org.apache.catalina.session

## Class PersistentManager

- java.lang.Object
- - org.apache.catalina.util.LifecycleBase
  - - org.apache.catalina.util.LifecycleMBeanBase
    - - org.apache.catalina.session.ManagerBase
      - - org.apache.catalina.session.PersistentManagerBase
        - - org.apache.catalina.session.PersistentManager

- All Implemented Interfaces:
    MBeanRegistration, DistributedManager, JmxEnabled, Lifecycle, Manager, StoreManager

      public final class PersistentManager
      extends PersistentManagerBase

  Implementation of the Manager interface that makes use of a Store to swap active Sessions to disk. It can be configured to achieve several different goals:
  - Persist sessions across restarts of the Container
  - Fault tolerance, keep sessions backed up on disk to allow recovery in the event of unplanned restarts.
  - Limit the number of active sessions kept in memory by swapping less active sessions out to disk.
  Author:
    Kief Morris (kief@kief.com)

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.catalina.session.ManagerBase

      `ManagerBase.SessionTiming`

    - ### Nested classes/interfaces inherited from interface org.apache.catalina.Lifecycle

      `Lifecycle.SingleUse`

  - ### Field Summary

    - ### Fields inherited from class org.apache.catalina.session.PersistentManagerBase

      `maxIdleBackup, maxIdleSwap, minIdleSwap, saveOnRestart, store`

    - ### Fields inherited from class org.apache.catalina.session.ManagerBase

      `duplicates, expiredSessions, maxActive, maxActiveSessions, processExpiresFrequency, processingTime, rejectedSessions, secureRandomAlgorithm, secureRandomClass, secureRandomProvider, sessionCounter, sessionCreationTiming, sessionExpirationTiming, sessionIdGenerator, sessionIdGeneratorClass, sessionMaxAliveTime, sessions, sm, support, TIMING_STATS_CACHE_SIZE`

    - ### Fields inherited from class org.apache.catalina.util.LifecycleMBeanBase

      `mserver`

    - ### Fields inherited from interface org.apache.catalina.Lifecycle

      `AFTER_DESTROY_EVENT, AFTER_INIT_EVENT, AFTER_START_EVENT, AFTER_STOP_EVENT, BEFORE_DESTROY_EVENT, BEFORE_INIT_EVENT, BEFORE_START_EVENT, BEFORE_STOP_EVENT, CONFIGURE_START_EVENT, CONFIGURE_STOP_EVENT, PERIODIC_EVENT, START_EVENT, STOP_EVENT`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `PersistentManager()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `getName()`

    - ### Methods inherited from class org.apache.catalina.session.PersistentManagerBase

      `clearStore, findSession, getActiveSessionsFull, getMaxIdleBackup, getMaxIdleSwap, getMinIdleSwap, getSaveOnRestart, getSessionIdsFull, getStore, isLoaded, load, processExpires, processMaxActiveSwaps, processMaxIdleBackups, processMaxIdleSwaps, processPersistenceChecks, remove, removeSession, removeSuper, setMaxIdleBackup, setMaxIdleSwap, setMinIdleSwap, setSaveOnRestart, setStore, startInternal, stopInternal, swapIn, swapOut, unload, writeSession`

    - ### Methods inherited from class org.apache.catalina.session.ManagerBase

      `add, addPropertyChangeListener, backgroundProcess, changeSessionId, changeSessionId, changeSessionId, createEmptySession, createSession, expireSession, findSessions, generateSessionId, getActiveSessions, getClassName, getContext, getCreationTime, getCreationTimestamp, getDomainInternal, getDuplicates, getEngine, getExpiredSessions, getJvmRoute, getLastAccessedTime, getLastAccessedTimestamp, getMaxActive, getMaxActiveSessions, getNewSession, getObjectNameKeyProperties, getPersistAuthentication, getProcessExpiresFrequency, getProcessingTime, getRejectedSessions, getSecureRandomAlgorithm, getSecureRandomClass, getSecureRandomProvider, getSession, getSessionAttribute, getSessionAttributeNameFilter, getSessionAttributeNamePattern, getSessionAttributeValueClassNameFilter, getSessionAttributeValueClassNamePattern, getSessionAverageAliveTime, getSessionCounter, getSessionCreateRate, getSessionExpireRate, getSessionIdGenerator, getSessionMaxAliveTime, getThisAccessedTime, getThisAccessedTimestamp, getWarnOnSessionAttributeFilterFailure, initInternal, listSessionIds, remove, removePropertyChangeListener, rotateSessionId, setContext, setDuplicates, setExpiredSessions, setMaxActive, setMaxActiveSessions, setPersistAuthentication, setProcessExpiresFrequency, setProcessingTime, setSecureRandomAlgorithm, setSecureRandomClass, setSecureRandomProvider, setSessionAttributeNameFilter, setSessionAttributeValueClassNameFilter, setSessionCounter, setSessionIdGenerator, setSessionMaxAliveTime, setWarnOnSessionAttributeFilterFailure, toString, updateSessionMaxAliveTime, willAttributeDistribute`

    - ### Methods inherited from class org.apache.catalina.util.LifecycleMBeanBase

      `destroyInternal, getDomain, getObjectName, postDeregister, postRegister, preDeregister, preRegister, register, setDomain, unregister`

    - ### Methods inherited from class org.apache.catalina.util.LifecycleBase

      `addLifecycleListener, destroy, findLifecycleListeners, fireLifecycleEvent, getState, getStateName, getThrowOnFailure, init, removeLifecycleListener, setState, setState, setThrowOnFailure, start, stop`

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### PersistentManager

          public PersistentManager()

  - ### Method Detail

    - #### getName

          public String getName()

      Overrides:
        `getName` in class `PersistentManagerBase`
      Returns:
        The descriptive short name of this Manager implementation.

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