jadex.commons.collection

Class WeakKeyValueMap<K,V>

java.lang.Object

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

All Implemented Interfaces:

java.util.Map<K,V>

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

HashMap with weak reference on both sides.

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.WeakHashMap<K,java.lang.ref.WeakReference<V>>	content The internal delegate map.

Constructor Summary

Constructors

Constructor and Description
WeakKeyValueMap()
WeakKeyValueMap(java.util.Map<? extends K,? extends V> m)

Method Summary

Modifier and Type	Method and Description
void	clear() Clears map.
boolean	containsKey(java.lang.Object key) Returns if key is contained.
boolean	containsValue(java.lang.Object value) Returns if value is contained.
java.util.Set<java.util.Map.Entry<K,V>>	entrySet() Returns the entry set.
V	get(java.lang.Object key) Gets the value for key.
boolean	isEmpty() Returns if empty.
java.util.Set<K>	keySet() Returns the key set.
V	put(K key, V value) Adds value for key.
void	putAll(java.util.Map<? extends K,? extends V> m) Adds other map content.
V	remove(java.lang.Object key) Removes key.
int	size() Returns the size of the map.
java.util.Collection<V>	values() Returns 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

content

protected java.util.WeakHashMap<K,java.lang.ref.WeakReference<V>> content

The internal delegate map.

Constructor Detail

WeakKeyValueMap

public WeakKeyValueMap()

WeakKeyValueMap

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

Method Detail

size

public int size()

Returns the size of the map.

Specified by:

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

isEmpty

public boolean isEmpty()

Returns if empty.

Specified by:

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

containsKey

public boolean containsKey(java.lang.Object key)

Returns if key is contained.

Specified by:

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

containsValue

public boolean containsValue(java.lang.Object value)

Returns if value is contained.

Specified by:

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

get

public V get(java.lang.Object key)

Gets the value for key.

Specified by:

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

put

public V put(K key,
             V value)

Adds value for key.

Specified by:

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

remove

public V remove(java.lang.Object key)

Removes key.

Specified by:

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

putAll

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

Adds other map content.

Specified by:

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

clear

public void clear()

Clears map.

Specified by:

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

keySet

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

Returns the key set.

Specified by:

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

values

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

Returns the values.

Specified by:

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

entrySet

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

Returns the entry set.

Specified by:

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