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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)

java.lang .Object

org.jboss.ejb.plugins .AbstractInstanceCache

All known Subclasses:   org.jboss.ejb.plugins .EntityInstanceCache,  org.jboss.ejb.plugins .StatefulSessionInstanceCache,
AbstractInstanceCache
abstract public class AbstractInstanceCache implements InstanceCache,XmlLoadable,Monitorable,MetricsConstants,AbstractInstanceCacheMBean(Code)
Base class for caches of entity and stateful beans.
It manages the cache entries through a CachePolicy object; the implementation of the cache policy object must respect the following requirements:

Have a public constructor that takes a single argument of type AbstractInstanceCache.class or a subclass

author:
   Simone Bordet
author:
   Bill Burke
author:
   Marc Fleury
author:
   Scott.Stark@jboss.org
version:
   $Revision: 57209 $

Field Summary
protected static Logger log


Method Summary
abstract protected EnterpriseContext acquireContext()

abstract protected void activate(EnterpriseContext ctx)

abstract protected boolean canPassivate(EnterpriseContext ctx)

public void create()

public void destroy()

protected boolean doActivate(EnterpriseContext ctx)

public void flush()
     Flush the cache.
abstract protected void freeContext(EnterpriseContext ctx)

public EnterpriseContext get(Object id)

protected CachePolicy getCache()
     Returns the cache policy used for this cache.
public Object getCacheLock()

public String getCachePolicyString()
     Display the cache policy.
public long getCacheSize()

abstract protected Container getContainer()
     Returns the container for this cache.
abstract protected Object getKey(EnterpriseContext ctx)

public long getPassivatedCount()
     Get the passivated count.
public void importXml(Element element)

public void insert(EnterpriseContext ctx)

public boolean isActive(Object id)

protected void logActivation(Object id)

protected void logPassivation(Object id)

abstract protected void passivate(EnterpriseContext ctx)

public void release(EnterpriseContext ctx)
     Passivates and removes the instance from the cache.
public void remove(Object id)

public void resetStatistic()

public Map retrieveStatistic()

public void sample(Object s)

abstract protected void setKey(Object id, EnterpriseContext ctx)

public void start()

public void stop()

protected void tryToPassivate(EnterpriseContext ctx)
     Tries to passivate the instance.
protected void tryToPassivate(EnterpriseContext ctx, boolean passivateAfterCommit)
     Tries to passivate the instance.
protected void unableToPassivateDueToCtxLock(EnterpriseContext ctx, boolean passivateAfterCommit)


Field Detail
log
protected static Logger log(Code)

Method Detail
acquireContext
abstract protected EnterpriseContext acquireContext() throws Exception(Code)
Acquires an EnterpriseContext from the pool

activate
abstract protected void activate(EnterpriseContext ctx) throws RemoteException(Code)
Activates the given EnterpriseContext

canPassivate
abstract protected boolean canPassivate(EnterpriseContext ctx)(Code)
Returns whether the given context can be passivated or not

create
public void create() throws Exception(Code)

destroy
public void destroy()(Code)

doActivate
protected boolean doActivate(EnterpriseContext ctx) throws RemoteException(Code)
Activate the given EnterpriseContext
Parameters:
  ctx - the context false if we recursively activating
throws:
  RemoteException - for any error

flush
public void flush()(Code)
Flush the cache.

freeContext
abstract protected void freeContext(EnterpriseContext ctx)(Code)
Frees the given EnterpriseContext to the pool

get
public EnterpriseContext get(Object id) throws RemoteException, NoSuchObjectException(Code)

getCache
protected CachePolicy getCache()(Code)
Returns the cache policy used for this cache.

getCacheLock
public Object getCacheLock()(Code)
Returns the mutex used to sync access to the cache policy object

getCachePolicyString
public String getCachePolicyString()(Code)
Display the cache policy. the cache policy as a string.

getCacheSize
public long getCacheSize()(Code)
Get the current cache size the size of the cache

getContainer
abstract protected Container getContainer()(Code)
Returns the container for this cache.

getKey
abstract protected Object getKey(EnterpriseContext ctx)(Code)
Returns the key used by the cache to map the given context

getPassivatedCount
public long getPassivatedCount()(Code)
Get the passivated count. the number of passivated instances.

importXml
public void importXml(Element element) throws DeploymentException(Code)

insert
public void insert(EnterpriseContext ctx)(Code)

isActive
public boolean isActive(Object id)(Code)

logActivation
protected void logActivation(Object id)(Code)

logPassivation
protected void logPassivation(Object id)(Code)

passivate
abstract protected void passivate(EnterpriseContext ctx) throws RemoteException(Code)
Passivates the given EnterpriseContext

release
public void release(EnterpriseContext ctx)(Code)
Passivates and removes the instance from the cache. If the instance is in use then removal and passivation will be scheduled until after transaction ends

remove
public void remove(Object id)(Code)
From InstanceCache interface

resetStatistic
public void resetStatistic()(Code)

retrieveStatistic
public Map retrieveStatistic()(Code)

sample
public void sample(Object s)(Code)

setKey
abstract protected void setKey(Object id, EnterpriseContext ctx)(Code)
Sets the given id as key for the given context

start
public void start() throws Exception(Code)

stop
public void stop()(Code)

tryToPassivate
protected void tryToPassivate(EnterpriseContext ctx)(Code)
Tries to passivate the instance. If the instance is in use then the instance will be passivated later according to the container's commit option and max age.

tryToPassivate
protected void tryToPassivate(EnterpriseContext ctx, boolean passivateAfterCommit)(Code)
Tries to passivate the instance. If the instance is in use and passivateAfterCommit parameter is true then the instance will passivated after the transaction commits. Otherwise, the instance will be passivated later according to the container's commit option and max age.

unableToPassivateDueToCtxLock
protected void unableToPassivateDueToCtxLock(EnterpriseContext ctx, boolean passivateAfterCommit)(Code)

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)

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