Package com.aspectran.core.component.session

Class Session

java.lang.Object

com.aspectran.core.component.session.Session

Direct Known Subclasses:

AbstractSessionCache.PlaceHolderSession

public class Session
extends java.lang.Object

The basic Session object.

Created: 2017. 6. 13.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Session.State	state of the session: valid, invalid or being invalidated

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Session(SessionHandler sessionHandler, SessionData sessionData)
protected	Session(SessionHandler sessionHandler, SessionData sessionData, boolean newSession)

Method Summary

Modifier and Type	Method	Description
protected boolean	access(long time)
protected boolean	beginInvalidate()
protected void	checkLocked()
protected void	checkValidForRead()	Check that the session data can be read.
protected void	checkValidForWrite()	Check that the session can be modified.
protected void	complete()
protected void	finishInvalidate()
<T> T	getAttribute(java.lang.String name)
java.util.Enumeration<java.lang.String>	getAttributeNames()
long	getCreationTime()
java.lang.String	getId()
long	getLastAccessedTime()
int	getMaxInactiveInterval()
long	getRequests()	Returns the current number of requests that are active in the Session.
SessionData	getSessionData()
protected SessionScope	getSessionScope()
void	invalidate()	Called by users to invalidate a session, or called by the access method as a request enters the session if the session has expired, or called by manager as a result of scavenger expiring session.
protected boolean	isExpiredAt(long time)	Check to see if session has expired as at the time given.
protected boolean	isIdleLongerThan(int sec)	Check if the Session has been idle longer than a number of seconds.
boolean	isNew()
protected boolean	isResident()
boolean	isValid()
Locker.Lock	lock()	Grab the lock on the session.
Locker.Lock	lockIfNotHeld()	Grab the lock on the session if it isn't locked already.
void	removeAttribute(java.lang.String name)
void	setAttribute(java.lang.String name, java.lang.Object value)
void	setMaxInactiveInterval(int secs)
protected void	setResident(boolean resident)
protected void	stopInactivityTimer()	Stop the session inactivity timer.
java.lang.String	toString()
void	updateInactivityTimer()	Set the inactivity timer to the smaller of the session maxInactivity (ie session-timeout from web.xml), or the inactive eviction time.

Methods inherited from class java.lang.Object

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

Constructor Detail

Session

protected Session(SessionHandler sessionHandler,
                  SessionData sessionData)

Session

protected Session(SessionHandler sessionHandler,
                  SessionData sessionData,
                  boolean newSession)

Method Detail

getId

public java.lang.String getId()

getSessionData

public SessionData getSessionData()

getSessionScope

protected SessionScope getSessionScope()

getAttribute

public <T> T getAttribute(java.lang.String name)

setAttribute

public void setAttribute(java.lang.String name,
                         java.lang.Object value)

getAttributeNames

public java.util.Enumeration<java.lang.String> getAttributeNames()

removeAttribute

public void removeAttribute(java.lang.String name)

getCreationTime

public long getCreationTime()

getLastAccessedTime

public long getLastAccessedTime()

getMaxInactiveInterval

public int getMaxInactiveInterval()

setMaxInactiveInterval

public void setMaxInactiveInterval(int secs)

updateInactivityTimer

public void updateInactivityTimer()

Set the inactivity timer to the smaller of the session maxInactivity (ie session-timeout from web.xml), or the inactive eviction time.

stopInactivityTimer

protected void stopInactivityTimer()

Stop the session inactivity timer.

invalidate

public void invalidate()

Called by users to invalidate a session, or called by the access method as a request enters the session if the session has expired, or called by manager as a result of scavenger expiring session.

beginInvalidate

protected boolean beginInvalidate()

finishInvalidate

protected void finishInvalidate()

isNew

public boolean isNew()
              throws java.lang.IllegalStateException

Throws:

java.lang.IllegalStateException

isValid

public boolean isValid()

isResident

protected boolean isResident()

setResident

protected void setResident(boolean resident)

isExpiredAt

protected boolean isExpiredAt(long time)

Check to see if session has expired as at the time given.

Parameters:

time - the time since the epoch in ms

Returns:

true if expired

isIdleLongerThan

protected boolean isIdleLongerThan(int sec)

Check if the Session has been idle longer than a number of seconds.

Parameters:

sec - the number of seconds

Returns:

true if the session has been idle longer than the interval

checkValidForWrite

protected void checkValidForWrite()
                           throws java.lang.IllegalStateException

Check that the session can be modified.

Throws:

java.lang.IllegalStateException - if the session is invalid

checkValidForRead

protected void checkValidForRead()
                          throws java.lang.IllegalStateException

Check that the session data can be read.

Throws:

java.lang.IllegalStateException - if the session is invalid

checkLocked

protected void checkLocked()
                    throws java.lang.IllegalStateException

Throws:

java.lang.IllegalStateException

lock

public Locker.Lock lock()

Grab the lock on the session.

Returns:

the lock

lockIfNotHeld

public Locker.Lock lockIfNotHeld()

Grab the lock on the session if it isn't locked already.

Returns:

the lock

access

protected boolean access(long time)

complete

protected void complete()

getRequests

public long getRequests()

Returns the current number of requests that are active in the Session.

Returns:

the number of active requests for this session

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object