## org.mortbay.jetty.servlet
Class HashSessionIdManager

    java.lang.Object
      org.mortbay.component.AbstractLifeCycle
          org.mortbay.jetty.servlet.HashSessionIdManager

All Implemented Interfaces:
  LifeCycle, SessionIdManager

    public class HashSessionIdManager

extends AbstractLifeCycle
implements SessionIdManager

HashSessionIdManager. An in-memory implementation of the session ID manager.

Field Summary
`protected Random` `_random`
`protected static String` `SESSION_ID_RANDOM_ALGORITHM`
`protected static String` `SESSION_ID_RANDOM_ALGORITHM_ALT`

Constructor Summary
`HashSessionIdManager()`
`HashSessionIdManager(Random random)`

Method Summary
`void` `addSession(HttpSession session)` Add a session to the list of known sessions for a given ID.
`protected void` `doStart()`
`protected void` `doStop()`
`String` `getClusterId(String nodeId)` Get the session ID with any worker ID.
`String` `getNodeId(String clusterId, HttpServletRequest request)` Get the session ID with any worker ID.
`Random` `getRandom()`
`String` `getWorkerName()` Get the workname.
`boolean` `idInUse(String id)`
`void` `invalidateAll(String id)` Call `HttpSession.invalidate()` on all known sessions for the given id.
`String` `newSessionId(HttpServletRequest request, long created)`
`void` `removeSession(HttpSession session)` Remove session from the list of known sessions for a given ID.
`void` `setRandom(Random random)`
`void` `setWorkerName(String workerName)` Set the workname.

Methods inherited from class org.mortbay.component.AbstractLifeCycle
`isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, start, stop`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.mortbay.component.LifeCycle
`isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, start, stop`

Field Detail

### SESSION_ID_RANDOM_ALGORITHM

    protected static final String SESSION_ID_RANDOM_ALGORITHM

See Also:
  Constant Field Values

### SESSION_ID_RANDOM_ALGORITHM_ALT

    protected static final String SESSION_ID_RANDOM_ALGORITHM_ALT

See Also:
  Constant Field Values

### _random

    protected Random _random

Constructor Detail

### HashSessionIdManager

    public HashSessionIdManager()

### HashSessionIdManager

    public HashSessionIdManager(Random random)

Method Detail

### getWorkerName

    public String getWorkerName()

  Get the workname. If set, the workername is dot appended to the session ID and can be used to assist session affinity in a load balancer.

  Specified by:
    `getWorkerName` in interface `SessionIdManager`
  Returns:
    String or null

### setWorkerName

    public void setWorkerName(String workerName)

  Set the workname. If set, the workername is dot appended to the session ID and can be used to assist session affinity in a load balancer.

  Parameters:
    `workerName` -

### getNodeId

    public String getNodeId(String clusterId,
                            HttpServletRequest request)

  Get the session ID with any worker ID.

  Specified by:
    `getNodeId` in interface `SessionIdManager`
  Parameters:
    `request` -
    `clusterId` - The ID of the session
  Returns:
    sessionId plus any worker ID.

### getClusterId

    public String getClusterId(String nodeId)

  Get the session ID with any worker ID.

  Specified by:
    `getClusterId` in interface `SessionIdManager`
  Parameters:
    `request` -
  Returns:
    sessionId plus any worker ID.

### doStart

    protected void doStart()

  Overrides:
    `doStart` in class `AbstractLifeCycle`

### doStop

    protected void doStop()

  Overrides:
    `doStop` in class `AbstractLifeCycle`

### idInUse

    public boolean idInUse(String id)

  Specified by:
    `idInUse` in interface `SessionIdManager`
  Parameters:
    `id` - The session ID without any cluster node extension
  Returns:
    True if the session ID is in use by at least one context.

### addSession

    public void addSession(HttpSession session)

  Description copied from interface: `SessionIdManager`
  Add a session to the list of known sessions for a given ID.

  Specified by:
    `addSession` in interface `SessionIdManager`
  Parameters:
    `session` - The session

### removeSession

    public void removeSession(HttpSession session)

  Description copied from interface: `SessionIdManager`
  Remove session from the list of known sessions for a given ID.

  Specified by:
    `removeSession` in interface `SessionIdManager`

### invalidateAll

    public void invalidateAll(String id)

  Description copied from interface: `SessionIdManager`
  Call `HttpSession.invalidate()` on all known sessions for the given id.

  Specified by:
    `invalidateAll` in interface `SessionIdManager`
  Parameters:
    `id` - The session ID without any cluster node extension

### newSessionId

    public String newSessionId(HttpServletRequest request,
                               long created)

  Specified by:
    `newSessionId` in interface `SessionIdManager`
  Returns:

### getRandom

    public Random getRandom()

### setRandom

    public void setRandom(Random random)

Copyright © 2008 Mort Bay Consulting. All Rights Reserved.