Package org.onemind.commons.java.datastructure

Class MruMap

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable, java.util.Map
    public class MruMap
extends java.util.HashMap
implements java.util.Map
    Most recently used map (implementation based on mrulist)
    Version:
    $Id: MruMap.java,v 1.3 2004/10/31 15:57:55 thlee Exp $ $Name: $
    Author:
    TiongHiang Lee (thlee@onemindsoft.org)
    See Also:
    Serialized Form

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      private class  MruMap.InnerMruList
      For MruMap implementation

      • 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>

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private MruList _mruList
      the list *

    • Constructor Summary

      Constructors 
      Constructor Description
      MruMap()
      MruMap​(long size, long timeout)
      Constructor

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void clear()
      void expire​(MruList list, java.lang.Object obj)
      java.lang.Object get​(java.lang.Object key)
      java.lang.Object put​(java.lang.Object key, java.lang.Object value)
      void putAll​(java.util.Map t)
      java.lang.Object remove​(java.lang.Object key)
      void truncate​(MruList list, java.lang.Object obj)

      • Methods inherited from class java.util.HashMap

        clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, getOrDefault, isEmpty, keySet, merge, putIfAbsent, 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

        compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, getOrDefault, hashCode, isEmpty, keySet, merge, putIfAbsent, remove, replace, replace, replaceAll, size, values

    • Field Detail

      • _mruList

        private MruList _mruList
        the list *

    • Constructor Detail

      • MruMap

        public MruMap()

      • MruMap

        public MruMap​(long size,
              long timeout)
        Constructor
        Parameters:
        size - the limit of the map (0 for never timeout)
        timeout - the timeout (0 for never expire)

    • Method Detail

      • clear

        public void clear()
        Specified by:
        clear in interface java.util.Map
        Overrides:
        clear in class java.util.HashMap

      • get

        public java.lang.Object get​(java.lang.Object key)
        Specified by:
        get in interface java.util.Map
        Overrides:
        get in class java.util.HashMap

      • put

        public java.lang.Object put​(java.lang.Object key,
                            java.lang.Object value)
        Specified by:
        put in interface java.util.Map
        Overrides:
        put in class java.util.HashMap

      • putAll

        public void putAll​(java.util.Map t)
        Specified by:
        putAll in interface java.util.Map
        Overrides:
        putAll in class java.util.HashMap

      • remove

        public java.lang.Object remove​(java.lang.Object key)
        Specified by:
        remove in interface java.util.Map
        Overrides:
        remove in class java.util.HashMap

      • expire

        public void expire​(MruList list,
                   java.lang.Object obj)

      • truncate

        public void truncate​(MruList list,
                     java.lang.Object obj)