org.ow2.jonas.lib.ejb21
Class JStatelessFactory

java.lang.Object
  org.ow2.jonas.lib.ejb21.JFactory
      org.ow2.jonas.lib.ejb21.JSessionFactory
          org.ow2.jonas.lib.ejb21.JStatelessFactory

All Implemented Interfaces:

BeanFactory, org.ow2.util.event.api.IEventListener

public class JStatelessFactory
extends JSessionFactory

This class is a factory for a Session Stateless Bean.

Author:

Philippe Durieux

Field Summary

protected List	bctxlist instance pool management (list of available JSessionContext objects) Contexts are pooled only for Stateless Session beans because for Stateful sessions a newInstance() is required by the spec.
protected int	instanceCount
protected int	maxCacheSize
protected int	minPoolSize
protected JServiceEndpointHome	sehome

Fields inherited from class org.ow2.jonas.lib.ejb21.JSessionFactory

home, isStateful, isSynchro, localhome, monitoringEnabled, numberOfCalls, sessionList, singleswitch, totalBusinessProcessingTime, totalProcessingTime, uniqueSession, warningThreshold

Fields inherited from class org.ow2.jonas.lib.ejb21.JFactory

beanclass, cont, dd, dispatcher, ejb10Env, ejbname, ejbTimeoutSignature, isClusterReplicated, JNDICtx, myTimerService, naming, passivationDir, stopped, timerTxAttr, tm, txbeanmanaged, wm

Constructor Summary

JStatelessFactory(SessionStatelessDesc dd, JContainer cont)
constructor

Method Summary

JSessionSwitch	createNewSession() Creates a new Session Stateless
int	getCacheSize()
JSessionContext	getJContext(JSessionSwitch ss)
int	getMaxCacheSize()
int	getMinPoolSize()
int	getPoolSize() Get the size of the instance pool for this bean
JServiceEndpointHome	getSEHome()
TimerService	getTimerService() Obtains the TimerService associated for this Bean
void	initInstancePool() Init pool of instances.
void	notifyTimeout(Timer timer) Notify a timeout for this bean
void	reduceCache() Reduce number of instances in memory in the free list we reduce to the minPoolSize
void	releaseJContext(JContext ctx) Called after each method call
void	storeInstances(Transaction tx) Store intances modified (used before finder ou select methods)

Methods inherited from class org.ow2.jonas.lib.ejb21.JSessionFactory

accept, checkTransaction, createEJB, getHome, getLocalHome, getMonitoringEnabled, getMonitoringSettingsDefinedInDD, getNumberOfCalls, getPriority, getTimeout, getTotalBusinessProcessingTime, getTotalProcessingTime, getWarningThreshold, handle, isSessionSynchro, isStateful, removeEJB, setMonitoringEnabled, setMonitoringSettingsDefinedInDD, setNumberOfCalls, setTimeout, setTotalBusinessProcessingTime, setTotalProcessingTime, setWarningThreshold, singleSwitchOn, stop, syncDirty

Methods inherited from class org.ow2.jonas.lib.ejb21.JFactory

checkJonasVersion, checkSecurity, checkTransactionContainer, getContainer, getDeploymentDescriptor, getDispatcher, getEjb10Environment, getEJBName, getEjbTimeoutSignature, getEnv, getFileList, getInitialContext, getPassivationDir, getTimerTxAttribute, getTransactionManager, getWorkManager, init, isClassAvailable, isStopped, isTxBeanManaged, myClassLoader, postInvoke, postInvokeRemote, preInvoke, preInvokeRemote, resetComponentContext, restartTimers, setComponentContext, setDispatcher, stopContainer

Methods inherited from class java.lang.Object

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

Field Detail

bctxlist

protected List bctxlist

instance pool management (list of available JSessionContext objects) Contexts are pooled only for Stateless Session beans because for Stateful sessions a newInstance() is required by the spec. We don't need synchronizedList here, because anyway, we synchronize already everywhere.

sehome

protected JServiceEndpointHome sehome

instanceCount

protected int instanceCount

minPoolSize

protected int minPoolSize

maxCacheSize

protected int maxCacheSize

Constructor Detail

JStatelessFactory

public JStatelessFactory(SessionStatelessDesc dd,
                         JContainer cont)

constructor

Parameters:

dd - Session Stateless Deployment Descriptor

cnt - Container where the bean is defined

Method Detail

initInstancePool

public void initInstancePool()

Init pool of instances.

Specified by:

initInstancePool in interface BeanFactory

Specified by:

initInstancePool in class JFactory

getSEHome

public JServiceEndpointHome getSEHome()

getPoolSize

public int getPoolSize()

Description copied from interface: BeanFactory

Get the size of the instance pool for this bean

Specified by:

getPoolSize in interface BeanFactory

Specified by:

getPoolSize in class JFactory

Returns:

the Instance pool size for this Ejb

reduceCache

public void reduceCache()

Reduce number of instances in memory in the free list we reduce to the minPoolSize

getTimerService

public TimerService getTimerService()

Obtains the TimerService associated for this Bean

Specified by:

getTimerService in class JFactory

Returns:

a JTimerService instance.

createNewSession

public JSessionSwitch createNewSession()
                                throws RemoteException

Creates a new Session Stateless

Specified by:

createNewSession in class JSessionFactory

Returns:

the new JSessionSwitch

Throws:

RemoteException

getJContext

public JSessionContext getJContext(JSessionSwitch ss)

Specified by:

getJContext in class JSessionFactory

Returns:

a SessionContext for Stateless Session Bean

releaseJContext

public void releaseJContext(JContext ctx)

Called after each method call

Parameters:

ctx - the Session Context

notifyTimeout

public void notifyTimeout(Timer timer)

Notify a timeout for this bean

Parameters:

timer - timer whose expiration caused this notification.

getMinPoolSize

public int getMinPoolSize()

Overrides:

getMinPoolSize in class JFactory

Returns:

min pool size for Jmx

getMaxCacheSize

public int getMaxCacheSize()

Overrides:

getMaxCacheSize in class JFactory

Returns:

max cache size for Jmx

getCacheSize

public int getCacheSize()

Overrides:

getCacheSize in class JFactory

Returns:

current cache size ( = nb of instance created) for Jmx

storeInstances

public void storeInstances(Transaction tx)

Description copied from interface: BeanFactory

Store intances modified (used before finder ou select methods)