org.jboss.cache.loader
Class CacheLoaderManager

java.lang.Object
  org.jboss.cache.loader.CacheLoaderManager

public class CacheLoaderManager
extends java.lang.Object

Manages all cache loader funxtionality. This class is typically initialised with an XML DOM Element, represeting a cache loader configuration, or a CacheLoaderConfig object. Usage: CacheLoaderManager manager = new CacheLoaderManager(); manager.setConfig(myXmlSnippet, myTreeCache); CacheLoader loader = manager.getCacheLoader(); The XML configuration passed in would typically look like: false / org.jboss.cache.loader.FileCacheLoader true false false location=/tmp/file ]]>

Author:

Manik Surtani (manik@jboss.org)

Constructor Summary

CacheLoaderManager()

Method Summary

CacheLoader	getCacheLoader() Returns the cache loader
CacheLoaderConfig	getCacheLoaderConfig() Returns the configuration element of the cache loaders
boolean	isFetchPersistentState() Returns true if at least one of the configured cache loaders has set fetchPersistentState to true.
boolean	isPassivation() Tests if we're using passivation
void	preload(Fqn fqn, boolean preloadParents, boolean preloadChildren) Preloads a specific Fqn into the cache from the configured cacheloader
void	preloadCache() Performs a preload on the cache based on the cache loader preload configs used when configuring the cache.
void	setCacheLoader(CacheLoader loader) Overrides generated cache loader with the one provided,for backward compat.
void	setConfig(CacheLoaderConfig config, TreeCache cache) Sets a configuration object and creates a cacheloader accordingly.
void	setConfig(org.w3c.dom.Element cacheLoaderConfig, TreeCache cache) Creates a cache loader based on an XML element passed in.
void	startCacheLoader()
void	stopCacheLoader()

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheLoaderManager

public CacheLoaderManager()

Method Detail

setConfig

public void setConfig(org.w3c.dom.Element cacheLoaderConfig,
                      TreeCache cache)
               throws java.lang.Exception

Creates a cache loader based on an XML element passed in.

Parameters:

cacheLoaderConfig -

Throws:

java.lang.Exception

setConfig

public void setConfig(CacheLoaderConfig config,
                      TreeCache cache)
               throws java.lang.Exception

Sets a configuration object and creates a cacheloader accordingly.

Parameters:

config -

cache -

Throws:

java.lang.Exception

preloadCache

public void preloadCache()
                  throws java.lang.Exception

Performs a preload on the cache based on the cache loader preload configs used when configuring the cache.

Throws:

java.lang.Exception

preload

public void preload(Fqn fqn,
                    boolean preloadParents,
                    boolean preloadChildren)
             throws java.lang.Exception

Preloads a specific Fqn into the cache from the configured cacheloader

Parameters:

fqn - fqn to preload

preloadParents - whether we preload parents

preloadChildren - whether we preload children

Throws:

java.lang.Exception

getCacheLoaderConfig

public CacheLoaderConfig getCacheLoaderConfig()

Returns the configuration element of the cache loaders

getCacheLoader

public CacheLoader getCacheLoader()

Returns the cache loader

setCacheLoader

public void setCacheLoader(CacheLoader loader)

Overrides generated cache loader with the one provided,for backward compat.

Parameters:

loader -

isPassivation

public boolean isPassivation()

Tests if we're using passivation

isFetchPersistentState

public boolean isFetchPersistentState()

Returns true if at least one of the configured cache loaders has set fetchPersistentState to true.

stopCacheLoader

public void stopCacheLoader()

startCacheLoader

public void startCacheLoader()
                      throws java.lang.Exception

Throws:

java.lang.Exception