How Is The Action Class Called??

[Ravissant Markandey]

Hi Everyone, Im working on a project where the Action class extends itself from some other class, the "execute()" method is missing in the action class but is present in its superclass, my question is : how is action class called??..the constructor simply calls the constructor of the super class, BUT HOW DOES THE execute() METHOD IN THE SUPER CLASS GET CALLED??.
Heres some of the code from both the superclass and the actionclass.Please note, the path pointed to in the struts-config is that of the subclass or the ListViewActionClass:

The Action Class:

import java.util.Enumeration;
import java.util.Hashtable;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
 
////more imports///
 
 
public class ListViewAction extends TableAction {
 

 
/**
* Constructor
*/
public ListViewAction() {
super();
}
 
/**
 * @see com.icici.triton.collections.struts.actions.ADisplayTableAction#executeAction(ActionForm, HttpServletRequest)
 */
protected String executeAction(ActionForm form, HttpServletRequest request)
throws Exception {
 
            //////Lot Of code//////
}
 
}

Now, the superclass:

import java.util.HashSet;
import java.util.Hashtable;
import java.util.Locale;
import java.util.StringTokenizer;
 
////more imports/////
 
 
abstract public class TableAction extends Action {
 
private static Logger logger = Logger.getLogger(ADisplayTableAction.class);
 
private HttpServletRequest request = null;
private HttpServletResponse response = null;
private ActionForm actionForm = null;
private ActionMapping actionMapping = null;
private ActionErrors actionErrors = null;
private ActionForward actionForward = null;
 
private Hashtable htQueryParams = null;
private Locale displayLocale = null;
 
/**
* Constructor
*/
public TableAction() {
 
super();
 
}
public ActionForward execute(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
 
//////Lot of code/////////////
 
             strForward = executeAction(form, request);
 
              ///////////Lot Of Code///////////
            
               abstract protected String executeAction(
ActionForm form,
HttpServletRequest request)
throws Exception;
 
 
 
 
return mapping.findForward(strForward);
 
}
 

 
}

Thanks in advance,
Ravissant Markenday
[ April 10, 2008: Message edited by: Ravissant Markandey ]

[Joe Ess]

Originally posted by Ravissant Markandey:
how is action class called?

The execute method is inherited by the derived class. Are you familiar with inheritance?