com.ashridgetech.gen2j.web
Class LinkAction

java.lang.Object
  |
  +--org.apache.struts.action.Action
        |
        +--com.ashridgetech.gen2j.web.LinkAction

public class LinkAction

extends org.apache.struts.action.Action

Implementation of Action that processes a request to obtain one UCM from another.

The perform method

• extracts the HTTP request parameters containing the id of the containing view's UCM (_ucmId) and the name of the property requested (_prop)
• finds the view's UCM from master session UCM
• asks it for the UCM for the requested property
• finds the correct JSP to display that UCM
• returns the view URL in an ActionForward to Struts

  Field Summary

  static String	UCM_ID_PARAM
  static String	UCM_PROPERTY_PARAM

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

  DATA_SOURCE_KEY, defaultLocale, ERROR_KEY, EXCEPTION_KEY, FORM_BEANS_KEY, FORWARDS_KEY, LOCALE_KEY, MAPPING_KEY, MAPPINGS_KEY, MESSAGES_KEY, MULTIPART_KEY, servlet, SERVLET_KEY, TRANSACTION_TOKEN_KEY

  Constructor Summary

  LinkAction()
  

  Method Summary

  org.apache.struts.action.ActionForward	perform(org.apache.struts.action.ActionMapping mapping, org.apache.struts.action.ActionForm form, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Find the UCM to process the specified HTTP request, and forward to the view JSP for the requested UCM.
  static String	propertyLink(javax.servlet.ServletRequest request, String propertyName) Get the contents of a property link which will refer to a property of the current UCM object.

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

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

  Methods inherited from class java.lang.Object

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

  Field Detail

  UCM_ID_PARAM

  public static String UCM_ID_PARAM

  UCM_PROPERTY_PARAM

  public static String UCM_PROPERTY_PARAM

  Constructor Detail

  LinkAction

  public LinkAction()

  Method Detail

  perform

  public org.apache.struts.action.ActionForward perform(org.apache.struts.action.ActionMapping mapping,
                                                        org.apache.struts.action.ActionForm form,
                                                        javax.servlet.http.HttpServletRequest request,
                                                        javax.servlet.http.HttpServletResponse response)
                                                 throws IOException,
                                                        javax.servlet.ServletException

  Find the UCM to process the specified HTTP request, and forward to the view JSP for the requested UCM.

  Overrides:

  perform in class org.apache.struts.action.Action

  Parameters:

  mapping - The ActionMapping used to select this instance

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

  request - The HTTP request we are processing

  response - The HTTP response we are creating

  Returns:

  an ActionForward indicating the required JSP

  Throws:

  IOException - if an input/output error occurs

  javax.servlet.ServletException - if a servlet exception occurs

  propertyLink

  public static String propertyLink(javax.servlet.ServletRequest request,
                                    String propertyName)
                             throws javax.servlet.ServletException

  Get the contents of a property link which will refer to a property of the current UCM object. The current object of the JspManager for the current request must be a UCM

  Parameters:

  request - used to find the current JspManager

  propertyName - the property to be accessed byte the link

  Returns:

  the value for the "page" attribute of the Struts html:link element

  Throws:

  javax.servlet.ServletException - if the current object is not a UCM