org.jboss.cache.eviction
Class LRUPolicy

java.lang.Object
  org.jboss.cache.eviction.BaseEvictionPolicy (src) 
      org.jboss.cache.eviction.LRUPolicy

All Implemented Interfaces:

EvictionPolicy (src) , TreeCacheListener (src)

Direct Known Subclasses:

AopLRUPolicy (src) , FIFOPolicy (src)

public class LRUPolicy

extends BaseEvictionPolicy (src)

implements TreeCacheListener (src)

Provider to provide eviction policy. This one is based on LRU algorithm that a user can specify either maximum number of nodes or the idle time of a node to be evicted.

log_

protected Logger (src)  log_

LRUPolicy

public LRUPolicy()

nodeAdded

public void nodeAdded(Fqn (src)  fqn)

--- Implementation of TreeCacheListener interface ---

nodeRemoved

public void nodeRemoved(Fqn (src)  fqn)

Note that this removes all children nodes as well. So we will need to put the children nodes into removed queue.

Specified by:

nodeRemoved in interface TreeCacheListener (src)

Parameters:

fqn -

nodeEvicted

public void nodeEvicted(Fqn (src)  fqn)

Description copied from interface: TreeCacheListener (src)

Called when a node is evicted (not the same as remove()).

Specified by:

nodeEvicted in interface TreeCacheListener (src)

Parameters:

fqn -

nodeModified

public void nodeModified(Fqn (src)  fqn)

Description copied from interface: TreeCacheListener (src)

Called when a node is modified, e.g., one (key, value) pair in the internal map storage has been modified.

Specified by:

nodeModified in interface TreeCacheListener (src)

Parameters:

fqn -

nodeLoaded

public void nodeLoaded(Fqn (src)  fqn)

Description copied from interface: TreeCacheListener (src)

Called when a node is loaded into memory via the CacheLoader. This is not the same as TreeCacheListener.nodeCreated(Fqn).

Specified by:

nodeLoaded in interface TreeCacheListener (src)

nodeCreated

public void nodeCreated(Fqn (src)  fqn)

Description copied from interface: TreeCacheListener (src)

Called when a node is created

Specified by:

nodeCreated in interface TreeCacheListener (src)

Parameters:

fqn -

nodeVisited

public void nodeVisited(Fqn (src)  fqn)

Description copied from interface: TreeCacheListener (src)

Called when a node is visisted, i.e., get().

Specified by:

nodeVisited in interface TreeCacheListener (src)

Parameters:

fqn -

cacheStarted

public void cacheStarted(TreeCache (src)  cache)

Description copied from interface: TreeCacheListener (src)

Called when the cache is started.

Specified by:

cacheStarted in interface TreeCacheListener (src)

Parameters:

cache -

getEvictionAlgorithm

protected EvictionAlgorithm (src)  getEvictionAlgorithm()

cacheStopped

public void cacheStopped(TreeCache (src)  cache)

Description copied from interface: TreeCacheListener (src)

Called when the cache is stopped.

Specified by:

cacheStopped in interface TreeCacheListener (src)

Parameters:

cache -

viewChange

public void viewChange(View new_view)

Specified by:

viewChange in interface TreeCacheListener (src)

getWakeupIntervalSeconds

public int getWakeupIntervalSeconds()

Description copied from interface: EvictionPolicy (src)

return eviction thread (if any) wake up interval in seconds.

Specified by:

getWakeupIntervalSeconds in interface EvictionPolicy (src)

Overrides:

getWakeupIntervalSeconds in class BaseEvictionPolicy (src)

configure

public void configure(TreeCache (src)  cache)

Description copied from interface: EvictionPolicy (src)

Method called to configure this implementation.

Specified by:

configure in interface EvictionPolicy (src)

Overrides:

configure in class BaseEvictionPolicy (src)