepper

Stepper.OfDoubleSpliterator, Stepper.OfIntSpliterator, Stepper.OfLongSpliterator, Stepper.OfSpliterator<A>, Stepper.UnboxingByteStepper, Stepper.UnboxingCharStepper, Stepper.UnboxingDoubleStepper, Stepper.UnboxingFloatStepper, Stepper.UnboxingIntStepper, Stepper.UnboxingLongStepper, Stepper.UnboxingShortStepper

Nested classes/interfaces inherited from interface java.util.Spliterator

java.util.Spliterator.OfDouble, java.util.Spliterator.OfInt, java.util.Spliterator.OfLong, java.util.Spliterator.OfPrimitive<T,T_CONS,T_SPLITR extends java.util.Spliterator.OfPrimitive<T,T_CONS,T_SPLITR>>

Field Summary

Fields inherited from interface java.util.Spliterator

CONCURRENT, DISTINCT, IMMUTABLE, NONNULL, ORDERED, SIZED, SORTED, SUBSIZED

Constructor Summary

Constructors

Constructor and Description
AccumulatorStepper(Accumulator<A> acc)

Method Summary

Modifier and Type	Method and Description
int	characteristics() Characteristics are bit flags that indicate runtime characteristics of this Stepper.
long	estimateSize()
void	foreach(scala.Function1<A,scala.runtime.BoxedUnit> f) Applies f to every remaining element in the collection.
void	forEachRemaining(java.util.function.Consumer<? super A> f)
boolean	hasNext()
A	next()
AnyStepper<A>	substep() Attempt to split this Stepper in half, with the new (returned) copy taking the first half of the collection, and this one advancing to cover the second half.
java.lang.String	toString()
boolean	tryAdvance(java.util.function.Consumer<? super A> f)
boolean	tryStep(scala.Function1<A,scala.runtime.BoxedUnit> f) If another element exists, apply `f` to it and return `true`; otherwise, return `false`.

Methods inherited from class java.lang.Object

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

Methods inherited from interface scala.compat.java8.collectionImpl.AnyStepper

hasStep, knownSize, nextStep, parStream, seqStream, spliterator, trySplit

Methods inherited from interface scala.compat.java8.collectionImpl.Stepper

accumulate

Methods inherited from interface scala.compat.java8.collectionImpl.StepperLike

anticipateParallelism, count, count, exists, find, fold, foldTo, iterator, reduce, to

Methods inherited from interface java.util.Iterator

remove

Methods inherited from interface java.util.Spliterator

getComparator, getExactSizeIfKnown, hasCharacteristics

Constructor Detail

AccumulatorStepper

public AccumulatorStepper(Accumulator<A> acc)

Method Detail

characteristics

public int characteristics()

Description copied from interface: StepperLike

Characteristics are bit flags that indicate runtime characteristics of this Stepper.

- Distinct means that no duplicates exist - Immutable means that the underlying collection is guaranteed not to change during traversal - NonNull means that no nulls will be returned during traversal - Sized means that the collection knows its exact size - SubSized means that sub-Steppers created with substep() will also know their own size. SubSized steppers must also be Sized.

The Java flags CONCURRENT and SORTED are not supported; modification of a concurrency-aware underlying collection is not guaranteed to be any safer than modification of any generic mutable collection, and if the underlying collection is ordered by virtue of sorting, Stepper will not keep track of that fact.

Specified by:

characteristics in interface java.util.Spliterator<A>

Specified by:

characteristics in interface StepperLike<A,AnyStepper<A>>

Returns:

(undocumented)

estimateSize

public long estimateSize()

Specified by:

estimateSize in interface java.util.Spliterator<A>

forEachRemaining

public void forEachRemaining(java.util.function.Consumer<? super A> f)

Specified by:

forEachRemaining in interface java.util.Iterator<A>

Specified by:

forEachRemaining in interface java.util.Spliterator<A>

Specified by:

forEachRemaining in interface AnyStepper<A>

foreach

public void foreach(scala.Function1<A,scala.runtime.BoxedUnit> f)

Description copied from interface: StepperLike

Applies f to every remaining element in the collection. This is a terminal operation.

Specified by:

foreach in interface StepperLike<A,AnyStepper<A>>

Parameters:

f - (undocumented)

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<A>

next

public A next()

Specified by:

next in interface java.util.Iterator<A>

substep

public AnyStepper<A> substep()

Description copied from interface: StepperLike

Attempt to split this Stepper in half, with the new (returned) copy taking the first half of the collection, and this one advancing to cover the second half. If subdivision is not possible or not advisable, substep() will return null.

Specified by:

substep in interface StepperLike<A,AnyStepper<A>>

Returns:

(undocumented)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

tryAdvance

public boolean tryAdvance(java.util.function.Consumer<? super A> f)

Specified by:

tryAdvance in interface java.util.Spliterator<A>

Specified by:

tryAdvance in interface AnyStepper<A>

tryStep

public boolean tryStep(scala.Function1<A,scala.runtime.BoxedUnit> f)

Description copied from interface: StepperLike

If another element exists, apply `f` to it and return `true`; otherwise, return `false`.

Specified by:

tryStep in interface AnyStepper<A>

Specified by:

tryStep in interface StepperLike<A,AnyStepper<A>>