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Java Source Code / Java Documentation » EJB Server JBoss 4.2.1 » server » org.jboss.ejb.plugins 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy

All known Subclasses:   org.jboss.ejb.plugins.LRUStatefulContextCachePolicy,
LRUEnterpriseContextCachePolicy
public class LRUEnterpriseContextCachePolicy extends LRUCachePolicy implements XmlLoadable,Monitorable(Code)
Least Recently Used cache policy for EnterpriseContexts.
See Also:   AbstractInstanceCache
author:
   Simone Bordet
author:
   Bill Burke
version:
   $Revision: 57209 $

Inner Class :protected class ResizerTask extends TimerTask
Inner Class :protected class OveragerTask extends TimerTask
Inner Class :protected class ContextLRUList extends LRUList

Field Summary
protected static  Loggerlog
    
protected static  TimertasksTimer
    

Constructor Summary
public  LRUEnterpriseContextCachePolicy(AbstractInstanceCache eic)
     Creates a LRU cache policy object given the instance cache that use this policy object.

Method Summary
protected  voidageOut(LRUCacheEntry entry)
    
protected  voidcacheMiss()
    
protected  LRUListcreateList()
    
public  voiddestroy()
    
public  voidflush()
     Flush is overriden here because in this policy impl flush might not actually remove all the instances from the cache. Those instances that are in use (associated with a transaction) should not be removed from the cache.
public  voidimportXml(Element element)
     Reads from the configuration the parameters for this cache policy, that are all optionals.
public  voidsample(Object s)
    
public  voidstart()
    
public  voidstop()
    

Field Detail
log
protected static Logger log(Code)



tasksTimer
protected static Timer tasksTimer(Code)




Constructor Detail
LRUEnterpriseContextCachePolicy
public LRUEnterpriseContextCachePolicy(AbstractInstanceCache eic)(Code)
Creates a LRU cache policy object given the instance cache that use this policy object.




Method Detail
ageOut
protected void ageOut(LRUCacheEntry entry)(Code)



cacheMiss
protected void cacheMiss()(Code)



createList
protected LRUList createList()(Code)



destroy
public void destroy()(Code)



flush
public void flush()(Code)
Flush is overriden here because in this policy impl flush might not actually remove all the instances from the cache. Those instances that are in use (associated with a transaction) should not be removed from the cache. So, the iteration is done not until the cache is empty but until we tried to age-out every instance in the cache.



importXml
public void importXml(Element element) throws DeploymentException(Code)
Reads from the configuration the parameters for this cache policy, that are all optionals. FIXME 20010626 marcf: Simone seriously arent' all the options overkill? give it another 6 month . Remember you are exposing the guts of this to the end user, also provide defaults so that if an entry is not specified you can still work and it looks _much_ better in the configuration files.



sample
public void sample(Object s)(Code)



start
public void start()(Code)



stop
public void stop()(Code)



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