Interface SessionDataStore

All Superinterfaces:

LifeCycle, SessionDataMap

All Known Implementing Classes:

AbstractSessionDataStore, CachingSessionDataStore, FileSessionDataStore, HazelcastSessionDataStore, JDBCSessionDataStore, MongoSessionDataStore, NoSqlSessionDataStore, NullSessionDataStore, ObjectStreamSessionDataStore

public interface SessionDataStore
extends SessionDataMap

A store for the data contained in a Session object. The store would usually be persistent.

Nested Class Summary

Nested classes/interfaces inherited from interface LifeCycle

LifeCycle.Listener

Method Summary

Modifier and Type	Method	Description
boolean	exists(String id)	Test if data exists for a given session id.
Set<String>	getExpired(Set<String> candidates)	Called periodically, this method should search the data store for sessions that have been expired for a 'reasonable' amount of time.
boolean	isPassivating()	True if this type of datastore will passivate session objects
SessionData	newSessionData(String id, long created, long accessed, long lastAccessed, long maxInactiveMs)	Create a new SessionData

Methods inherited from interface LifeCycle

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

Methods inherited from interface SessionDataMap

delete, initialize, load, store

Method Details

newSessionData

SessionData newSessionData(String id,
 long created,
 long accessed,
 long lastAccessed,
 long maxInactiveMs)

Create a new SessionData

Parameters:

id - the id

created - the timestamp when created

accessed - the timestamp when accessed

lastAccessed - the timestamp when last accessed

maxInactiveMs - the max inactive time in milliseconds

Returns:

a new SessionData object

getExpired

Set<String> getExpired(Set<String> candidates)

Called periodically, this method should search the data store for sessions that have been expired for a 'reasonable' amount of time.

Parameters:

candidates - if provided, these are keys of sessions that the SessionDataStore thinks has expired and should be verified by the SessionDataStore

Returns:

set of session ids

isPassivating

boolean isPassivating()

True if this type of datastore will passivate session objects

Returns:

true if this store can passivate sessions, false otherwise

exists

boolean exists(String id)
        throws Exception

Test if data exists for a given session id.

Parameters:

id - Identity of session whose existence should be checked

Returns:

true if valid, non-expired session exists

Throws:

Exception - if problem checking existence with persistence layer