Package org.infinispan.util

Class CacheSetMapper<E,R>

java.lang.Object

java.util.AbstractCollection<R>

org.infinispan.util.CollectionMapper<E,R>

org.infinispan.util.SetMapper<E,R>

org.infinispan.util.CacheSetMapper<E,R>

All Implemented Interfaces:

Iterable<R>, Collection<R>, Set<R>, CacheCollection<R>, CacheSet<R>, org.infinispan.commons.util.CloseableIteratorCollection<R>, org.infinispan.commons.util.CloseableIteratorSet<R>

public class CacheSetMapper<E,R>
extends SetMapper<E,R>
implements CacheSet<R>

A CacheSet that allows for a different set to be mapped as a different instance wtih values replaced on request. This is useful as a cache set is normally lazily evaluated to prevent having to pull all values into memory which can be a lot faster when checking single values and can also prevent out of memory issues.

Since:

9.0

Author:

wburns

Field Summary

Fields

Modifier and Type	Field	Description
protected CacheSet<E>	realSet

Fields inherited from class org.infinispan.util.CollectionMapper

mapper, realCollection

Constructor Summary

Constructors

Constructor	Description
CacheSetMapper(CacheSet<E> realSet, Function<? super E,? extends R> mapper)

Method Summary

Modifier and Type	Method	Description
org.infinispan.commons.util.CloseableIterator<R>	iterator()
CacheStream<R>	parallelStream()
org.infinispan.commons.util.CloseableSpliterator<R>	spliterator()
CacheStream<R>	stream()

Methods inherited from class org.infinispan.util.CollectionMapper

add, addAll, clear, forEach, isEmpty, remove, removeAll, retainAll, size

Methods inherited from class java.util.AbstractCollection

contains, containsAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

removeIf, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, remove, removeAll, retainAll, size, toArray, toArray

Field Detail

realSet

protected final CacheSet<E> realSet

Constructor Detail

CacheSetMapper

public CacheSetMapper(CacheSet<E> realSet,
                      Function<? super E,? extends R> mapper)

Method Detail

stream

public CacheStream<R> stream()

Description copied from interface: org.infinispan.commons.util.CloseableIteratorCollection

This stream should be explicitly closed after it has been used. Failure to do so could cause resources to not be freed properly

Specified by:

stream in interface CacheCollection<E>

Specified by:

stream in interface org.infinispan.commons.util.CloseableIteratorCollection<E>

Specified by:

stream in interface Collection<E>

Overrides:

stream in class CollectionMapper<E,R>

parallelStream

public CacheStream<R> parallelStream()

Description copied from interface: org.infinispan.commons.util.CloseableIteratorCollection

This stream should be explicitly closed after it has been used. Failure to do so could cause resources to not be freed properly

Specified by:

parallelStream in interface CacheCollection<E>

Specified by:

parallelStream in interface org.infinispan.commons.util.CloseableIteratorCollection<E>

Specified by:

parallelStream in interface Collection<E>

Overrides:

parallelStream in class CollectionMapper<E,R>

spliterator

public org.infinispan.commons.util.CloseableSpliterator<R> spliterator()

Description copied from interface: org.infinispan.commons.util.CloseableIteratorCollection

This spliterator should be explicitly closed after it has been used. Failure to do so could cause resources to not be freed properly

Specified by:

spliterator in interface org.infinispan.commons.util.CloseableIteratorCollection<E>

Specified by:

spliterator in interface org.infinispan.commons.util.CloseableIteratorSet<E>

Specified by:

spliterator in interface Collection<E>

Specified by:

spliterator in interface Iterable<E>

Specified by:

spliterator in interface Set<E>

Overrides:

spliterator in class CollectionMapper<E,R>

iterator

public org.infinispan.commons.util.CloseableIterator<R> iterator()

Description copied from interface: org.infinispan.commons.util.CloseableIteratorCollection

This iterator should be explicitly closed when iteration upon it is completed. Failure to do so could cause resources to not be freed properly

Specified by:

iterator in interface org.infinispan.commons.util.CloseableIteratorCollection<E>

Specified by:

iterator in interface Collection<E>

Specified by:

iterator in interface Iterable<E>

Specified by:

iterator in interface Set<E>

Overrides:

iterator in class CollectionMapper<E,R>