Package io.pravega.common.util

Class CopyOnWriteHashMap<K,​V>

  • All Implemented Interfaces:
    java.util.Map<K,​V>
    public class CopyOnWriteHashMap<K,​V>
extends java.lang.Object
implements java.util.Map<K,​V>
    Wrapper class for HashMap that performs synchronized copy-on-write operations for any modification of its content. It also provides a method to access the inner HashMap with the actual contents.

    • 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>

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void clear()  
      boolean containsKey​(java.lang.Object k)  
      boolean containsValue​(java.lang.Object v)  
      java.util.Set<java.util.Map.Entry<K,​V>> entrySet()  
      V get​(java.lang.Object k)  
      java.util.Map<K,​V> getInnerMap()  
      boolean isEmpty()  
      java.util.Set<K> keySet()  
      V put​(K k, V v)  
      void putAll​(java.util.Map<? extends K,​? extends V> entries)  
      V putIfAbsent​(K k, V v)  
      V remove​(java.lang.Object key)  
      boolean remove​(java.lang.Object k, java.lang.Object v)  
      V replace​(K k, V v)  
      boolean replace​(K k, V original, V replacement)  
      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, replaceAll

    • Constructor Detail

      • CopyOnWriteHashMap

        public CopyOnWriteHashMap()

      • CopyOnWriteHashMap

        public CopyOnWriteHashMap​(java.util.Map<K,​V> map)

    • Method Detail

      • getInnerMap

        public java.util.Map<K,​V> getInnerMap()

      • put

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

      • putAll

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

      • putIfAbsent

        public V putIfAbsent​(K k,
                     V v)
        Specified by:
        putIfAbsent 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>

      • remove

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

      • replace

        public boolean replace​(K k,
                       V original,
                       V replacement)
        Specified by:
        replace in interface java.util.Map<K,​V>

      • replace

        public V replace​(K k,
                 V v)
        Specified by:
        replace in interface java.util.Map<K,​V>

      • containsKey

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

      • containsValue

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

      • entrySet

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

      • get

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

      • isEmpty

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

      • keySet

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

      • size

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

      • values

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

      • clear

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