jrun.servlet.session
Class SessionHolder

java.lang.Object
  |
  +--jrun.servlet.session.SessionHolder

All Implemented Interfaces:

java.lang.Runnable

public final class SessionHolder

extends java.lang.Object

implements java.lang.Runnable

Represents a single session object. The session object may be resident in memory, or it may have been swapped to disk.

Field Summary

protected long	expireTime
protected long	inactiveMS
protected JRunSession	inMemorySession
protected long	lastAccessMS
protected int	lruID
protected Session	service
protected java.lang.String	sessionID
protected int	state
static int	STATE_INMEMORY
static int	STATE_INVALID
static int	STATE_LOST
static int	STATE_SWAPPED

Constructor Summary

SessionHolder(Session service, JRunSession session)
Construct a new SessionHolder

SessionHolder(Session service, java.lang.String sessionID)
Construct a new SessionHolder

Method Summary

protected int	getLRUID()
JRunSession	getSession() Gets the session object.
java.lang.String	getSessionID()
protected boolean	isInMemory()
protected boolean	isSwapped()
protected void	reschedule(long inactiveMS) Reschedule the timer for the session invalidation
void	run() Called by the Scheduler to perform session invalidation
protected void	setLastAccessTime(long ms) Sets the last accessed time
protected void	setLRUID(int id)
void	setSession(JRunSession session)
protected void	setState(int state)

Methods inherited from class java.lang.Object

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

Field Detail

STATE_INMEMORY

public static final int STATE_INMEMORY

STATE_SWAPPED

public static final int STATE_SWAPPED

STATE_LOST

public static final int STATE_LOST

STATE_INVALID

public static final int STATE_INVALID

service

protected Session service

state

protected int state

lastAccessMS

protected long lastAccessMS

inactiveMS

protected long inactiveMS

expireTime

protected long expireTime

lruID

protected int lruID

inMemorySession

protected JRunSession inMemorySession

sessionID

protected java.lang.String sessionID

Constructor Detail

SessionHolder

public SessionHolder(Session service,
                     java.lang.String sessionID)

Construct a new SessionHolder

Parameters:

service - The JRunSessionService

sessionID - The session ID

SessionHolder

public SessionHolder(Session service,
                     JRunSession session)

Construct a new SessionHolder

Parameters:

service - The JRunSessionService

session - The session object

Method Detail

getSession

public JRunSession getSession()

Gets the session object. If the session has been swapped to disk, request the object from the storage provider.

Returns:

null if the session could not be loaded

setSession

public void setSession(JRunSession session)

getSessionID

public java.lang.String getSessionID()

reschedule

protected void reschedule(long inactiveMS)

Reschedule the timer for the session invalidation

Parameters:

inactiveMS - The milliseconds of inactivity before invalidating

setLastAccessTime

protected void setLastAccessTime(long ms)

Sets the last accessed time

setLRUID

protected void setLRUID(int id)

getLRUID

protected int getLRUID()

setState

protected void setState(int state)

isInMemory

protected boolean isInMemory()

isSwapped

protected boolean isSwapped()

run

public void run()

Called by the Scheduler to perform session invalidation

Specified by:

run in interface java.lang.Runnable