oracle.javatools.util

Class Maps.WeakEntry<K,V>

java.lang.Object

java.lang.ref.Reference<T>

java.lang.ref.WeakReference<V>

oracle.javatools.util.Maps.WeakEntry<K,V>

Type Parameters:

K - The type of key stored by the entry.

V - The type of value stored by the entry.

All Implemented Interfaces:

java.util.Map.Entry<K,V>, Maps.BaseEntry<K,V>

Enclosing class:

Maps

public static class Maps.WeakEntry<K,V>
extends java.lang.ref.WeakReference<V>
implements Maps.BaseEntry<K,V>

An Maps.BaseEntry implementation which holds its value with a WeakReference.

Because the referent of a soft reference cannot be changed, the setValue(V) method throws UnsupportedOperationException if invoked.

See Also:

Maps.WeakHashMap

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Maps.WeakEntry(int keyHashCode, K key, V value, Maps.WeakEntry<K,V> next, java.lang.ref.ReferenceQueue<V> queue)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object object)
K	getKey()
Maps.BaseEntry<K,V>	getNext() Gets the next entry in the containing hash chain of the containing map.
V	getValue()
int	hashCode()
boolean	isMutable() Gets whether this entry is mutable, in particular whether Map.Entry.setValue(V) is supported.
int	keyHashCode() Gets the hash code of the key in this entry.
void	setNext(Maps.BaseEntry<K,V> next) Sets the next entry in the containing hash chain of the containing map.
V	setValue(V newValue)
java.lang.String	toString()

Methods inherited from class java.lang.ref.Reference

clear, enqueue, get, isEnqueued

Methods inherited from class java.lang.Object

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

Constructor Detail

Maps.WeakEntry

protected Maps.WeakEntry(int keyHashCode,
              K key,
              V value,
              Maps.WeakEntry<K,V> next,
              java.lang.ref.ReferenceQueue<V> queue)

Method Detail

getKey

public K getKey()

Specified by:

getKey in interface java.util.Map.Entry<K,V>

getValue

public V getValue()

Specified by:

getValue in interface java.util.Map.Entry<K,V>

setValue

public V setValue(V newValue)

Specified by:

setValue in interface java.util.Map.Entry<K,V>

getNext

public Maps.BaseEntry<K,V> getNext()

Description copied from interface: Maps.BaseEntry

Gets the next entry in the containing hash chain of the containing map.

Specified by:

getNext in interface Maps.BaseEntry<K,V>

setNext

public void setNext(Maps.BaseEntry<K,V> next)

Description copied from interface: Maps.BaseEntry

Sets the next entry in the containing hash chain of the containing map.

Specified by:

setNext in interface Maps.BaseEntry<K,V>

keyHashCode

public int keyHashCode()

Description copied from interface: Maps.BaseEntry

Gets the hash code of the key in this entry.

Specified by:

keyHashCode in interface Maps.BaseEntry<K,V>

isMutable

public boolean isMutable()

Description copied from interface: Maps.BaseEntry

Gets whether this entry is mutable, in particular whether Map.Entry.setValue(V) is supported.

Specified by:

isMutable in interface Maps.BaseEntry<K,V>

equals

public boolean equals(java.lang.Object object)

Specified by:

equals in interface java.util.Map.Entry<K,V>

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map.Entry<K,V>

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object