wicket.util.collections
Class MostRecentlyUsedMap

java.lang.Object
  extended by java.util.AbstractMap<K,V>
      extended by java.util.HashMap<K,V>
          extended by java.util.LinkedHashMap
              extended by wicket.util.collections.MostRecentlyUsedMap
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, java.util.Map

public class MostRecentlyUsedMap
extends java.util.LinkedHashMap

Holds a map of most recently used items of a given maximum size. Old entries are expired when the map exceeds that maximum size.

Author:
Jonathan Locke
See Also:
Serialized Form

Constructor Summary
MostRecentlyUsedMap(int maxEntries)
          Constructor
 
Method Summary
 java.lang.Object getRemovedValue()
           
protected  boolean removeEldestEntry(java.util.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

MostRecentlyUsedMap

public MostRecentlyUsedMap(int maxEntries)
Constructor

Parameters:
maxEntries - Maximum number of entries allowed in the map
Method Detail

getRemovedValue

public java.lang.Object getRemovedValue()
Returns:
Returns the removedValue.

removeEldestEntry

protected boolean removeEldestEntry(java.util.Map.Entry eldest)
Overrides:
removeEldestEntry in class java.util.LinkedHashMap
See Also:
LinkedHashMap.removeEldestEntry(java.util.Map.Entry)


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