Class SoftCacheMap<K,​V>

  • All Implemented Interfaces:
    java.util.Map<K,​V>

    public class SoftCacheMap<K,​V>
    extends java.lang.Object
    implements java.util.Map<K,​V>
    Class to manage a "soft" HaspMap that keeps its keys as soft references so they can be reclaimed if needed. Useful for caching.
    • Nested Class Summary

      • 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
      SoftCacheMap​(int cacheSize)
      Constructs a new SoftCacheMap that has at most cacheSize entries.
    • 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)  
      java.util.Set<java.util.Map.Entry<K,​V>> entrySet()  
      V get​(java.lang.Object key)  
      boolean isEmpty()  
      java.util.Set<K> keySet()  
      V put​(K key, V value)  
      void putAll​(java.util.Map<? extends K,​? extends V> t)  
      V remove​(java.lang.Object key)  
      int size()  
      java.util.Collection<V> 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
    • Constructor Detail

      • SoftCacheMap

        public SoftCacheMap​(int cacheSize)
        Constructs a new SoftCacheMap that has at most cacheSize entries.
        Parameters:
        cacheSize - the max number of entries to cache.
    • Method Detail

      • put

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

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

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

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

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

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

        public boolean containsValue​(java.lang.Object value)
        Specified by:
        containsValue in interface java.util.Map<K,​V>
        See Also:
        Map.containsValue(java.lang.Object)
      • values

        public java.util.Collection<V> values()
        Specified by:
        values in interface java.util.Map<K,​V>
        See Also:
        Map.values()
      • putAll

        public void putAll​(java.util.Map<? extends K,​? extends V> t)
        Specified by:
        putAll in interface java.util.Map<K,​V>
        See Also:
        Map.putAll(java.util.Map)
      • entrySet

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

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

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