Writing a product service

For the sake of simplicity, our product service has two functions:

• List<int> getProducts(int categoryId)
• Product getProduct(int prodId)

The intent of the two methods is quite clear. The first returns a list of product IDs given a category ID, and the second returns product details (as an object) given a product ID.

Creating a Maven project

Open your IDE (Eclipse Neon or other) and then create a new Maven project as follows:

1. Right-click on Package Explorer and select New and Project..., as shown in the following screenshot:

2. Select Maven Project:

3. In the next window of the wizard, choose Create a simple project.

 

4. The next dialog will ask for many parameters. Of these...