org.apache.turbine.modules.actions.sessionvalidator
Class DefaultSessionValidator

java.lang.Object
  |
  +--org.apache.turbine.modules.Assembler
        |
        +--org.apache.turbine.modules.Action
              |
              +--org.apache.turbine.modules.actions.sessionvalidator.SessionValidator
                    |
                    +--org.apache.turbine.modules.actions.sessionvalidator.DefaultSessionValidator

public class DefaultSessionValidator
extends SessionValidator

The SessionValidator attempts to retrieve the User object from the Servlet API session that is associated with the request. If the data cannot be retrieved, it is handled here. If the user has not been marked as being logged into the system, the user is rejected and the screen is set to the screen.homepage value in TurbineResources.properties.

Other systems generally have a database table which stores this information, but we take advantage of the Servlet API here to save a hit to the database for each and every connection that a user makes.

This action is special in that it should only be executed by the Turbine servlet.

Version:
$Id: DefaultSessionValidator.java,v 1.4 2002/07/11 16:53:29 mpoeschl Exp $
Author:
Dave Bryson

Constructor Summary
DefaultSessionValidator()
           
 
Method Summary
 void doPerform(RunData data)
          Execute the action.
 
Methods inherited from class org.apache.turbine.modules.Action
perform
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DefaultSessionValidator

public DefaultSessionValidator()
Method Detail

doPerform

public void doPerform(RunData data)
               throws java.lang.Exception
Execute the action. The default is to populate the RunData object and, if the user is unknown, to force a login screen (as set in the tr.props).
Overrides:
doPerform in class Action
Parameters:
data - Turbine RunData context information. * @exception Exception, a generic exception.
See Also:
InvalidState


Copyright © 2000-2002 Apache Software Foundation. All Rights Reserved.