From the course: Java Design Patterns: Behavioral Part 1
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Challenge: The Command pattern - Java Tutorial
From the course: Java Design Patterns: Behavioral Part 1
Challenge: The Command pattern
(techno beats) - [Instructor] Let's have a look at our next exercise. In this one, we've got a sales order app, and the exercise is going to be to complete the remaining functionality using the command pattern, so, let's take a look at the app. This has a class called sales order clients, so this class has a main method and in here there are two order handler objects. One for placing orders, and the other for returning orders. If I look inside, the order handler class, I can see it has a single method called in book, which doesn't do anything at the moment. There is also a third class called jackets, this has two methods, place order and the return order. The functionality for ordering and returning a jacket is in here. If get back to the sales order clients, I can see that there is a field of typed jackets in here. This exercise is to implement command pattern, so that when the involved method is called on the order…
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