Difference Between DispatchAction and Action (Not the usual question)

[Adarsh Raj]

I know what is the difference between DispatchAction and Action.....I want to know is there any Performance/Security difference between the two..
I can use the Action class as a DispatchAction one if i code something like this

struts-config.xml

    
<action-mappings>
	<action 
		path="/addUserAction"
		type="com.test.action.UserAction"
		parameter="addUser"
		....>
		<forward />
	</action>
	<action 
		path="/deleteUserAction"
		type="com.test.action.UserAction"
		parameter="deleteUser"
		....>
		<forward ....../>
	</action>
</action-mappings>

Then in the action class

    
public class UserAction extends Action{
	public ActionForward action(ActionMapping mapping, ActionForm form, ......){
		String value = mapping.getParameter();
		
		if(value.equals("addUser")
			return addUser(mapping, form, request, respose);
		else if(value.equals("deleteUser")
			return addUser(mapping, form, request, respose);
		.....
		......
	}
	
	private ActionForward addUser(ActionMapping mapping, ActionForm form, ...){
		.......do some logic....
		return mapping.findForward("success");
	}
	
	private ActionForward deleteUser(ActionMapping mapping, ActionForm form, ....){
		.......do some logic....
		return mapping.findForward("success");
	}
}

Here UserAction works the same way as a DispatchAction does....So what are the advantages/disadvantages of ActionDispatch over Action and vice versa.....One thing i can think is that, by using this method, i can hide the method calls from appearing in the url but i know it will make my struts-config big and difficult to manage in addition to that fact that i need to remember a lot of action names while i'm coding...

Any others adv/disadvantages of DispatchAction over Action and vice versa....