Package com.formdev.flatlaf.util

Class SoftCache<K,​V>

  • All Implemented Interfaces:
    java.util.Map<K,​V>
    public class SoftCache<K,​V>
extends java.lang.Object
implements java.util.Map<K,​V>
    A simple cache (map) that uses soft references for the values.
    Since:
    2

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      private static class  SoftCache.CacheReference<K,​V>  

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

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

    • Constructor Summary

      Constructors 
      Constructor Description
      SoftCache()  
      SoftCache​(int initialCapacity)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void clear()  
      boolean containsKey​(java.lang.Object key)  
      boolean containsValue​(java.lang.Object value)
      Not supported.
      java.util.Set<java.util.Map.Entry<K,​V>> entrySet()
      Not supported.
      private void expungeStaleEntries()  
      void forEach​(java.util.function.BiConsumer<? super K,​? super V> action)
      Not supported.
      V get​(java.lang.Object key)  
      private V getRef​(SoftCache.CacheReference<K,​V> ref)  
      boolean isEmpty()  
      java.util.Set<K> keySet()  
      V put​(K key, V value)  
      void putAll​(java.util.Map<? extends K,​? extends V> m)  
      V remove​(java.lang.Object key)  
      void replaceAll​(java.util.function.BiFunction<? super K,​? super V,​? extends V> function)
      Not supported.
      int size()  
      java.util.Collection<V> values()
      Not supported.

      • 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, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace

    • Constructor Detail

      • SoftCache

        public SoftCache()

      • SoftCache

        public SoftCache​(int initialCapacity)

    • Method Detail

      • size

        public int size()
        Specified by:
        size in interface java.util.Map<K,​V>

      • isEmpty

        public boolean isEmpty()
        Specified by:
        isEmpty in interface java.util.Map<K,​V>

      • containsKey

        public boolean containsKey​(java.lang.Object key)
        Specified by:
        containsKey in interface java.util.Map<K,​V>

      • containsValue

        public boolean containsValue​(java.lang.Object value)
        Not supported. Throws UnsupportedOperationException.
        Specified by:
        containsValue in interface java.util.Map<K,​V>

      • get

        public V get​(java.lang.Object key)
        Specified by:
        get in interface java.util.Map<K,​V>

      • put

        public V put​(K key,
             V value)
        Specified by:
        put in interface java.util.Map<K,​V>

      • remove

        public V remove​(java.lang.Object key)
        Specified by:
        remove in interface java.util.Map<K,​V>

      • putAll

        public void putAll​(java.util.Map<? extends K,​? extends V> m)
        Specified by:
        putAll in interface java.util.Map<K,​V>

      • clear

        public void clear()
        Specified by:
        clear in interface java.util.Map<K,​V>

      • keySet

        public java.util.Set<K> keySet()
        Specified by:
        keySet in interface java.util.Map<K,​V>

      • values

        public java.util.Collection<V> values()
        Not supported. Throws UnsupportedOperationException.
        Specified by:
        values in interface java.util.Map<K,​V>

      • entrySet

        public java.util.Set<java.util.Map.Entry<K,​V>> entrySet()
        Not supported. Throws UnsupportedOperationException.
        Specified by:
        entrySet in interface java.util.Map<K,​V>

      • forEach

        public void forEach​(java.util.function.BiConsumer<? super K,​? super V> action)
        Not supported. Throws UnsupportedOperationException.
        Specified by:
        forEach in interface java.util.Map<K,​V>

      • replaceAll

        public void replaceAll​(java.util.function.BiFunction<? super K,​? super V,​? extends V> function)
        Not supported. Throws UnsupportedOperationException.
        Specified by:
        replaceAll in interface java.util.Map<K,​V>

      • expungeStaleEntries

        private void expungeStaleEntries()