CleaningWeakReferenceMap

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,WeakReference<V>>

org.jivesoftware.smack.util.CleaningWeakReferenceMap<K,V>

Type Parameters:: K - The key type.; V - The value type.

All Implemented Interfaces:: Serializable, Cloneable, Map<K,WeakReference<V>>

public class CleaningWeakReferenceMap<K,V> extends HashMap<K,WeakReference<V>>

Extends a HashMap with WeakReference values, so that weak references which have been cleared are periodically removed from the map. The cleaning occurs as part of put(K, java.lang.ref.WeakReference<V>), after a specific number (cleanInterval) of calls to put(K, java.lang.ref.WeakReference<V>).

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap
AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

Nested classes/interfaces inherited from interface java.util.Map
Map.Entry<K extends Object,V extends Object>
Constructor Summary

Constructors

Constructor

Description

CleaningWeakReferenceMap()

Initializes a new CleaningWeakReferenceMap instance with the default clean interval.

CleaningWeakReferenceMap(int cleanInterval)

Initializes a new CleaningWeakReferenceMap instance with a given clean interval.
Method Summary

Modifier and Type

Method

Description

WeakReference<V>

put(K key, WeakReference<V> value)

Methods inherited from class java.util.HashMap
clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, get, getOrDefault, isEmpty, keySet, merge, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap
equals, hashCode, toString

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map
equals, hashCode

Constructor Details
- CleaningWeakReferenceMap
  
  public CleaningWeakReferenceMap()
  
  Initializes a new CleaningWeakReferenceMap instance with the default clean interval.
- CleaningWeakReferenceMap
  
  public CleaningWeakReferenceMap(int cleanInterval)
  
  Initializes a new CleaningWeakReferenceMap instance with a given clean interval.
  
  Parameters:
  
  cleanInterval - the number of calls to put(K, java.lang.ref.WeakReference<V>) after which the map will clean itself.
Method Details
- put
  
  public WeakReference<V> put(K key, WeakReference<V> value)
  
  Specified by:
  
  put in interface Map<K,V>
  
  Overrides:
  
  put in class HashMap<K,WeakReference<V>>