org.apache.struts.webapp.example
Class LogonAction

java.lang.Object
  org.apache.struts.action.Action
      org.apache.struts.webapp.example.LogonAction

public final class LogonAction
extends Action

Implementation of Action that validates a user logon.

Version:

$Rev: 471754 $ $Date: 2006-11-06 08:55:09 -0600 (Mon, 06 Nov 2006) $

Author:

Craig R. McClanahan

Field Summary

Fields inherited from class org.apache.struts.action.Action

servlet

Constructor Summary

LogonAction()

Method Summary

ActionForward	execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) Process the specified HTTP request, and create the corresponding HTTP response (or forward to another web component that will create it).
User	getUser(UserDatabase database, String username) Look up the user, throwing an exception to simulate business logic rule exceptions.

Methods inherited from class org.apache.struts.action.Action

addErrors, addMessages, execute, generateToken, getErrors, getLocale, getMessages, getResources, getResources, getServlet, isCancelled, isTokenValid, isTokenValid, resetToken, saveErrors, saveErrors, saveMessages, saveMessages, saveToken, setLocale, setServlet

Methods inherited from class java.lang.Object

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

Constructor Detail

LogonAction

public LogonAction()

Method Detail

execute

public ActionForward execute(ActionMapping mapping,
                             ActionForm form,
                             HttpServletRequest request,
                             HttpServletResponse response)
                      throws Exception

Process the specified HTTP request, and create the corresponding HTTP response (or forward to another web component that will create it). Return an ActionForward instance describing where and how control should be forwarded, or null if the response has already been completed.

Overrides:

execute in class Action

Parameters:

mapping - The ActionMapping used to select this instance

form - The optional ActionForm bean for this request (if any)

request - The HTTP request we are processing

response - The HTTP response we are creating

Throws:

Exception - if business logic throws an exception

getUser

public User getUser(UserDatabase database,
                    String username)
             throws ModuleException

Look up the user, throwing an exception to simulate business logic rule exceptions.

Parameters:

database - Database in which to look up the user

username - Username specified on the logon form

Throws:

AppException - if a business logic rule is violated

ModuleException