Class ConcurrentReferenceHashMap.HashEntry<K,V>

java.lang.Object

org.jboss.logmanager.ConcurrentReferenceHashMap.HashEntry<K,V>

Enclosing class:

ConcurrentReferenceHashMap<K,V>

static final class ConcurrentReferenceHashMap.HashEntry<K,V>
extends Object

ConcurrentReferenceHashMap list entry. Note that this is never exported out as a user-visible Map.Entry. Because the value field is volatile, not final, it is legal wrt the Java Memory Model for an unsynchronized reader to see null instead of initial value when read via a data race. Although a reordering leading to this is not likely to ever actually occur, the Segment.readValueUnderLock method is used as a backup in case a null (pre-initialized) value is ever seen in an unsynchronized access method.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final int	hash
(package private) final Object	keyRef
(package private) final ConcurrentReferenceHashMap.HashEntry<K,V>	next
(package private) Object	valueRef

Constructor Summary

Constructors

Constructor	Description
HashEntry(K key, int hash, ConcurrentReferenceHashMap.HashEntry<K,V> next, V value, ConcurrentReferenceHashMap.ReferenceType keyType, ConcurrentReferenceHashMap.ReferenceType valueType, ReferenceQueue<Object> refQueue)

Method Summary

Modifier and Type	Method	Description
(package private) final V	dereferenceValue(Object value)
(package private) final K	key()
(package private) static final <K,V> ConcurrentReferenceHashMap.HashEntry<K,V>[]	newArray(int i)
(package private) final Object	newKeyReference(K key, ConcurrentReferenceHashMap.ReferenceType keyType, ReferenceQueue<Object> refQueue)
(package private) final Object	newValueReference(V value, ConcurrentReferenceHashMap.ReferenceType valueType, ReferenceQueue<Object> refQueue)
(package private) final void	setValue(V value, ConcurrentReferenceHashMap.ReferenceType valueType, ReferenceQueue<Object> refQueue)
(package private) final V	value()

Methods inherited from class Object

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

Field Details

keyRef

final Object keyRef

hash

final int hash

valueRef

volatile Object valueRef

next

final ConcurrentReferenceHashMap.HashEntry<K,V> next

Constructor Details

HashEntry

HashEntry(K key,
 int hash,
 ConcurrentReferenceHashMap.HashEntry<K,V> next,
 V value,
 ConcurrentReferenceHashMap.ReferenceType keyType,
 ConcurrentReferenceHashMap.ReferenceType valueType,
 ReferenceQueue<Object> refQueue)

Method Details

newKeyReference

final Object newKeyReference(K key,
 ConcurrentReferenceHashMap.ReferenceType keyType,
 ReferenceQueue<Object> refQueue)

newValueReference

final Object newValueReference(V value,
 ConcurrentReferenceHashMap.ReferenceType valueType,
 ReferenceQueue<Object> refQueue)

key

final K key()

value

final V value()

dereferenceValue

final V dereferenceValue(Object value)

setValue

final void setValue(V value,
 ConcurrentReferenceHashMap.ReferenceType valueType,
 ReferenceQueue<Object> refQueue)

newArray

static final <K,V>
ConcurrentReferenceHashMap.HashEntry<K,V>[] newArray(int i)