Polymorphism with data controls

Question

Hi,
I have a requirement as below.
Interface ICommonProduct{
public void validate();
I have created an Common Application Module with name "CommonProductAM" . It's implementation class is CommonProductAMImpl and
the class is abstract and this class implements above interface and prodvides basic defination the method "validation"
public abstract Class CommonProductAMImpl implements ICommonProduct {
public void validate(){
System.out.println(" abstract class validate method of common product AM");
I have created another AM "XXXProductAM" and implemntation class is XXXProductAM and extends abstract AM class CommonProductAMImpl
public Class XXXProductAM extends CommonProductAMImpl {
public void validate(){
super.validate();
System.out.println(" XXXProductAM class validate method");
I have created another AM "YYYProductAM" and implemntation class is YYProductAM and extends abstract AM class CommonProductAMImpl
public Class YYYProductAM extends CommonProductAMImpl {
public void validate(){
super.validate();
System.out.println(" YYYProductAM class validate method");
From UI page of jspx , i want to add validate() method as a method action . I would like to add the validate method of
CommonProductAMImpl in bindings. but based on some attribute set in page scope / task flow as "XXX" or "YYY" ,
I would like to call respective AM validate method. (simply polymorphism)
(eg. if(attribute=="xxx"){
CommonProductAMImpl ob = new XXXProductAM();
ob.validate();
}else if(attribute=="YYY"){
CommonProductAMImpl ob = new YYYProductAM();
ob.validate();
How should i proceed for this?
Thanks,
Sulakshana.

Answer 1

Hi,
you could use a router for this..
I mean, you can expose both methods to the client interface and drop them to your task flow. Then with a router you would deside what to call.
Each method could then return to the same page for instance..
My question is: Are you sure that this approach is what you need?
You can have an hierarchy of AM ofcourse. But maybe this validation case can be achieved in the model layer with less effort..
Regards,
Dimitris.