Java Doc for StandardManager.java in  » Sevlet-Container » apache-tomcat-6.0.14 » org » apache » catalina » session » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Sevlet Container » apache tomcat 6.0.14 » org.apache.catalina.session 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.catalina.session.ManagerBase
      org.apache.catalina.session.StandardManager

All known Subclasses:   org.apache.catalina.ha.session.BackupManager,  org.apache.catalina.ha.session.SimpleTcpReplicationManager,
StandardManager
public class StandardManager extends ManagerBase implements Lifecycle,PropertyChangeListener(Code)
Standard implementation of the Manager interface that provides simple session persistence across restarts of this component (such as when the entire server is shut down and restarted, or when a particular web application is reloaded.

IMPLEMENTATION NOTE: Correct behavior of session storing and reloading depends upon external calls to the start() and stop() methods of this class at the correct times.
author:
   Craig R. McClanahan
author:
   Jean-Francois Arcand
version:
   $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (mar., 24 oct. 2006) $



Field Summary
final protected static  Stringinfo
     The descriptive information about this implementation.
protected  LifecycleSupportlifecycle
     The lifecycle event support for this component.
protected  intmaxActiveSessions
     The maximum number of active Sessions allowed, or -1 for no limit.
protected static  Stringname
     The descriptive name of this Manager implementation (for logging).
protected  Stringpathname
     Path name of the disk file in which active sessions are saved when we stop, and from which these sessions are loaded when we start.
protected  longprocessingTime
     Processing time during session expiration.
protected  intrejectedSessions
     Number of session creations that failed due to maxActiveSessions.
protected  booleanstarted
    


Method Summary
public  voidaddLifecycleListener(LifecycleListener listener)
     Add a lifecycle event listener to this component.
public  SessioncreateSession(String sessionId)
     Construct and return a new session object, based on the default settings specified by this Manager's properties.
protected  voiddoLoad()
     Load any currently active sessions that were previously unloaded to the appropriate persistence mechanism, if any.
protected  voiddoUnload()
     Save any currently active sessions in the appropriate persistence mechanism, if any.
protected  Filefile()
     Return a File object representing the pathname to our persistence file, if any.
public  LifecycleListener[]findLifecycleListeners()
     Get the lifecycle listeners associated with this lifecycle.
public  StringgetInfo()
     Return descriptive information about this Manager implementation and the corresponding version number, in the format <description>/<version>.
public  intgetMaxActiveSessions()
     Return the maximum number of active Sessions allowed, or -1 for no limit.
public  StringgetName()
     Return the descriptive short name of this Manager implementation.
public  StringgetPathname()
     Return the session persistence pathname, if any.
public  intgetRejectedSessions()
    
public  voidload()
     Load any currently active sessions that were previously unloaded to the appropriate persistence mechanism, if any.
public  voidpropertyChange(PropertyChangeEvent event)
     Process property change events from our associated Context.
public  voidremoveLifecycleListener(LifecycleListener listener)
     Remove a lifecycle event listener from this component.
public  voidsetContainer(Container container)
     Set the Container with which this Manager has been associated.
public  voidsetMaxActiveSessions(int max)
     Set the maximum number of actives Sessions allowed, or -1 for no limit.
public  voidsetPathname(String pathname)
     Set the session persistence pathname to the specified value.
public  voidsetRejectedSessions(int rejectedSessions)
    
public  voidstart()
     Prepare for the beginning of active use of the public methods of this component.
public  voidstop()
     Gracefully terminate the active use of the public methods of this component.
public  voidunload()
     Save any currently active sessions in the appropriate persistence mechanism, if any.

Field Detail
info
final protected static String info(Code)
The descriptive information about this implementation.



lifecycle
protected LifecycleSupport lifecycle(Code)
The lifecycle event support for this component.



maxActiveSessions
protected int maxActiveSessions(Code)
The maximum number of active Sessions allowed, or -1 for no limit.



name
protected static String name(Code)
The descriptive name of this Manager implementation (for logging).



pathname
protected String pathname(Code)
Path name of the disk file in which active sessions are saved when we stop, and from which these sessions are loaded when we start. A null value indicates that no persistence is desired. If this pathname is relative, it will be resolved against the temporary working directory provided by our context, available via the javax.servlet.context.tempdir context attribute.



processingTime
protected long processingTime(Code)
Processing time during session expiration.



rejectedSessions
protected int rejectedSessions(Code)
Number of session creations that failed due to maxActiveSessions.



started
protected boolean started(Code)
Has this component been started yet?





Method Detail
addLifecycleListener
public void addLifecycleListener(LifecycleListener listener)(Code)
Add a lifecycle event listener to this component.
Parameters:
  listener - The listener to add



createSession
public Session createSession(String sessionId)(Code)
Construct and return a new session object, based on the default settings specified by this Manager's properties. The session id will be assigned by this method, and available via the getId() method of the returned session. If a new session cannot be created for any reason, return null.
exception:
  IllegalStateException - if a new session cannot beinstantiated for any reason



doLoad
protected void doLoad() throws ClassNotFoundException, IOException(Code)
Load any currently active sessions that were previously unloaded to the appropriate persistence mechanism, if any. If persistence is not supported, this method returns without doing anything.
exception:
  ClassNotFoundException - if a serialized class cannot befound during the reload
exception:
  IOException - if an input/output error occurs



doUnload
protected void doUnload() throws IOException(Code)
Save any currently active sessions in the appropriate persistence mechanism, if any. If persistence is not supported, this method returns without doing anything.
exception:
  IOException - if an input/output error occurs



file
protected File file()(Code)
Return a File object representing the pathname to our persistence file, if any.



findLifecycleListeners
public LifecycleListener[] findLifecycleListeners()(Code)
Get the lifecycle listeners associated with this lifecycle. If this Lifecycle has no listeners registered, a zero-length array is returned.



getInfo
public String getInfo()(Code)
Return descriptive information about this Manager implementation and the corresponding version number, in the format <description>/<version>.



getMaxActiveSessions
public int getMaxActiveSessions()(Code)
Return the maximum number of active Sessions allowed, or -1 for no limit.



getName
public String getName()(Code)
Return the descriptive short name of this Manager implementation.



getPathname
public String getPathname()(Code)
Return the session persistence pathname, if any.



getRejectedSessions
public int getRejectedSessions()(Code)
Number of session creations that failed due to maxActiveSessions The count



load
public void load() throws ClassNotFoundException, IOException(Code)
Load any currently active sessions that were previously unloaded to the appropriate persistence mechanism, if any. If persistence is not supported, this method returns without doing anything.
exception:
  ClassNotFoundException - if a serialized class cannot befound during the reload
exception:
  IOException - if an input/output error occurs



propertyChange
public void propertyChange(PropertyChangeEvent event)(Code)
Process property change events from our associated Context.
Parameters:
  event - The property change event that has occurred



removeLifecycleListener
public void removeLifecycleListener(LifecycleListener listener)(Code)
Remove a lifecycle event listener from this component.
Parameters:
  listener - The listener to remove



setContainer
public void setContainer(Container container)(Code)
Set the Container with which this Manager has been associated. If it is a Context (the usual case), listen for changes to the session timeout property.
Parameters:
  container - The associated Container



setMaxActiveSessions
public void setMaxActiveSessions(int max)(Code)
Set the maximum number of actives Sessions allowed, or -1 for no limit.
Parameters:
  max - The new maximum number of sessions



setPathname
public void setPathname(String pathname)(Code)
Set the session persistence pathname to the specified value. If no persistence support is desired, set the pathname to null.
Parameters:
  pathname - New session persistence pathname



setRejectedSessions
public void setRejectedSessions(int rejectedSessions)(Code)



start
public void start() throws LifecycleException(Code)
Prepare for the beginning of active use of the public methods of this component. This method should be called after configure(), and before any of the public methods of the component are utilized.
exception:
  LifecycleException - if this component detects a fatal errorthat prevents this component from being used



stop
public void stop() throws LifecycleException(Code)
Gracefully terminate the active use of the public methods of this component. This method should be the last one called on a given instance of this component.
exception:
  LifecycleException - if this component detects a fatal errorthat needs to be reported



unload
public void unload() throws IOException(Code)
Save any currently active sessions in the appropriate persistence mechanism, if any. If persistence is not supported, this method returns without doing anything.
exception:
  IOException - if an input/output error occurs



Fields inherited from org.apache.catalina.session.ManagerBase
final protected static String DEFAULT_ALGORITHM(Code)(Java Doc)
protected String algorithm(Code)(Java Doc)
protected Container container(Code)(Java Doc)
protected String devRandomSource(Code)(Java Doc)
protected MessageDigest digest(Code)(Java Doc)
protected boolean distributable(Code)(Java Doc)
protected String domain(Code)(Java Doc)
protected int duplicates(Code)(Java Doc)
protected String entropy(Code)(Java Doc)
protected int expiredSessions(Code)(Java Doc)
protected boolean initialized(Code)(Java Doc)
protected Log log(Code)(Java Doc)
protected int maxActive(Code)(Java Doc)
protected int maxInactiveInterval(Code)(Java Doc)
protected MBeanServer mserver(Code)(Java Doc)
protected static String name(Code)(Java Doc)
protected ObjectName oname(Code)(Java Doc)
protected int processExpiresFrequency(Code)(Java Doc)
protected long processingTime(Code)(Java Doc)
protected Random random(Code)(Java Doc)
protected String randomClass(Code)(Java Doc)
protected DataInputStream randomIS(Code)(Java Doc)
protected int sessionAverageAliveTime(Code)(Java Doc)
protected int sessionCounter(Code)(Java Doc)
protected int sessionIdLength(Code)(Java Doc)
protected int sessionMaxAliveTime(Code)(Java Doc)
protected Map sessions(Code)(Java Doc)
protected static StringManager sm(Code)(Java Doc)
protected PropertyChangeSupport support(Code)(Java Doc)

Methods inherited from org.apache.catalina.session.ManagerBase
public void add(Session session)(Code)(Java Doc)
public void addPropertyChangeListener(PropertyChangeListener listener)(Code)(Java Doc)
public void backgroundProcess()(Code)(Java Doc)
public Session createEmptySession()(Code)(Java Doc)
public Session createSession()(Code)(Java Doc)
public Session createSession(String sessionId)(Code)(Java Doc)
public void destroy()(Code)(Java Doc)
public void expireSession(String sessionId)(Code)(Java Doc)
public Session findSession(String id) throws IOException(Code)(Java Doc)
public Session[] findSessions()(Code)(Java Doc)
protected synchronized String generateSessionId()(Code)(Java Doc)
public int getActiveSessions()(Code)(Java Doc)
public String getAlgorithm()(Code)(Java Doc)
public String getClassName()(Code)(Java Doc)
public Container getContainer()(Code)(Java Doc)
public synchronized MessageDigest getDigest()(Code)(Java Doc)
public boolean getDistributable()(Code)(Java Doc)
public String getDomain()(Code)(Java Doc)
public int getDuplicates()(Code)(Java Doc)
public Engine getEngine()(Code)(Java Doc)
public String getEntropy()(Code)(Java Doc)
public int getExpiredSessions()(Code)(Java Doc)
public String getInfo()(Code)(Java Doc)
public String getJvmRoute()(Code)(Java Doc)
public String getLastAccessedTime(String sessionId)(Code)(Java Doc)
public int getMaxActive()(Code)(Java Doc)
public int getMaxInactiveInterval()(Code)(Java Doc)
public String getName()(Code)(Java Doc)
protected StandardSession getNewSession()(Code)(Java Doc)
public ObjectName getObjectName()(Code)(Java Doc)
public int getProcessExpiresFrequency()(Code)(Java Doc)
public long getProcessingTime()(Code)(Java Doc)
public Random getRandom()(Code)(Java Doc)
protected void getRandomBytes(byte bytes)(Code)(Java Doc)
public String getRandomClass()(Code)(Java Doc)
public String getRandomFile()(Code)(Java Doc)
public HashMap getSession(String sessionId)(Code)(Java Doc)
public String getSessionAttribute(String sessionId, String key)(Code)(Java Doc)
public int getSessionAverageAliveTime()(Code)(Java Doc)
public int getSessionCounter()(Code)(Java Doc)
public int getSessionIdLength()(Code)(Java Doc)
public int getSessionMaxAliveTime()(Code)(Java Doc)
public void init()(Code)(Java Doc)
public String listSessionIds()(Code)(Java Doc)
public void postDeregister()(Code)(Java Doc)
public void postRegister(Boolean registrationDone)(Code)(Java Doc)
public void preDeregister() throws Exception(Code)(Java Doc)
public ObjectName preRegister(MBeanServer server, ObjectName name) throws Exception(Code)(Java Doc)
public void processExpires()(Code)(Java Doc)
public void remove(Session session)(Code)(Java Doc)
public void removePropertyChangeListener(PropertyChangeListener listener)(Code)(Java Doc)
public void setAlgorithm(String algorithm)(Code)(Java Doc)
public void setContainer(Container container)(Code)(Java Doc)
public void setDistributable(boolean distributable)(Code)(Java Doc)
public void setDuplicates(int duplicates)(Code)(Java Doc)
public void setEntropy(String entropy)(Code)(Java Doc)
public void setExpiredSessions(int expiredSessions)(Code)(Java Doc)
public void setMaxActive(int maxActive)(Code)(Java Doc)
public void setMaxInactiveInterval(int interval)(Code)(Java Doc)
public void setProcessExpiresFrequency(int processExpiresFrequency)(Code)(Java Doc)
public void setProcessingTime(long processingTime)(Code)(Java Doc)
public void setRandomClass(String randomClass)(Code)(Java Doc)
public void setRandomFile(String s)(Code)(Java Doc)
public void setSessionAverageAliveTime(int sessionAverageAliveTime)(Code)(Java Doc)
public void setSessionCounter(int sessionCounter)(Code)(Java Doc)
public void setSessionIdLength(int idLength)(Code)(Java Doc)
public void setSessionMaxAliveTime(int sessionMaxAliveTime)(Code)(Java Doc)

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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