org.springframework.extensions.surf.cache
Class ModelObjectCache

java.lang.Object
  org.springframework.extensions.surf.cache.BasicCache<ModelObject>
      org.springframework.extensions.surf.cache.ModelObjectCache

All Implemented Interfaces:

ContentCache<ModelObject>

public class ModelObjectCache
extends BasicCache<ModelObject>

An enhancement to the in-memory basic cache that considers the in-memory cache to be secondary to the status of content within a persisted store. The persisted store is a Store implementation that is checked in order to verify that the content is still valid in the cache. The delay between checks against the persistent store can be configured.

Author:

muzquiano, kevinr

Nested Class Summary

static class

ModelObjectCache.ModelObjectSentinel Singleton sentinel class used to represent a 'null' value in the cache

Field Summary

protected Store

store

Fields inherited from class org.springframework.extensions.surf.cache.BasicCache

cache

Constructor Summary

ModelObjectCache(Store store, long delay)
Instantiates a new model object cache.

ModelObjectCache(Store store, long timeout, long delay)
Instantiates a new model object cache.

Method Summary

ModelObject

get(String key) Gets content stored in the cache

Methods inherited from class org.springframework.extensions.surf.cache.BasicCache

invalidate, keys, put, put, remove, values

Methods inherited from class java.lang.Object

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

Field Detail

store

protected final Store store

Constructor Detail

ModelObjectCache

public ModelObjectCache(Store store,
                        long delay)

Instantiates a new model object cache.

Parameters:

store - the store

delay - the delay to check modified dates for items in the cache

ModelObjectCache

public ModelObjectCache(Store store,
                        long timeout,
                        long delay)

Instantiates a new model object cache.

Parameters:

store - the store

timeout - the timeout

delay - the delay to check modified dates for items in the cache

Method Detail

get

public ModelObject get(String key)

Description copied from interface: ContentCache

Gets content stored in the cache

Specified by:

get in interface ContentCache<ModelObject>

Overrides:

get in class BasicCache<ModelObject>

Parameters:

key - the key

Returns:

the object