Package org.infinispan.commons.util

Class SpliteratorMapper<E,S>

java.lang.Object

org.infinispan.commons.util.SpliteratorMapper<E,S>

All Implemented Interfaces:

AutoCloseable, Spliterator<S>, CloseableSpliterator<S>

public class SpliteratorMapper<E,S>
extends Object
implements CloseableSpliterator<S>

A spliterator that has been mapped from another spliterator. This is nice to only lazily convert these values, so that you can convert across multiple threads or if the entire spliterator is not consumed.

This spliterator will always throw an IllegalStateException upon invocation of Spliterator.getComparator() since there is no trivial way of converting this with a mapper.

Since:

9.0

Author:

wburns

Nested Class Summary

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

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

Field Summary

Fields

Modifier and Type	Field	Description
protected final Function<? super E,? extends S>	mapper
protected final Spliterator<E>	spliterator

Fields inherited from interface java.util.Spliterator

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

Constructor Summary

Constructors

Constructor	Description
SpliteratorMapper(Spliterator<E> spliterator, Function<? super E,? extends S> mapper)

Method Summary

Modifier and Type	Method	Description
int	characteristics()
void	close()
long	estimateSize()
void	forEachRemaining(Consumer<? super S> action)
long	getExactSizeIfKnown()
boolean	hasCharacteristics(int characteristics)
boolean	tryAdvance(Consumer<? super S> action)
Spliterator<S>	trySplit()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Spliterator

getComparator

Field Details

spliterator

protected final Spliterator<E> spliterator

mapper

protected final Function<? super E,? extends S> mapper

Constructor Details

SpliteratorMapper

public SpliteratorMapper(Spliterator<E> spliterator,
 Function<? super E,? extends S> mapper)

Method Details

tryAdvance

public boolean tryAdvance(Consumer<? super S> action)

Specified by:

tryAdvance in interface Spliterator<E>

trySplit

public Spliterator<S> trySplit()

Specified by:

trySplit in interface Spliterator<E>

estimateSize

public long estimateSize()

Specified by:

estimateSize in interface Spliterator<E>

characteristics

public int characteristics()

Specified by:

characteristics in interface Spliterator<E>

forEachRemaining

public void forEachRemaining(Consumer<? super S> action)

Specified by:

forEachRemaining in interface Spliterator<E>

getExactSizeIfKnown

public long getExactSizeIfKnown()

Specified by:

getExactSizeIfKnown in interface Spliterator<E>

hasCharacteristics

public boolean hasCharacteristics(int characteristics)

Specified by:

hasCharacteristics in interface Spliterator<E>

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface CloseableSpliterator<E>