Package org.eclipse.jetty.server.session

Class JDBCSessionDataStore

java.lang.Object

org.eclipse.jetty.util.component.AbstractLifeCycle

org.eclipse.jetty.util.component.ContainerLifeCycle

org.eclipse.jetty.server.session.AbstractSessionDataStore

org.eclipse.jetty.server.session.JDBCSessionDataStore

All Implemented Interfaces:

SessionDataMap, SessionDataStore, Container, Destroyable, Dumpable, Dumpable.DumpableContainer, LifeCycle

@ManagedObject
public class JDBCSessionDataStore
extends AbstractSessionDataStore

JDBCSessionDataStore Session data stored in database

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	JDBCSessionDataStore.SessionTableSchema	SessionTableSchema

Nested classes/interfaces inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

AbstractLifeCycle.AbstractLifeCycleListener, AbstractLifeCycle.StopException

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.component.Container

Container.InheritedListener, Container.Listener

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.component.Dumpable

Dumpable.DumpableContainer

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.component.LifeCycle

LifeCycle.Listener

Field Summary

Fields

Modifier and Type	Field	Description
protected DatabaseAdaptor	_dbAdaptor
protected boolean	_initialized
protected boolean	_schemaProvided
protected JDBCSessionDataStore.SessionTableSchema	_sessionTableSchema
static final String	NULL_CONTEXT_PATH	Used for Oracle and other databases where "" is treated as NULL

Fields inherited from class org.eclipse.jetty.server.session.AbstractSessionDataStore

_context, _gracePeriodSec, _lastExpiryCheckTime, _lastOrphanSweepTime, _savePeriodSec, DEFAULT_GRACE_PERIOD_SEC, DEFAULT_SAVE_PERIOD_SEC

Fields inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

FAILED, STARTED, STARTING, STOPPED, STOPPING

Fields inherited from interface org.eclipse.jetty.util.component.Dumpable

KEY

Constructor Summary

Constructors

Constructor	Description
JDBCSessionDataStore()

Method Summary

Modifier and Type	Method	Description
boolean	delete(String id)	Delete session data
Set<String>	doCheckExpired(Set<String> candidates, long time)	Implemented by subclasses to resolve which sessions in this context that are being managed by this node that should be expired.
void	doCleanOrphans(long time)	Implemented by subclasses to delete sessions for other contexts that expired at or before the timeLimit.
boolean	doExists(String id)	Check if a session for the given id exists.
Set<String>	doGetExpired(long timeLimit)	Implemented by subclasses to find sessions for this context in the store that expired at or before the time limit and thus not being actively managed by any node.
protected void	doInsert(String id, SessionData data)
SessionData	doLoad(String id)	Load the session from persistent store.
protected void	doStart()	Starts the managed lifecycle beans in the order they were added.
protected void	doStop()	Stops the managed lifecycle beans in the reverse order they were added.
void	doStore(String id, SessionData data, long lastSaveTime)	Store the session data persistently.
protected void	doUpdate(String id, SessionData data)
void	initialize()
boolean	isPassivating()	True if this type of datastore will passivate session objects
void	setDatabaseAdaptor(DatabaseAdaptor dbAdaptor)
void	setSessionTableSchema(JDBCSessionDataStore.SessionTableSchema schema)

Methods inherited from class org.eclipse.jetty.server.session.AbstractSessionDataStore

checkStarted, cleanOrphans, exists, getExpired, getGracePeriodSec, getSavePeriodSec, initialize, load, newSessionData, setGracePeriodSec, setSavePeriodSec, store, toString

Methods inherited from class org.eclipse.jetty.util.component.ContainerLifeCycle

addBean, addBean, addEventListener, addManaged, contains, destroy, dump, dump, dump, dumpObjects, dumpStdErr, getBean, getBeans, getBeans, getContainedBeans, getContainedBeans, isAuto, isManaged, isUnmanaged, manage, removeBean, removeBeans, removeEventListener, setBeans, start, stop, unmanage, updateBean, updateBean, updateBeans, updateBeans

Methods inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

getEventListeners, getState, getState, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, setEventListeners, start, stop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.jetty.util.component.Container

getCachedBeans, getEventListeners

Methods inherited from interface org.eclipse.jetty.util.component.Dumpable

dumpSelf

Methods inherited from interface org.eclipse.jetty.util.component.Dumpable.DumpableContainer

isDumpable

Methods inherited from interface org.eclipse.jetty.util.component.LifeCycle

addEventListener, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeEventListener, start, stop

Field Details

NULL_CONTEXT_PATH

public static final String NULL_CONTEXT_PATH

Used for Oracle and other databases where "" is treated as NULL

See Also:

• Constant Field Values

_initialized

protected boolean _initialized

_dbAdaptor

protected DatabaseAdaptor _dbAdaptor

_sessionTableSchema

protected JDBCSessionDataStore.SessionTableSchema _sessionTableSchema

_schemaProvided

protected boolean _schemaProvided

Constructor Details

JDBCSessionDataStore

public JDBCSessionDataStore()

Method Details

doStart

protected void doStart()
                throws Exception

Description copied from class: ContainerLifeCycle

Starts the managed lifecycle beans in the order they were added.

Overrides:

doStart in class AbstractSessionDataStore

Throws:

Exception - If there was a problem starting. Will cause a transition to FAILED state

doStop

protected void doStop()
               throws Exception

Description copied from class: ContainerLifeCycle

Stops the managed lifecycle beans in the reverse order they were added.

Overrides:

doStop in class ContainerLifeCycle

Throws:

Exception - If there was a problem stopping. Will cause a transition to FAILED state

initialize

public void initialize()
                throws Exception

Throws:

Exception

doLoad

public SessionData doLoad(String id)
                   throws Exception

Description copied from class: AbstractSessionDataStore

Load the session from persistent store.

Specified by:

doLoad in class AbstractSessionDataStore

Parameters:

id - the id of the session to load

Returns:

the re-inflated session

Throws:

Exception - if unable to load the session

delete

public boolean delete(String id)
               throws Exception

Description copied from interface: SessionDataMap

Delete session data

Parameters:

id - identity of session to delete

Returns:

true if the session was deleted

Throws:

Exception - if unable to delete session data

doStore

public void doStore(String id,
 SessionData data,
 long lastSaveTime)
             throws Exception

Description copied from class: AbstractSessionDataStore

Store the session data persistently.

Specified by:

doStore in class AbstractSessionDataStore

Parameters:

id - identity of session to store

data - info of the session

lastSaveTime - time of previous save or 0 if never saved

Throws:

Exception - if unable to store data

doInsert

protected void doInsert(String id,
 SessionData data)
                 throws Exception

Throws:

Exception

doUpdate

protected void doUpdate(String id,
 SessionData data)
                 throws Exception

Throws:

Exception

doCheckExpired

public Set<String> doCheckExpired(Set<String> candidates,
 long time)

Description copied from class: AbstractSessionDataStore

Implemented by subclasses to resolve which sessions in this context that are being managed by this node that should be expired.

Specified by:

doCheckExpired in class AbstractSessionDataStore

Parameters:

candidates - the ids of sessions the SessionCache thinks has expired

time - the time at which to check for expiry

Returns:

the reconciled set of session ids that have been checked in the store

doGetExpired

public Set<String> doGetExpired(long timeLimit)

Description copied from class: AbstractSessionDataStore

Implemented by subclasses to find sessions for this context in the store that expired at or before the time limit and thus not being actively managed by any node. This method is only called periodically (the period is configurable) to avoid putting too much load on the store.

Specified by:

doGetExpired in class AbstractSessionDataStore

Parameters:

timeLimit - the upper limit of expiry times to check. Sessions expired at or before this timestamp will match.

Returns:

the empty set if there are no sessions expired as at the time, or otherwise a set of session ids.

doCleanOrphans

public void doCleanOrphans(long time)

Description copied from class: AbstractSessionDataStore

Implemented by subclasses to delete sessions for other contexts that expired at or before the timeLimit. These are 'orphaned' sessions that are no longer being actively managed by any node. These are explicitly sessions that do NOT belong to this context (other mechanisms such as doGetExpired take care of those). As they don't belong to this context, they cannot be loaded by us. This is called only periodically to avoid placing excessive load on the store.

Specified by:

doCleanOrphans in class AbstractSessionDataStore

Parameters:

time - the upper limit of the expiry time to check in msec

setDatabaseAdaptor

public void setDatabaseAdaptor(DatabaseAdaptor dbAdaptor)

setSessionTableSchema

public void setSessionTableSchema(JDBCSessionDataStore.SessionTableSchema schema)

isPassivating

@ManagedAttribute(value="does this store serialize sessions",
                  readonly=true)
public boolean isPassivating()

Description copied from interface: SessionDataStore

True if this type of datastore will passivate session objects

Returns:

true if this store can passivate sessions, false otherwise

doExists

public boolean doExists(String id)
                 throws Exception

Description copied from class: AbstractSessionDataStore

Check if a session for the given id exists.

Specified by:

doExists in class AbstractSessionDataStore

Parameters:

id - the session id to check

Returns:

true if the session exists in the persistent store, false otherwise

Throws:

Exception