jadex.util.collection
Class LRU

java.lang.Object
  java.util.AbstractMap
      java.util.HashMap
          java.util.LinkedHashMap
              jadex.util.collection.LRU

All Implemented Interfaces:

Serializable, Cloneable, Map

public class LRU
extends LinkedHashMap

A least recently used map.

See Also:

Serialized Form

Constructor Summary

LRU(int max)
Create a new LRU.

LRU(int max, ILRUEntryCleaner cleaner)
Create a new LRU.

Method Summary

int	getMaxEntries() Get the maximum number of the
boolean	removeEldestEntry(Map.Entry eldest) Remove the eldest entry.
void	setCleaner(ILRUEntryCleaner cleaner) Set the cleaner object.
void	setMaxEntries(int max) Set the maximum number of entries.

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

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

LRU

public LRU(int max)

Create a new LRU.

Parameters:

max - The maximum number of entries.

LRU

public LRU(int max,
           ILRUEntryCleaner cleaner)

Create a new LRU.

Parameters:

max - The maximum number of entries.

Method Detail

getMaxEntries

public int getMaxEntries()

Get the maximum number of the

Returns:

The maximum number of entries.

setMaxEntries

public void setMaxEntries(int max)

Set the maximum number of entries.

Parameters:

max - The maximum number of entries.

setCleaner

public void setCleaner(ILRUEntryCleaner cleaner)

Set the cleaner object.

Parameters:

cleaner - The cleaner object.

removeEldestEntry

public boolean removeEldestEntry(Map.Entry eldest)

Remove the eldest entry.

Overrides:

removeEldestEntry in class LinkedHashMap

Parameters:

eldest - The eldest entry.

Returns:

True if need to be removed.