Class LRUMap

  extended by java.util.AbstractMap<K,V>
      extended by java.util.HashMap<K,V>
          extended by java.util.LinkedHashMap
              extended by org.hibernate.util.LRUMap
All Implemented Interfaces:
Serializable, Cloneable, Map

public class LRUMap
extends LinkedHashMap
implements Serializable

A simple LRU cache that implements the Map interface. Instances are not thread-safe and should be synchronized externally, for instance by using Collections.synchronizedMap(java.util.Map).

Manuel Dominguez Sarmiento
See Also:
Serialized Form

Nested Class Summary
Nested classes/interfaces inherited from class java.util.AbstractMap
AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>
Constructor Summary
LRUMap(int maxEntries)
Method Summary
protected  boolean removeEldestEntry(Map.Entry eldest)
Methods inherited from class java.util.LinkedHashMap
clear, containsValue, get
Methods inherited from class java.util.HashMap
clone, containsKey, entrySet, isEmpty, keySet, put, putAll, remove, 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
containsKey, entrySet, equals, hashCode, isEmpty, keySet, put, putAll, remove, size, values

Constructor Detail


public LRUMap(int maxEntries)
Method Detail


protected boolean removeEldestEntry(Map.Entry eldest)
removeEldestEntry in class LinkedHashMap

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