com.google.common.collect

Class MapMaker.ComputingMapAdapter<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

com.google.common.collect.MapMakerInternalMap<K,V>

com.google.common.collect.ComputingConcurrentHashMap<K,V>

com.google.common.collect.MapMaker.ComputingMapAdapter<K,V>

All Implemented Interfaces:

java.io.Serializable, java.util.concurrent.ConcurrentMap<K,V>, java.util.Map<K,V>

Enclosing class:

MapMaker

static final class MapMaker.ComputingMapAdapter<K,V>
extends ComputingConcurrentHashMap<K,V>
implements java.io.Serializable

Overrides get() to compute on demand. Also throws an exception when null is returned from a computation.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.collect.ComputingConcurrentHashMap

ComputingConcurrentHashMap.ComputingSegment<K,V>, ComputingConcurrentHashMap.ComputingSerializationProxy<K,V>

Nested classes/interfaces inherited from class com.google.common.collect.MapMakerInternalMap

MapMakerInternalMap.AbstractReferenceEntry<K,V>, MapMakerInternalMap.AbstractSerializationProxy<K,V>, MapMakerInternalMap.CleanupMapTask, MapMakerInternalMap.EntryFactory, MapMakerInternalMap.EntryIterator, MapMakerInternalMap.EntrySet, MapMakerInternalMap.EvictionQueue<K,V>, MapMakerInternalMap.ExpirationQueue<K,V>, MapMakerInternalMap.HashIterator<E>, MapMakerInternalMap.KeyIterator, MapMakerInternalMap.KeySet, MapMakerInternalMap.ReferenceEntry<K,V>, MapMakerInternalMap.Segment<K,V>, MapMakerInternalMap.SoftEntry<K,V>, MapMakerInternalMap.SoftEvictableEntry<K,V>, MapMakerInternalMap.SoftExpirableEntry<K,V>, MapMakerInternalMap.SoftExpirableEvictableEntry<K,V>, MapMakerInternalMap.SoftValueReference<K,V>, MapMakerInternalMap.Strength, MapMakerInternalMap.StrongEntry<K,V>, MapMakerInternalMap.StrongEvictableEntry<K,V>, MapMakerInternalMap.StrongExpirableEntry<K,V>, MapMakerInternalMap.StrongExpirableEvictableEntry<K,V>, MapMakerInternalMap.StrongValueReference<K,V>, MapMakerInternalMap.ValueIterator, MapMakerInternalMap.ValueReference<K,V>, MapMakerInternalMap.Values, MapMakerInternalMap.WeakEntry<K,V>, MapMakerInternalMap.WeakEvictableEntry<K,V>, MapMakerInternalMap.WeakExpirableEntry<K,V>, MapMakerInternalMap.WeakExpirableEvictableEntry<K,V>, MapMakerInternalMap.WeakValueReference<K,V>, MapMakerInternalMap.WriteThroughEntry

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

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

java.util.Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
private static long	serialVersionUID

Fields inherited from class com.google.common.collect.ComputingConcurrentHashMap

computingFunction

Fields inherited from class com.google.common.collect.MapMakerInternalMap

CLEANUP_EXECUTOR_DELAY_SECS, concurrencyLevel, CONTAINS_VALUE_RETRIES, DISCARDING_QUEUE, DRAIN_MAX, DRAIN_THRESHOLD, entryFactory, entrySet, expireAfterAccessNanos, expireAfterWriteNanos, keyEquivalence, keySet, keyStrength, MAX_SEGMENTS, MAXIMUM_CAPACITY, maximumSize, removalListener, removalNotificationQueue, segmentMask, segments, segmentShift, ticker, UNSET, valueEquivalence, values, valueStrength

Constructor Summary

Constructors

Constructor and Description
ComputingMapAdapter(MapMaker mapMaker, Function<? super K,? extends V> computingFunction)

Method Summary

Modifier and Type	Method and Description
V	get(java.lang.Object key)

Methods inherited from class com.google.common.collect.ComputingConcurrentHashMap

createSegment, getOrCompute, segmentFor, writeReplace

Methods inherited from class com.google.common.collect.MapMakerInternalMap

clear, connectEvictables, connectExpirables, containsKey, containsValue, copyEntry, discardingQueue, entrySet, evictsBySize, expires, expiresAfterAccess, expiresAfterWrite, getEntry, getLiveValue, hash, isEmpty, isExpired, isExpired, isLive, keySet, newEntry, newSegmentArray, newValueReference, nullEntry, nullifyEvictable, nullifyExpirable, processPendingNotifications, put, putAll, putIfAbsent, reclaimKey, reclaimValue, rehash, remove, remove, replace, replace, size, unset, usesKeyReferences, usesValueReferences, values

Methods inherited from class java.util.AbstractMap

clone, equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.concurrent.ConcurrentMap

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, replaceAll

Methods inherited from interface java.util.Map

equals, hashCode

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

Constructor Detail

ComputingMapAdapter

ComputingMapAdapter(MapMaker mapMaker,
                    Function<? super K,? extends V> computingFunction)

Method Detail

get

public V get(java.lang.Object key)

Specified by:

get in interface java.util.Map<K,V>

Overrides:

get in class MapMakerInternalMap<K,V>