Package org.apache.sis.util.collection

Class WeakValueHashMap.Entry

java.lang.Object

java.lang.ref.Reference<T>

java.lang.ref.WeakReference<E>

org.apache.sis.util.collection.WeakEntry<V>

org.apache.sis.util.collection.WeakValueHashMap.Entry

All Implemented Interfaces:

Map.Entry<K,V>, Disposable

Enclosing class:

WeakValueHashMap<K,V>

private final class WeakValueHashMap.Entry
extends WeakEntry<V>
implements Map.Entry<K,V>

An entry in the WeakValueHashMap. This is a weak reference to a value together with a strong reference to a key.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final K	key	The key.

Fields inherited from class org.apache.sis.util.collection.WeakEntry

hash, HASH_MASK, MIN_CAPACITY, next, REHASH_DELAY

Constructor Summary

Constructors

Constructor	Description
Entry(K key, V value, WeakValueHashMap<K,V>.Entry next, int hash)	Constructs a new weak reference.

Method Summary

Modifier and Type	Method	Description
void	dispose()	Invoked by ReferenceQueueConsumer for removing the reference from the enclosing collection.
boolean	equals(Object other)	Compares the specified object with this entry for equality.
K	getKey()	Returns the key corresponding to this entry.
V	getValue()	Returns the value corresponding to this entry.
int	hashCode()	Returns the hash code value for this map entry.
V	setValue(V value)	Replaces the value corresponding in this entry with the specified value.

Methods inherited from class org.apache.sis.util.collection.WeakEntry

count, lowerCapacityThreshold, rehash, removeFrom, upperCapacityThreshold

Methods inherited from class java.lang.ref.Reference

clear, enqueue, get, isEnqueued

Methods inherited from class java.lang.Object

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

Field Details

key

final K key

The key.

Constructor Details

Entry

Entry(K key,
 V value,
 WeakValueHashMap<K,V>.Entry next,
 int hash)

Constructs a new weak reference.

Method Details

getKey

public K getKey()

Returns the key corresponding to this entry.

Specified by:

getKey in interface Map.Entry<K,V>

getValue

public V getValue()

Returns the value corresponding to this entry.

Specified by:

getValue in interface Map.Entry<K,V>

setValue

public V setValue(V value)

Replaces the value corresponding in this entry with the specified value. This method can be used only for setting the value to null.

Specified by:

setValue in interface Map.Entry<K,V>

dispose

public void dispose()

Invoked by ReferenceQueueConsumer for removing the reference from the enclosing collection.

Specified by:

dispose in interface Disposable

equals

public boolean equals(Object other)

Compares the specified object with this entry for equality.

Specified by:

equals in interface Map.Entry<K,V>

Overrides:

equals in class Object

hashCode

public int hashCode()

Returns the hash code value for this map entry. This hash code is not stable, since it will change after GC collect the value.

Specified by:

hashCode in interface Map.Entry<K,V>

Overrides:

hashCode in class Object