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Java Source Code / Java Documentation » J2EE » Enhydra Application Framework » com.lutris.appserver.server.sessionEnhydra 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   com.lutris.appserver.server.sessionEnhydra.BasicSessionHome

BasicSessionHome
public class BasicSessionHome implements StandardSessionHome(Code)
BasicSessionHome creates instances of BasicSession and manages the 'active'/'passive' state of those sessions. All sessions created by BasicSessionHome are held in memory.

The following parameters can be used to configure the BasicSessionHome. They should be grouped together in a section, normally SessionManager.SessionHome, which is specified to the constructor.

  • MaxSessions: {int}

    Specifies the maximum number of in use concurrent sessions. If this value is exceeded then CreateSession() will throw a CreateSessionException. -1 indicates unlimited session. If MaxSessions is not set in the application's configuration then MaxSessions defaults to unlimited sessions.


See Also:   BasicSession
See Also:   StandardSession
See Also:   StandardSessionManager
version:
   $Revision: 1.3 $
author:
   Kyle Clark



Constructor Summary
public  BasicSessionHome(StandardSessionManager sessionMgr, Config config)
    
Parameters:
  sessionMgr - The session manager associated with this session home.
Parameters:
  config - Object parsed from configuration file.
public  BasicSessionHome(StandardSessionManager sessionMgr, Config config, ClassLoader loader)
    
Parameters:
  sessionMgr - The session manager associated with this session home.
Parameters:
  config - Object parsed from configuration file.

Method Summary
public  booleancontainsKey(String sessionKey)
     Specifies if a key is currently bound to a session.
public synchronized  StandardSessioncreateSession(String sessionKey)
     Creates and returns a new session instance.
protected  voiddebug(int level, String msg)
     Prints debug information under Logger.DEBUG.
public synchronized  StandardSessiongetSession(String sessionKey)
     Returns the session bound to the session key. The session must already be in the 'active' state and associated with the current thread, otherwise null is returned.
Parameters:
  sessionKey - the session key for the session.
public synchronized  StandardSessiongetSession(Thread thread, String sessionKey)
     Returns the session bound to the specified session key.
public synchronized  Enumerationkeys()
     Returns an enumeration of the keys for all the sessions.
public  intpagedSize()
     Returns the current number of sessions that are paged to persistent store.
public synchronized  voidpassivateSession(Thread thread, String sessionKey)
     Puts a session into the 'passive' state.
public synchronized  voidremoveSession(String sessionKey)
     Removes a session from the cache.
public  voidshutdown()
     Shuts dows the session home.
public  intsize()
     Returns the current number of sessions.


Constructor Detail
BasicSessionHome
public BasicSessionHome(StandardSessionManager sessionMgr, Config config) throws ConfigException(Code)

Parameters:
  sessionMgr - The session manager associated with this session home.
Parameters:
  config - Object parsed from configuration file. This should befor the section constaining the standard session home configuration.
exception:
  ConfigException - signifies a problem in the configuration file.



BasicSessionHome
public BasicSessionHome(StandardSessionManager sessionMgr, Config config, ClassLoader loader) throws ConfigException(Code)

Parameters:
  sessionMgr - The session manager associated with this session home.
Parameters:
  config - Object parsed from configuration file. This should befor the section constaining the standard session home configuration.
Parameters:
  loader - The class load to use when load objects from persistent store.
exception:
  ConfigException - signifies a problem in the configuration file.




Method Detail
containsKey
public boolean containsKey(String sessionKey) throws SessionException(Code)
Specifies if a key is currently bound to a session.
Parameters:
  sessionKey - the session key to be tested.true if the session key is in use.
exception:
  SessionException - if the existence of the key cannot be determined.



createSession
public synchronized StandardSession createSession(String sessionKey) throws CreateSessionException, DuplicateKeyException, SessionException(Code)
Creates and returns a new session instance. The session is bound to the specified session key. The session is also associated with the current thread and is considered in the 'active' state. The session remains in the 'active' state until the thread puts the session into the 'passive' state.. Only this thread will be able to put the session into the 'passive' state.
Parameters:
  sessionKey - the key to associate with the session. the newly created session.
exception:
  CreateSessionException - if the session cannot becreated.
exception:
  DuplicateKeyException - if the session cannotbe created because the key is already in use.
exception:
  SessionException - if an error occurs.
See Also:   BasicSessionHome.passivateSession



debug
protected void debug(int level, String msg)(Code)
Prints debug information under Logger.DEBUG.
Parameters:
  level - the debug level.
Parameters:
  msg - the message to print.



getSession
public synchronized StandardSession getSession(String sessionKey) throws SessionException(Code)
Returns the session bound to the session key. The session must already be in the 'active' state and associated with the current thread, otherwise null is returned.
Parameters:
  sessionKey - the session key for the session. If the sessiondoesn't exist or is not is not bound to the currentthread then null is returned.the session.
exception:
  SessionException - if the session cannot be retrieved.
See Also:   BasicSessionHome.getSession(Thread,String)



getSession
public synchronized StandardSession getSession(Thread thread, String sessionKey) throws SessionException(Code)
Returns the session bound to the specified session key. The session is put into the 'active' state. The session is also associated with the specified thread. Only this thread will be able to put the session back into the 'passive' state once it is done with the session.
Parameters:
  thread - the thread that should be associated withthe session while it is in the active state. Only thisthread can put the session back into the passive state.
Parameters:
  sessionKey - the session key for the session that will be made'active' and returned. If the session doesn't existthen null is returned.the session.
exception:
  SessionException - if the session cannot be retrieved.
See Also:   BasicSessionHome.passivateSession



keys
public synchronized Enumeration keys() throws SessionException(Code)
Returns an enumeration of the keys for all the sessions. the enumeration of session keys.
exception:
  SessionException - if the session enumeration cannot be retrieved.



pagedSize
public int pagedSize() throws SessionException(Code)
Returns the current number of sessions that are paged to persistent store. the 'paged' session count.
exception:
  SessionException - if the size cannot be determined



passivateSession
public synchronized void passivateSession(Thread thread, String sessionKey) throws SessionException(Code)
Puts a session into the 'passive' state. A 'passive' session may be made persistent. Only the thread that put the session into the 'active' state may put the session into the 'passive' state.
Parameters:
  thread - the thread that is currently associatedwith the session.
Parameters:
  sessionKey - the session key for the session that will be made passive.
exception:
  SessionException - if the session cannot be retrieved.



removeSession
public synchronized void removeSession(String sessionKey) throws SessionException(Code)
Removes a session from the cache. If the session doesn't exist the opration is ignored.
Parameters:
  sessionKey - the session key associated with the session.
exception:
  SessionException - if the session cannot be retrieved.



shutdown
public void shutdown()(Code)
Shuts dows the session home.



size
public int size() throws SessionException(Code)
Returns the current number of sessions. the 'active' session count.
exception:
  SessionException - if the size cannot be determined



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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