How can I distinguish different action mapping in one ActionClass file?

Question

I would like to create a ActionClass which will handle 3 mapping which comes from /add, /show or /del.
My question is how can I change the code so that the ActionClass servlet can distinguish the request from different url mapping ? Can anyone give me some short hints? Thx.
struts-config.xml
<action-mappings>
<action name="MemberInfoForm" path="/add" scope="request" type="com.myapp.real.MemberAction">
<action name="MemberInfoForm" path="/show" scope="request" type="com.myapp.real.MemberAction">
<action name="MemberInfoForm" path="/del" scope="request" type="com.myapp.real.MemberAction">
</action-mappings>MemberAction.class
public class MemberAction extends org.apache.struts.action.Action {
    private final static String SUCCESS = "success";
    public ActionForward execute(ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        return mapping.findForward(SUCCESS);
...

Answer 1

http://struts.apache.org/1.2.x/api/org/apache/struts/actions/MappingDispatchAction.html
http://struts.apache.org/1.2.x/api/org/apache/struts/actions/DispatchAction.html
Thank you so much for all of your suggestion.
I read the document of MappingDispatchAction and its note say:
NOTE - Unlike DispatchAction, mapping characteristics may differ between the various handlers, so you can combine actions in the same class that, for example, differ in their use of forms or validation.........
I wonder in DispatchAction, we can also have various forms or validation as MappingDispatchAction does, just by using different name in the action tag, for example:
<action input="/p1.jsp" name="MForm1" path="/member" scope="session" parameter="action" type="com.myapp.real.MemberAction">
<action input="/p2.jsp" name="MForm2" path="/member" scope="session" parameter="action" type="com.myapp.real.MemberAction">
<action input="/p3.jsp" name="MForm3" path="/member" scope="session" parameter="action" type="com.myapp.real.MemberAction">Hence, it is not the difference as stated from the NOTE, right?
Edited by: roamer on Jan 22, 2008 10:32 AM