Java Doc for CacheManager.java in  » Blogger-System » apache-roller-3.1 » org » apache » roller » util » cache » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Blogger System » apache roller 3.1 » org.apache.roller.util.cache   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.roller.util.cache.CacheManager CacheManager public class CacheManager (Code) A governing class for Roller cache objects. The purpose of the CacheManager is to provide a level of abstraction between classes that use a cache and the implementations of a cache. This allows us to create easily pluggable cache implementations. The other purpose is to provide a single interface for interacting with all Roller caches at the same time. This is beneficial because as data changes in the system we often need to notify all caches that some part of their cached data needs to be invalidated, and the CacheManager makes that process easier. Method Summary public static  void clear()      Flush the entire cache system. public static  void clear(String cacheId)      Flush a single cache. public static  Cache constructCache(CacheHandler handler, Map properties)      Ask the CacheManager to construct a cache. Normally the CacheManager will use whatever CacheFactory has been chosen for the system via the cache.defaultFactory property. However, it is possible to override the use of the default factory by supplying a "factory" property to this method. public static  Map getStats()      Compile stats from all registered caches. public static  void invalidate(WeblogEntryData entry)      public static  void invalidate(WebsiteData website)      public static  void invalidate(BookmarkData bookmark)      public static  void invalidate(FolderData folder)      public static  void invalidate(CommentData comment)      public static  void invalidate(RefererData referer)      public static  void invalidate(UserData user)      public static  void invalidate(WeblogCategoryData category)      public static  void invalidate(WeblogTemplate template)      public static  void registerHandler(CacheHandler handler)      Register a CacheHandler to listen for object invalidations. public static  void shutdown()      Place to do any cleanup tasks for cache system. Method Detail clear public static void clear()(Code) Flush the entire cache system. clear public static void clear(String cacheId)(Code) Flush a single cache. constructCache public static Cache constructCache(CacheHandler handler, Map properties)(Code) Ask the CacheManager to construct a cache. Normally the CacheManager will use whatever CacheFactory has been chosen for the system via the cache.defaultFactory property. However, it is possible to override the use of the default factory by supplying a "factory" property to this method. The value should be the full classname for the factory you want to use for constructing the cache. example: factory -> org.apache.roller.util.cache.LRUCacheFactoryImpl This allows Roller admins the ability to choose a caching strategy to use for the whole system, but override it in certain places where they see fit. It also allows users to write their own caching modifications and have them used only by specific caches. getStats public static Map getStats()(Code) Compile stats from all registered caches. This is basically a hacky version of instrumentation which is being thrown in because we don't have a full instrumentation strategy yet. This is here with the full expectation that it will be replaced by something a bit more elaborate, like JMX. invalidate public static void invalidate(WeblogEntryData entry)(Code) invalidate public static void invalidate(WebsiteData website)(Code) invalidate public static void invalidate(BookmarkData bookmark)(Code) invalidate public static void invalidate(FolderData folder)(Code) invalidate public static void invalidate(CommentData comment)(Code) invalidate public static void invalidate(RefererData referer)(Code) invalidate public static void invalidate(UserData user)(Code) invalidate public static void invalidate(WeblogCategoryData category)(Code) invalidate public static void invalidate(WeblogTemplate template)(Code) registerHandler public static void registerHandler(CacheHandler handler)(Code) Register a CacheHandler to listen for object invalidations. This is here so that it's possible to to add classes which would respond to object invalidations without necessarily having to create a cache. An example would be a handler designed to notify other machines in a cluster when an object has been invalidated, or possibly the search index management classes are interested in knowing when objects are invalidated. shutdown public static void shutdown()(Code) Place to do any cleanup tasks for cache system. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)