jadex.commons.collection

Class WeakValueMap<K,V>

java.lang.Object

jadex.commons.collection.WeakValueMap<K,V>

All Implemented Interfaces:

java.util.Map<K,V>

public class WeakValueMap<K,V>
extends java.lang.Object
implements java.util.Map<K,V>

A map with weak values.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

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

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Map<K,WeakEntry<V>>	contents The contents.
protected java.lang.ref.ReferenceQueue<V>	queue The reference queue.

Constructor Summary

Constructors

Constructor and Description
WeakValueMap() Create a new weak value map.

Method Summary

Modifier and Type	Method and Description
void	clear() Clear the map.
boolean	containsKey(java.lang.Object key) Test if key contained.
boolean	containsValue(java.lang.Object value) Test if value contained.
java.util.Set<java.util.Map.Entry<K,V>>	entrySet() Get the entries.
protected void	expungeStaleEntries() Remove garbage collected entries.
V	get(java.lang.Object key) Get value for key.
boolean	isEmpty() Check if empty.
java.util.Set<K>	keySet() Get the key set.
V	put(K key, V value) Add value for key.
void	putAll(java.util.Map<? extends K,? extends V> m) Add all mappings.
V	remove(java.lang.Object key) Remove value for key.
int	size() Get the size.
java.util.Collection<V>	values() Get the values.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

Field Detail

contents

protected java.util.Map<K,WeakEntry<V>> contents

The contents.

queue

protected java.lang.ref.ReferenceQueue<V> queue

The reference queue.

Constructor Detail

WeakValueMap

public WeakValueMap()

Create a new weak value map.

Method Detail

size

public int size()

Get the size.

Specified by:

size in interface java.util.Map<K,V>

isEmpty

public boolean isEmpty()

Check if empty.

Specified by:

isEmpty in interface java.util.Map<K,V>

containsKey

public boolean containsKey(java.lang.Object key)

Test if key contained.

Specified by:

containsKey in interface java.util.Map<K,V>

containsValue

public boolean containsValue(java.lang.Object value)

Test if value contained.

Specified by:

containsValue in interface java.util.Map<K,V>

get

public V get(java.lang.Object key)

Get value for key.

Specified by:

get in interface java.util.Map<K,V>

put

public V put(K key,
             V value)

Add value for key.

Specified by:

put in interface java.util.Map<K,V>

remove

public V remove(java.lang.Object key)

Remove value for key.

Specified by:

remove in interface java.util.Map<K,V>

clear

public void clear()

Clear the map.

Specified by:

clear in interface java.util.Map<K,V>

putAll

public void putAll(java.util.Map<? extends K,? extends V> m)

Add all mappings.

Specified by:

putAll in interface java.util.Map<K,V>

keySet

public java.util.Set<K> keySet()

Get the key set.

Specified by:

keySet in interface java.util.Map<K,V>

values

public java.util.Collection<V> values()

Get the values.

Specified by:

values in interface java.util.Map<K,V>

entrySet

public java.util.Set<java.util.Map.Entry<K,V>> entrySet()

Get the entries.

Specified by:

entrySet in interface java.util.Map<K,V>

expungeStaleEntries

protected final void expungeStaleEntries()

Remove garbage collected entries.