Package org.apache.shiro.cache

Class MemoryConstrainedCacheManager

java.lang.Object

org.apache.shiro.cache.AbstractCacheManager

org.apache.shiro.cache.MemoryConstrainedCacheManager

All Implemented Interfaces:

CacheManager, org.apache.shiro.util.Destroyable

public class MemoryConstrainedCacheManager
extends AbstractCacheManager

Simple memory-only based CacheManager implementation usable in production environments. It will not cause memory leaks as it produces Caches backed by SoftHashMaps which auto-size themselves based on the runtime environment's memory limitations and garbage collection behavior.

While the Cache instances created are thread-safe, they do not offer any enterprise-level features such as cache coherency, optimistic locking, failover or other similar features. For more enterprise features, consider using a different CacheManager implementation backed by an enterprise-grade caching product (Hazelcast, EhCache, TerraCotta, Coherence, GigaSpaces, etc, etc).

Since:

1.0

Constructor Summary

Constructors

Constructor	Description
MemoryConstrainedCacheManager()

Method Summary

Modifier and Type	Method	Description
protected Cache	createCache(String name)	Returns a new MapCache instance backed by a SoftHashMap.

Methods inherited from class org.apache.shiro.cache.AbstractCacheManager

destroy, getCache, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryConstrainedCacheManager

public MemoryConstrainedCacheManager()

Method Detail

createCache

protected Cache createCache(String name)

Returns a new MapCache instance backed by a SoftHashMap.

Specified by:

createCache in class AbstractCacheManager

Parameters:

name - the name of the cache

Returns:

a new MapCache instance backed by a SoftHashMap.