Using Chain of Responsibility pattern in Java project

Chain of Responsibility(behavioral design pattern) help you pass requests along a chain of handlers. Each handler decides either to process the request or to pass it to the next handler in the chain. In a company, device purchasing is important. It needs the approval from purchasing officer. The approval route for mortgage applications is from purchasing manager to senior manager then to director, where approval limits are: Managers - 0 to 30k Senior Managers - 30k to 50k Director - anything over 50k Implementation steps: 1. Create a Purchasing class, it contains amount property 2. Create an Approver abstract class, it contains setNextApprover(approver) and Approve(purchasing) method 3. Create 3 classes: Manager, SeniorManager and Director that extend Approver class