org.apache.openjpa.lib.util
Class LRUMap

java.lang.Object
  org.apache.commons.collections.map.LRUMap
      org.apache.openjpa.lib.util.LRUMap

All Implemented Interfaces:

Map, SizedMap

public class LRUMap
extends LRUMap
implements SizedMap

Extension of the commons LRUMap that can change its maximum size.

Author:

Abe White

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

LRUMap()

LRUMap(int maxSize)

LRUMap(int maxSize, float loadFactor)

LRUMap(Map map)

Method Summary

protected void	doReadObject(ObjectInputStream in)
protected void	doWriteObject(ObjectOutputStream out)
int	getMaxSize() The maximum number of entries, or Integer.MAX_VALUE for no limit.
boolean	isFull() Whether the map is full.
int	maxSize()
void	overflowRemoved(Object key, Object value) Overridable callback for when an overflow entry is automatically removed.
protected boolean	removeLRU(LinkEntry entry)
void	setMaxSize(int max) The maximum number of entries, or Integer.MAX_VALUE for no limit.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, 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

LRUMap

public LRUMap()

LRUMap

public LRUMap(int maxSize)

LRUMap

public LRUMap(int maxSize,
              float loadFactor)

LRUMap

public LRUMap(Map map)

Method Detail

getMaxSize

public int getMaxSize()

Description copied from interface: SizedMap

The maximum number of entries, or Integer.MAX_VALUE for no limit.

Specified by:

getMaxSize in interface SizedMap

setMaxSize

public void setMaxSize(int max)

Description copied from interface: SizedMap

The maximum number of entries, or Integer.MAX_VALUE for no limit.

Specified by:

setMaxSize in interface SizedMap

overflowRemoved

public void overflowRemoved(Object key,
                            Object value)

Description copied from interface: SizedMap

Overridable callback for when an overflow entry is automatically removed.

Specified by:

overflowRemoved in interface SizedMap

maxSize

public int maxSize()

isFull

public boolean isFull()

Description copied from interface: SizedMap

Whether the map is full.

Specified by:

isFull in interface SizedMap

removeLRU

protected boolean removeLRU(LinkEntry entry)

doWriteObject

protected void doWriteObject(ObjectOutputStream out)
                      throws IOException

Throws:

IOException

doReadObject

protected void doReadObject(ObjectInputStream in)
                     throws IOException,
                            ClassNotFoundException

Throws:

IOException

ClassNotFoundException