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StatefulSessionInstanceCache (JBoss Server API) - JBoss 4.0.1 sp1 server API Documentation 英文版文档

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org.jboss.ejb.plugins
Class StatefulSessionInstanceCache

java.lang.Object
  org.jboss.ejb.plugins.AbstractInstanceCache
      org.jboss.ejb.plugins.StatefulSessionInstanceCache

All Implemented Interfaces:

AbstractInstanceCacheMBean, AllowedOperationsFlags, ContainerPlugin, InstanceCache, MetricsConstants, Monitorable, org.jboss.system.Service, XmlLoadable

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public class StatefulSessionInstanceCache

extends AbstractInstanceCache

Cache for stateful session beans.

Version:

$Revision: 1.27 $

Author:

Simone Bordet, Sebastien Alborini

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Field Summary

 

Fields inherited from class org.jboss.ejb.plugins.AbstractInstanceCache

log

 

Fields inherited from interface org.jboss.ejb.AllowedOperationsFlags

IN_AFTER_BEGIN, IN_AFTER_COMPLETION, IN_BEFORE_COMPLETION, IN_BUSINESS_METHOD, IN_EJB_ACTIVATE, IN_EJB_CREATE, IN_EJB_FIND, IN_EJB_HOME, IN_EJB_LOAD, IN_EJB_PASSIVATE, IN_EJB_POST_CREATE, IN_EJB_REMOVE, IN_EJB_STORE, IN_EJB_TIMEOUT, IN_INTERCEPTOR_METHOD, IN_SERVICE_ENDPOINT_METHOD, IN_SET_ENTITY_CONTEXT, IN_SET_MESSAGE_DRIVEN_CONTEXT, IN_SET_SESSION_CONTEXT, IN_UNSET_ENTITY_CONTEXT, NOT_ALLOWED

 

Fields inherited from interface org.jboss.monitor.MetricsConstants

ACTIVITY, APPLICATION, BEAN, BEANCACHE_METRICS, CHECKPOINT, INVOCATION_METRICS, MEMORY_MONITOR, METHOD, PRIMARY_KEY, SYSTEM_METRICS, THREAD_MONITOR, TIME, TYPE

 

Constructor Summary

StatefulSessionInstanceCache()

 

Method Summary
protected  EnterpriseContext	acquireContext()           Acquires an EnterpriseContext from the pool
protected  void	activate(EnterpriseContext ctx)           Activates the given EnterpriseContext
protected  boolean	canPassivate(EnterpriseContext ctx)           Returns whether the given context can be passivated or not
void	destroy()
protected  boolean	doActivate(EnterpriseContext ctx)           Activate the given EnterpriseContext
protected  void	freeContext(EnterpriseContext ctx)           Frees the given EnterpriseContext to the pool
protected  Container	getContainer()           Returns the container for this cache.
protected  Object	getKey(EnterpriseContext ctx)           Returns the key used by the cache to map the given context
long	getPassivatedCount()           Get the passivated count.
protected  void	passivate(EnterpriseContext ctx)           Passivates the given EnterpriseContext
protected  void	postRemovalCleanup(Object key)
protected  void	preRemovalPreparation(Object key)
protected  void	removePassivated(long maxLifeAfterPassivation)           Remove all passivated instances that have been inactive too long.
void	setContainer(Container c)           This callback is set by the container so that the plugin may access it
protected  void	setKey(Object id, EnterpriseContext ctx)           Sets the given id as key for the given context

 

Methods inherited from class org.jboss.ejb.plugins.AbstractInstanceCache

create, flush, get, getCache, getCacheLock, getCachePolicyString, getCacheSize, importXml, insert, isActive, logActivation, logPassivation, release, remove, resetStatistic, retrieveStatistic, sample, start, stop, tryToPassivate

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

StatefulSessionInstanceCache

public StatefulSessionInstanceCache()

Method Detail

getPassivatedCount

public long getPassivatedCount()

Get the passivated count.

Specified by:

getPassivatedCount in interface AbstractInstanceCacheMBean

Overrides:

getPassivatedCount in class AbstractInstanceCache

Returns:

the number of passivated instances.

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setContainer

public void setContainer(Container c)

Description copied from interface: ContainerPlugin

This callback is set by the container so that the plugin may access it

Parameters:

c - The container using this plugin. This may be null if the plugin is being disassociated from a container.

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destroy

public void destroy()

Specified by:

destroy in interface org.jboss.system.Service

Overrides:

destroy in class AbstractInstanceCache

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getContainer

protected Container getContainer()

Description copied from class: AbstractInstanceCache

Returns the container for this cache.

Specified by:

getContainer in class AbstractInstanceCache

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passivate

protected void passivate(EnterpriseContext ctx)
                  throws RemoteException

Description copied from class: AbstractInstanceCache

Passivates the given EnterpriseContext

Specified by:

passivate in class AbstractInstanceCache

Throws:

RemoteException

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activate

protected void activate(EnterpriseContext ctx)
                 throws RemoteException

Description copied from class: AbstractInstanceCache

Activates the given EnterpriseContext

Specified by:

activate in class AbstractInstanceCache

Throws:

RemoteException

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doActivate

protected boolean doActivate(EnterpriseContext ctx)
                      throws RemoteException

Description copied from class: AbstractInstanceCache

Activate the given EnterpriseContext

Overrides:

doActivate in class AbstractInstanceCache

Parameters:

ctx - the context

Returns:

false if we recursively activating

Throws:

RemoteException - for any error

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acquireContext

protected EnterpriseContext acquireContext()
                                    throws Exception

Description copied from class: AbstractInstanceCache

Acquires an EnterpriseContext from the pool

Specified by:

acquireContext in class AbstractInstanceCache

Throws:

Exception

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freeContext

protected void freeContext(EnterpriseContext ctx)

Description copied from class: AbstractInstanceCache

Frees the given EnterpriseContext to the pool

Specified by:

freeContext in class AbstractInstanceCache

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getKey

protected Object getKey(EnterpriseContext ctx)

Description copied from class: AbstractInstanceCache

Returns the key used by the cache to map the given context

Specified by:

getKey in class AbstractInstanceCache

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setKey

protected void setKey(Object id,
                      EnterpriseContext ctx)

Description copied from class: AbstractInstanceCache

Sets the given id as key for the given context

Specified by:

setKey in class AbstractInstanceCache

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canPassivate

protected boolean canPassivate(EnterpriseContext ctx)

Description copied from class: AbstractInstanceCache

Returns whether the given context can be passivated or not

Specified by:

canPassivate in class AbstractInstanceCache

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removePassivated

protected void removePassivated(long maxLifeAfterPassivation)

Remove all passivated instances that have been inactive too long.

Parameters:

maxLifeAfterPassivation - the upper bound in milliseconds that an inactive session will be kept.

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preRemovalPreparation

protected void preRemovalPreparation(Object key)

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postRemovalCleanup

protected void postRemovalCleanup(Object key)

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