org.jboss.util.collection

Class WeakValueRef<K,V>

java.lang.Object

java.lang.ref.Reference<T>

java.lang.ref.WeakReference<V>

org.jboss.util.collection.WeakValueRef<K,V>

Type Parameters:

K - the key type

V - the value type

All Implemented Interfaces:

java.util.Map.Entry<K,V>, ValueRef<K,V>

class WeakValueRef<K,V>
extends java.lang.ref.WeakReference<V>
implements ValueRef<K,V>

Weak value ref.

Field Summary

Fields

Modifier and Type	Field and Description
K	key The key

Constructor Summary

Constructors

Modifier	Constructor and Description
private	WeakValueRef(K key, V val, java.lang.ref.ReferenceQueue<V> q) Create a new WeakValueRef.

Method Summary

Modifier and Type	Method and Description
(package private) static <K,V> WeakValueRef<K,V>	create(K key, V val, java.lang.ref.ReferenceQueue<V> q) Safely create a new WeakValueRef
K	getKey()
V	getValue()
V	setValue(V value)
java.lang.String	toString()

Methods inherited from class java.lang.ref.Reference

clear, enqueue, get, isEnqueued

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jboss.util.collection.ValueRef

get

Methods inherited from interface java.util.Map.Entry

comparingByKey, comparingByKey, comparingByValue, comparingByValue, equals, hashCode

Field Detail

key

public K key

The key

Constructor Detail

WeakValueRef

private WeakValueRef(K key,
                     V val,
                     java.lang.ref.ReferenceQueue<V> q)

Create a new WeakValueRef.

Parameters:

key - the key

val - the value

q - the reference queue

Method Detail

create

static <K,V> WeakValueRef<K,V> create(K key,
                                      V val,
                                      java.lang.ref.ReferenceQueue<V> q)

Safely create a new WeakValueRef

Type Parameters:

K - the key type

V - the value type

Parameters:

key - the key

val - the value

q - the reference queue

Returns:

the reference or null if the value is null

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 value)

Specified by:

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

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object