com.amazonaws.services.dynamodbv2.datamodeling.internal

Class LRUCache<T>

java.lang.Object

com.amazonaws.services.dynamodbv2.datamodeling.internal.LRUCache<T>

Type Parameters:

T - value type

@ThreadSafe
public final class LRUCache<T>
extends java.lang.Object

A bounded cache that has a LRU eviction policy when the cache is full.

Constructor Summary

Constructors

Constructor and Description
LRUCache(int maxSize)

Method Summary

Modifier and Type	Method and Description
T	add(java.lang.String key, T value) Adds an entry to the cache, evicting the earliest entry if necessary.
void	clear()
T	get(java.lang.String key) Returns the value of the given key; or null of no such entry exists.
int	getMaxSize() Returns the maximum size of the cache.
T	remove(java.lang.String key)
int	size() Returns the current size of the cache.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

LRUCache

public LRUCache(int maxSize)

Parameters:

maxSize - the maximum number of entries of the cache

Method Detail

add

public T add(java.lang.String key,
             T value)

Adds an entry to the cache, evicting the earliest entry if necessary.

get

public T get(java.lang.String key)

Returns the value of the given key; or null of no such entry exists.

size

public int size()

Returns the current size of the cache.

getMaxSize

public int getMaxSize()

Returns the maximum size of the cache.

clear

public void clear()

remove

public T remove(java.lang.String key)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object