org.hibernate.util

Class LRUMap

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap

org.hibernate.util.LRUMap

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map

public class LRUMap
extends java.util.LinkedHashMap
implements java.io.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).

Author:

Manuel Dominguez Sarmiento

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

Constructor Summary

Constructors

Constructor and Description
LRUMap(int maxEntries)

Method Summary

Methods

Modifier and Type	Method and Description
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

LRUMap

public LRUMap(int maxEntries)

Method Detail

removeEldestEntry

protected boolean removeEldestEntry(java.util.Map.Entry eldest)

Overrides:

removeEldestEntry in class java.util.LinkedHashMap