Class MapContainer

  • All Implemented Interfaces:
    java.io.Serializable, java.util.concurrent.ConcurrentMap<java.lang.Object,​java.lang.Object>, java.util.Map<java.lang.Object,​java.lang.Object>, Container

    public final class MapContainer
    extends java.util.concurrent.ConcurrentHashMap<java.lang.Object,​java.lang.Object>
    implements Container
    A very basic, HashMap-based implementation of the hashmap container strategy, using nothing more than a basic hashmap to store key/value pairs. This works well for lots of gets and a reasonably high volume of removes; if few removes are required, and iterators are important to your particluar use-case of the cache, it's better to use the FastIteratingContainer, which can handle iterating at a higher speed, still has a map for accessing hash values, but has a higher removal cost.
    Since:
    1.0
    Version:
    $Revision: 8102 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $
    Author:
    Gregory Block, Ralf Joachim
    See Also:
    Serialized Form
    • Nested Class Summary

      • Nested classes/interfaces inherited from class java.util.concurrent.ConcurrentHashMap

        java.util.concurrent.ConcurrentHashMap.KeySetView<K extends java.lang.Object,​V extends java.lang.Object>
      • 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>
    • Constructor Summary

      Constructors 
      Constructor Description
      MapContainer()  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      long getTimestamp()
      Returns the timestamp of this container.
      java.util.Iterator<java.lang.Object> keyIterator()
      Returns an iterator over the keys contained in this container.
      void updateTimestamp()
      Set the timestamp of this container to System.currentTimeMillis().
      java.util.Iterator<java.lang.Object> valueIterator()
      Returns an iterator over the values contained in this container.
      • Methods inherited from class java.util.concurrent.ConcurrentHashMap

        clear, compute, computeIfAbsent, computeIfPresent, contains, containsKey, containsValue, elements, entrySet, equals, forEach, forEach, forEach, forEachEntry, forEachEntry, forEachKey, forEachKey, forEachValue, forEachValue, get, getOrDefault, hashCode, isEmpty, keys, keySet, keySet, mappingCount, merge, newKeySet, newKeySet, put, putAll, putIfAbsent, reduce, reduceEntries, reduceEntries, reduceEntriesToDouble, reduceEntriesToInt, reduceEntriesToLong, reduceKeys, reduceKeys, reduceKeysToDouble, reduceKeysToInt, reduceKeysToLong, reduceToDouble, reduceToInt, reduceToLong, reduceValues, reduceValues, reduceValuesToDouble, reduceValuesToInt, reduceValuesToLong, remove, remove, replace, replace, replaceAll, search, searchEntries, searchKeys, searchValues, size, toString, values
      • Methods inherited from class java.util.AbstractMap

        clone
      • Methods inherited from class java.lang.Object

        finalize, getClass, notify, notifyAll, wait, wait, wait
      • Methods inherited from interface java.util.Map

        clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, values
    • Constructor Detail

      • MapContainer

        public MapContainer()
    • Method Detail

      • updateTimestamp

        public void updateTimestamp()
        Set the timestamp of this container to System.currentTimeMillis().
        Specified by:
        updateTimestamp in interface Container
      • getTimestamp

        public long getTimestamp()
        Returns the timestamp of this container.
        Specified by:
        getTimestamp in interface Container
        Returns:
        The timestamp.
      • keyIterator

        public java.util.Iterator<java.lang.Object> keyIterator()
        Returns an iterator over the keys contained in this container. If the container is modified while an iteration is in progress, the results of the iteration is not affected and vice-versa.
        Specified by:
        keyIterator in interface Container
        Returns:
        An iterator over the keys currently contained in the container.
      • valueIterator

        public java.util.Iterator<java.lang.Object> valueIterator()
        Returns an iterator over the values contained in this container. If the container is modified while an iteration is in progress, the results of the iteration is not affected and vice-versa.
        Specified by:
        valueIterator in interface Container
        Returns:
        An iterator over the values currently contained in the container.