Package com.github.benmanes.caffeine.cache

Class PDR<K,V>

java.lang.Object

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

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

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

All Implemented Interfaces:

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

Direct Known Subclasses:

PDRMS, PDRMW

class PDR<K,V>
extends PD<K,V>

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

• RefreshWrite
• StrongKeys (inherited)
• SoftValues (inherited)

Field Summary

Fields

Modifier and Type	Field	Description
protected static long	WRITE_TIME_OFFSET
(package private) long	writeTime

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

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
PDR()
PDR(java.lang.Object keyReference, V value, java.lang.ref.ReferenceQueue<V> valueReferenceQueue, int weight, long now)
PDR(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	casWriteTime(long expect, long update)	Atomically sets the write time to the given updated value if the current value equals the expected value and returns if the update was successful.
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	setWriteTime(long writeTime)	Sets the write time in nanoseconds.

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

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

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

casVariableTime, getAccessTime, getNextInAccessOrder, getNextInVariableOrder, getNextInWriteOrder, getPolicyWeight, getPreviousInAccessOrder, getPreviousInVariableOrder, getPreviousInWriteOrder, getQueueType, getVariableTime, getWeight, inMainProbation, inMainProtected, inWindow, makeMainProbation, makeMainProtected, makeWindow, setAccessTime, setNextInAccessOrder, setNextInVariableOrder, setNextInWriteOrder, setPolicyWeight, setPreviousInAccessOrder, setPreviousInVariableOrder, setPreviousInWriteOrder, setQueueType, setVariableTime, 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, weakValues

Field Detail

WRITE_TIME_OFFSET

protected static final long WRITE_TIME_OFFSET

writeTime

volatile long writeTime

Constructor Detail

PDR

PDR()

PDR

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

PDR

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

Method Detail

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>

casWriteTime

public final boolean casWriteTime(long expect,
                                  long update)

Description copied from class: Node

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

Overrides:

casWriteTime 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 PD<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 PD<K,V>