Package com.github.benmanes.caffeine.cache

Class PWAW<K,V>

java.lang.Object

com.github.benmanes.caffeine.cache.Node<K,V>

com.github.benmanes.caffeine.cache.PW<K,V>

com.github.benmanes.caffeine.cache.PWA<K,V>

com.github.benmanes.caffeine.cache.PWAW<K,V>

All Implemented Interfaces:

AccessOrderDeque.AccessOrder<Node<K,V>>, NodeFactory<K,V>, WriteOrderDeque.WriteOrder<Node<K,V>>

Direct Known Subclasses:

PWAWMS, PWAWMW, PWAWR

class PWAW<K,V>
extends PWA<K,V>

WARNING: GENERATED CODE A cache entry that provides the following features:

• ExpireWrite
• StrongKeys (inherited)
• WeakValues (inherited)
• ExpireAccess (inherited)

Field Summary

Fields

Modifier and Type	Field	Description
(package private) Node<K,V>	nextInWriteOrder
(package private) Node<K,V>	previousInWriteOrder
protected static long	WRITE_TIME_OFFSET
(package private) long	writeTime

Fields inherited from class com.github.benmanes.caffeine.cache.PWA

ACCESS_TIME_OFFSET, accessTime, nextInAccessOrder, previousInAccessOrder

Fields inherited from class com.github.benmanes.caffeine.cache.PW

value, VALUE_OFFSET

Fields inherited from class com.github.benmanes.caffeine.cache.Node

PROBATION, PROTECTED, WINDOW

Fields inherited from interface com.github.benmanes.caffeine.cache.NodeFactory

DEAD_STRONG_KEY, DEAD_WEAK_KEY, RETIRED_STRONG_KEY, RETIRED_WEAK_KEY

Constructor Summary

Constructors

Constructor	Description
PWAW()
PWAW(java.lang.Object keyReference, V value, java.lang.ref.ReferenceQueue<V> valueReferenceQueue, int weight, long now)
PWAW(K key, java.lang.ref.ReferenceQueue<K> keyReferenceQueue, V value, java.lang.ref.ReferenceQueue<V> valueReferenceQueue, int weight, long now)

Method Summary

Modifier and Type	Method	Description
boolean	casVariableTime(long expect, long update)	Atomically sets the variable time to the given updated value if the current value equals the expected value and returns if the update was successful.
Node<K,V>	getNextInVariableOrder()
Node<K,V>	getNextInWriteOrder()	Retrieves the next element or null if either the element is unlinked or the last element on the deque.
Node<K,V>	getPreviousInVariableOrder()
Node<K,V>	getPreviousInWriteOrder()	Retrieves the previous element or null if either the element is unlinked or the first element on the deque.
long	getVariableTime()	Returns the variable expiration time, in nanoseconds.
long	getWriteTime()	Returns the time that this entry was last written, in ns.
Node<K,V>	newNode(java.lang.Object keyReference, V value, java.lang.ref.ReferenceQueue<V> valueReferenceQueue, int weight, long now)	Returns a node optimized for the specified features.
Node<K,V>	newNode(K key, java.lang.ref.ReferenceQueue<K> keyReferenceQueue, V value, java.lang.ref.ReferenceQueue<V> valueReferenceQueue, int weight, long now)	Returns a node optimized for the specified features.
void	setNextInVariableOrder(Node<K,V> nextInWriteOrder)
void	setNextInWriteOrder(Node<K,V> nextInWriteOrder)	Sets the next element or null if there is no link.
void	setPreviousInVariableOrder(Node<K,V> previousInWriteOrder)
void	setPreviousInWriteOrder(Node<K,V> previousInWriteOrder)	Sets the previous element or null if there is no link.
void	setVariableTime(long writeTime)	Sets the variable expiration time in nanoseconds.
void	setWriteTime(long writeTime)	Sets the write time in nanoseconds.

Methods inherited from class com.github.benmanes.caffeine.cache.PWA

getAccessTime, getNextInAccessOrder, getPreviousInAccessOrder, setAccessTime, setNextInAccessOrder, setPreviousInAccessOrder

Methods inherited from class com.github.benmanes.caffeine.cache.PW

containsValue, die, getKey, getKeyReference, getValue, getValueReference, isAlive, isDead, isRetired, retire, setValue, weakValues

Methods inherited from class com.github.benmanes.caffeine.cache.Node

casWriteTime, getPolicyWeight, getQueueType, getWeight, inMainProbation, inMainProtected, inWindow, makeMainProbation, makeMainProtected, makeWindow, setPolicyWeight, setQueueType, setWeight, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.github.benmanes.caffeine.cache.NodeFactory

newLookupKey, newReferenceKey, softValues

Field Detail

WRITE_TIME_OFFSET

protected static final long WRITE_TIME_OFFSET

writeTime

volatile long writeTime

previousInWriteOrder

Node<K,V> previousInWriteOrder

nextInWriteOrder

Node<K,V> nextInWriteOrder

Constructor Detail

PWAW

PWAW()

PWAW

PWAW(K key,
     java.lang.ref.ReferenceQueue<K> keyReferenceQueue,
     V value,
     java.lang.ref.ReferenceQueue<V> valueReferenceQueue,
     int weight,
     long now)

PWAW

PWAW(java.lang.Object keyReference,
     V value,
     java.lang.ref.ReferenceQueue<V> valueReferenceQueue,
     int weight,
     long now)

Method Detail

getPreviousInVariableOrder

public Node<K,V> getPreviousInVariableOrder()

Overrides:

getPreviousInVariableOrder in class PWA<K,V>

setPreviousInVariableOrder

public void setPreviousInVariableOrder(Node<K,V> previousInWriteOrder)

Overrides:

setPreviousInVariableOrder in class PWA<K,V>

getNextInVariableOrder

public Node<K,V> getNextInVariableOrder()

Overrides:

getNextInVariableOrder in class PWA<K,V>

setNextInVariableOrder

public void setNextInVariableOrder(Node<K,V> nextInWriteOrder)

Overrides:

setNextInVariableOrder in class PWA<K,V>

getVariableTime

public long getVariableTime()

Description copied from class: Node

Returns the variable expiration time, in nanoseconds.

Overrides:

getVariableTime in class PWA<K,V>

setVariableTime

public void setVariableTime(long writeTime)

Description copied from class: Node

Sets the variable expiration time in nanoseconds. This update may be set lazily and rely on the memory fence when the lock is released.

Overrides:

setVariableTime in class PWA<K,V>

casVariableTime

public boolean casVariableTime(long expect,
                               long update)

Description copied from class: Node

Atomically sets the variable time to the given updated value if the current value equals the expected value and returns if the update was successful.

Overrides:

casVariableTime in class PWA<K,V>

getWriteTime

public final long getWriteTime()

Description copied from class: Node

Returns the time that this entry was last written, in ns.

Overrides:

getWriteTime in class Node<K,V>

setWriteTime

public final void setWriteTime(long writeTime)

Description copied from class: Node

Sets the write time in nanoseconds. This update may be set lazily and rely on the memory fence when the lock is released.

Overrides:

setWriteTime in class Node<K,V>

getPreviousInWriteOrder

public final Node<K,V> getPreviousInWriteOrder()

Description copied from interface: WriteOrderDeque.WriteOrder

Retrieves the previous element or null if either the element is unlinked or the first element on the deque.

Specified by:

getPreviousInWriteOrder in interface WriteOrderDeque.WriteOrder<K>

Overrides:

getPreviousInWriteOrder in class Node<K,V>

setPreviousInWriteOrder

public final void setPreviousInWriteOrder(Node<K,V> previousInWriteOrder)

Description copied from interface: WriteOrderDeque.WriteOrder

Sets the previous element or null if there is no link.

Specified by:

setPreviousInWriteOrder in interface WriteOrderDeque.WriteOrder<K>

Overrides:

setPreviousInWriteOrder in class Node<K,V>

getNextInWriteOrder

public final Node<K,V> getNextInWriteOrder()

Description copied from interface: WriteOrderDeque.WriteOrder

Retrieves the next element or null if either the element is unlinked or the last element on the deque.

Specified by:

getNextInWriteOrder in interface WriteOrderDeque.WriteOrder<K>

Overrides:

getNextInWriteOrder in class Node<K,V>

setNextInWriteOrder

public final void setNextInWriteOrder(Node<K,V> nextInWriteOrder)

Description copied from interface: WriteOrderDeque.WriteOrder

Sets the next element or null if there is no link.

Specified by:

setNextInWriteOrder in interface WriteOrderDeque.WriteOrder<K>

Overrides:

setNextInWriteOrder in class Node<K,V>

newNode

public Node<K,V> newNode(K key,
                               java.lang.ref.ReferenceQueue<K> keyReferenceQueue,
                               V value,
                               java.lang.ref.ReferenceQueue<V> valueReferenceQueue,
                               int weight,
                               long now)

Description copied from interface: NodeFactory

Returns a node optimized for the specified features.

Specified by:

newNode in interface NodeFactory<K,V>

Overrides:

newNode in class PWA<K,V>

newNode

public Node<K,V> newNode(java.lang.Object keyReference,
                               V value,
                               java.lang.ref.ReferenceQueue<V> valueReferenceQueue,
                               int weight,
                               long now)

Description copied from interface: NodeFactory

Returns a node optimized for the specified features.

Specified by:

newNode in interface NodeFactory<K,V>

Overrides:

newNode in class PWA<K,V>