Class CleaningWeakReferenceMap<K,​V>

  • Type Parameters:
    K - The key type.
    V - The value type.
    All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable, java.util.Map<K,​java.lang.ref.WeakReference<V>>

    public class CleaningWeakReferenceMap<K,​V>
    extends java.util.HashMap<K,​java.lang.ref.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

        java.util.AbstractMap.SimpleEntry<K extends java.lang.Object,​V extends java.lang.Object>, java.util.AbstractMap.SimpleImmutableEntry<K extends java.lang.Object,​V extends java.lang.Object>
      • Nested classes/interfaces inherited from interface java.util.Map

        java.util.Map.Entry<K extends java.lang.Object,​V extends java.lang.Object>
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.ref.WeakReference<V> put​(K key, java.lang.ref.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 Detail

      • CleaningWeakReferenceMap

        public CleaningWeakReferenceMap()
        Initializes a new CleaningWeakReferenceMap instance with the default clean interval.
    • Method Detail

      • put

        public java.lang.ref.WeakReference<V> put​(K key,
                                                  java.lang.ref.WeakReference<V> value)
        Specified by:
        put in interface java.util.Map<K,​V>
        Overrides:
        put in class java.util.HashMap<K,​java.lang.ref.WeakReference<V>>