net.sf.mmm.util.bean.impl

Class MemoryCache<K,V>

java.lang.Object

net.sf.mmm.util.bean.impl.MemoryCache<K,V>

class MemoryCache<K,V>
extends Object

A simple cache implementation that is thread-safe and uses WeakReferences to avoid memory leaks.

Since:

8.0.0

Author:

hohwille

Field Summary

Fields

Modifier and Type	Field and Description
private Map<K,WeakReference<V>>	cache
private ReentrantLock	lock

Constructor Summary

Constructors

Constructor and Description
MemoryCache() The constructor.

Method Summary

Modifier and Type	Method and Description
V	get(K key, Supplier<V> factory)

Methods inherited from class java.lang.Object

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

Field Detail

lock

private final ReentrantLock lock

cache

private final Map<K,WeakReference<V>> cache

Constructor Detail

MemoryCache

public MemoryCache()

The constructor.

Method Detail

get

public V get(K key,
             Supplier<V> factory)