Package com.google.common.collect

Class MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>

java.lang.Object

java.util.concurrent.locks.ReentrantLock

com.google.common.collect.MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>

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

All Implemented Interfaces:

java.io.Serializable, java.util.concurrent.locks.Lock

Enclosing class:

MapMakerInternalMap<K,V,E extends MapMakerInternalMap.InternalEntry<K,V,E>,S extends MapMakerInternalMap.Segment<K,V,E,S>>

static final class MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>
extends MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>

Concrete implementation of MapMakerInternalMap.Segment for weak keys and weak values.

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.ref.ReferenceQueue<K>	queueForKeys
private java.lang.ref.ReferenceQueue<V>	queueForValues

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

count, map, maxSegmentSize, modCount, readCount, table, threshold

Constructor Summary

Constructors

Constructor	Description
WeakKeyWeakValueSegment(MapMakerInternalMap<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>> map, int initialCapacity, int maxSegmentSize)

Method Summary

Modifier and Type	Method	Description
MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>	castForTesting(MapMakerInternalMap.InternalEntry<K,V,?> entry)	Unsafe cast of the given entry to E, the type of the specific MapMakerInternalMap.InternalEntry implementation type.
(package private) java.lang.ref.ReferenceQueue<K>	getKeyReferenceQueueForTesting()	Unsafely extracts the key reference queue used by this segment.
(package private) java.lang.ref.ReferenceQueue<V>	getValueReferenceQueueForTesting()	Unsafely extracts the value reference queue used by this segment.
MapMakerInternalMap.WeakValueReference<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>>	getWeakValueReferenceForTesting(MapMakerInternalMap.InternalEntry<K,V,?> e)	Unsafely extracts the weak value reference inside of the given entry.
(package private) void	maybeClearReferenceQueues()	Clears the reference queues used by this segment, if any.
(package private) void	maybeDrainReferenceQueues()	Drains the reference queues used by this segment, if any.
MapMakerInternalMap.WeakValueReference<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>>	newWeakValueReferenceForTesting(MapMakerInternalMap.InternalEntry<K,V,?> e, V value)	Unsafely creates of a fresh MapMakerInternalMap.WeakValueReference, referencing the given value, for the given entry
(package private) MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>	self()	Returns this up-casted to the specific MapMakerInternalMap.Segment implementation type S.
void	setWeakValueReferenceForTesting(MapMakerInternalMap.InternalEntry<K,V,?> e, MapMakerInternalMap.WeakValueReference<K,V,? extends MapMakerInternalMap.InternalEntry<K,V,?>> valueReference)	Unsafely sets the weak value reference inside the given entry to be the given valueReference

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

clear, clearReferenceQueue, clearValueForTesting, containsKey, containsValue, copyEntry, copyForTesting, drainKeyReferenceQueue, drainValueReferenceQueue, expand, get, getEntry, getFirst, getLiveEntry, getLiveValue, getLiveValueForTesting, initTable, isCollected, newEntryArray, newEntryForTesting, postReadCleanup, preWriteCleanup, put, reclaimKey, reclaimValue, remove, remove, removeEntryForTesting, removeFromChain, removeFromChainForTesting, removeTableEntryForTesting, replace, replace, runCleanup, runLockedCleanup, setTableEntryForTesting, setValue, setValueForTesting, tryDrainReferenceQueues

Methods inherited from class java.util.concurrent.locks.ReentrantLock

getHoldCount, getOwner, getQueuedThreads, getQueueLength, getWaitingThreads, getWaitQueueLength, hasQueuedThread, hasQueuedThreads, hasWaiters, isFair, isHeldByCurrentThread, isLocked, lock, lockInterruptibly, newCondition, toString, tryLock, tryLock, unlock

Methods inherited from class java.lang.Object

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

Field Detail

queueForKeys

private final java.lang.ref.ReferenceQueue<K> queueForKeys

queueForValues

private final java.lang.ref.ReferenceQueue<V> queueForValues

Constructor Detail

WeakKeyWeakValueSegment

WeakKeyWeakValueSegment(MapMakerInternalMap<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>> map,
                        int initialCapacity,
                        int maxSegmentSize)

Method Detail

self

MapMakerInternalMap.WeakKeyWeakValueSegment<K,V> self()

Description copied from class: MapMakerInternalMap.Segment

Returns this up-casted to the specific MapMakerInternalMap.Segment implementation type S.

This method exists so that the MapMakerInternalMap.Segment code can be generic in terms of S, the type of the concrete implementation.

Specified by:

self in class MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>

getKeyReferenceQueueForTesting

java.lang.ref.ReferenceQueue<K> getKeyReferenceQueueForTesting()

Description copied from class: MapMakerInternalMap.Segment

Unsafely extracts the key reference queue used by this segment.

Overrides:

getKeyReferenceQueueForTesting in class MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>

getValueReferenceQueueForTesting

java.lang.ref.ReferenceQueue<V> getValueReferenceQueueForTesting()

Description copied from class: MapMakerInternalMap.Segment

Unsafely extracts the value reference queue used by this segment.

Overrides:

getValueReferenceQueueForTesting in class MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>

castForTesting

public MapMakerInternalMap.WeakKeyWeakValueEntry<K,V> castForTesting(MapMakerInternalMap.InternalEntry<K,V,?> entry)

Description copied from class: MapMakerInternalMap.Segment

Unsafe cast of the given entry to E, the type of the specific MapMakerInternalMap.InternalEntry implementation type.

This method is provided as a convenience for tests. Otherwise they'd need to be knowledgable about all the implementation details of our type system trickery.

Specified by:

castForTesting in class MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>

getWeakValueReferenceForTesting

public MapMakerInternalMap.WeakValueReference<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>> getWeakValueReferenceForTesting(MapMakerInternalMap.InternalEntry<K,V,?> e)

Description copied from class: MapMakerInternalMap.Segment

Unsafely extracts the weak value reference inside of the given entry.

Overrides:

getWeakValueReferenceForTesting in class MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>

newWeakValueReferenceForTesting

public MapMakerInternalMap.WeakValueReference<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>> newWeakValueReferenceForTesting(MapMakerInternalMap.InternalEntry<K,V,?> e,
                                                                                                                                                    V value)

Description copied from class: MapMakerInternalMap.Segment

Unsafely creates of a fresh MapMakerInternalMap.WeakValueReference, referencing the given value, for the given entry

Overrides:

newWeakValueReferenceForTesting in class MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>

setWeakValueReferenceForTesting

public void setWeakValueReferenceForTesting(MapMakerInternalMap.InternalEntry<K,V,?> e,
                                            MapMakerInternalMap.WeakValueReference<K,V,? extends MapMakerInternalMap.InternalEntry<K,V,?>> valueReference)

Description copied from class: MapMakerInternalMap.Segment

Unsafely sets the weak value reference inside the given entry to be the given valueReference

Overrides:

setWeakValueReferenceForTesting in class MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>

maybeDrainReferenceQueues

void maybeDrainReferenceQueues()

Description copied from class: MapMakerInternalMap.Segment

Drains the reference queues used by this segment, if any.

Overrides:

maybeDrainReferenceQueues in class MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>

maybeClearReferenceQueues

void maybeClearReferenceQueues()

Description copied from class: MapMakerInternalMap.Segment

Clears the reference queues used by this segment, if any.

Overrides:

maybeClearReferenceQueues in class MapMakerInternalMap.Segment<K,V,MapMakerInternalMap.WeakKeyWeakValueEntry<K,V>,MapMakerInternalMap.WeakKeyWeakValueSegment<K,V>>