org.davesag.generica.servlet.action
Class LoadTargetAction

java.lang.Object
  org.apache.struts.action.Action
      org.davesag.generica.servlet.action.AbstractAction
          org.davesag.generica.servlet.action.LoadTargetAction

public class LoadTargetAction

extends AbstractAction

This action loads the appropriate object into the request for use by forms and following actions. It loads the target object into the request under the key Constants.TARGET_KEY, and loads a summary of the target object into the request under the key Constants.TARGET_SUMMARY_KEY. What these objects are, and how they are loaded, is entirely up to the Loader you specify in the struts-config.xml file.

Since:

Generica 1.0

Version:

CVS Revision $Id: LoadTargetAction.java,v 1.21 2004/04/06 15:40:41 davesag Exp $

Author:

Dave Sag http://www.davesag.com

Field Summary

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

ACTION_SERVLET_KEY, APPLICATION_KEY, DATA_SOURCE_KEY, defaultLocale, ERROR_KEY, EXCEPTION_KEY, FORM_BEANS_KEY, FORWARDS_KEY, LOCALE_KEY, MAPPING_KEY, MAPPINGS_KEY, MESSAGE_KEY, MESSAGES_KEY, MULTIPART_KEY, PLUG_INS_KEY, REQUEST_PROCESSOR_KEY, servlet, SERVLET_KEY, TRANSACTION_TOKEN_KEY

Constructor Summary

LoadTargetAction()

Method Summary

ActionForward

execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) Tries to get the id from the param called "target" in the request and loads the associated object into a Pipe using the Controller specified in the ActionMapping, under key Constants.TARGET_KEY.

Methods inherited from class org.davesag.generica.servlet.action.AbstractAction

abortTransaction, commitTransaction, furtherActions, genericActions, getApplication, getController, getController, getHibernateSession, getLocale, getMessages, getNextForward, openTransaction, presentation, saveActionErrors, setNextForward

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

execute, generateToken, getDataSource, getDataSource, getLocale, getResources, getResources, getResources, getServlet, isCancelled, isTokenValid, isTokenValid, perform, perform, resetToken, saveErrors, saveMessages, saveToken, setLocale, setServlet, toHex

Methods inherited from class java.lang.Object

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

Constructor Detail

LoadTargetAction

public LoadTargetAction()

Method Detail

execute

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

Tries to get the id from the param called "target" in the request and loads the associated object into a Pipe using the Controller specified in the ActionMapping, under key Constants.TARGET_KEY.

If there is no target param then it looks in the Pipe for the object.
If there is no existing Pipe one is created using the pipe-name supplied in the ActionMapping, ie from struts-config.xml
If successful this action hands control on to the ActionForward named "success" and loads the request with a Summary object that summarises the loaded object according to the supplied summary-controller, if not then it hands control on to a forward named "fail".

Parameters:

mapping - The ActionMapping which must have a name param that matches the names provided to any following forms and actions.

form - The Struts ActionForm

request - The servlet request.

response - The servlet response.

Returns:

the right forward

Throws:

Exception - if something broke.