You are reviewing an on-line shopping application and find a lost sink method called retrieveOrderf...) that is provided by a third party shopping framework. This method accepts order number and in…

You are reviewing an on-line shopping application and find a lost sink method called retrieveOrderf...) that is provided by a third party shopping framework. This method accepts order number and in turn provides all information regarding that order such as items ordered, shipping and billing address, payment type, etc . Which type of custom rule should you create for this method?