🎉 New Course Alert - Mastering Spring Framework Fundamentals - A Pragmatic approach 🎉
Courses
Mastering Spring Framework Fundamentals
🚀 Module 2 - Building a standard java Application
What are we building

What are we building?

Product Management Application - Requirement Document

Disclaimer

💡

We are intentionally keeping this application simple as we aim to highlight the challenges and limitations developers face when building applications using standard Java. This will help illustrate why adopting the Spring Framework is a more efficient and why Spring framework is so popular.

1. Introduction

The Product Management Application is designed to manage the lifecycle of products within a system. The application allows users to create, retrieve, update, and delete products while also providing the ability to list all available products.

2. Functional Requirements

2.1. Product Entity

The system manage products with the following attributes:

  • ID: A unique identifier for each product (String).
  • Name: The name of the product (String).
  • Price: The price of the product (double).
  • Description: A brief description of the product (String).

2.2. Product Management Services

The following services will be provided to manage products:

  1. Add Product
    • Description: Allows adding a new product to the system.
    • Input: A Product object containing the product details (ID, Name, Price, Description).
    • Output: Confirmation of successful addition.
    • Constraints: The product ID must be unique.
  2. Get Product by ID
    • Description: Fetches a product based on its unique ID.
    • Input: A product ID (String).
    • Output: The Product object corresponding to the given ID.
    • Constraints: The product must exist in the system; otherwise, an appropriate error message should be returned.
  3. Update Product
    • Description: Updates the details of an existing product.
    • Input: A Product object containing the updated product details.
    • Output: Confirmation of successful update.
    • Constraints: The product must exist in the system; otherwise, an appropriate error message should be returned.
  4. Delete Product
    • Description: Removes a product from the system based on its ID.
    • Input: A product ID (String).
    • Output: Confirmation of successful deletion.
    • Constraints: The product must exist in the system; otherwise, an appropriate error message should be returned.
  5. Get All Products
    • Description: Retrieves a list of all products in the system.
    • Output: A list of Product objects.
    • Constraints: If no products are available, the list should be empty.

4 Architectural Pattern

  • Layered architecture with:
    • Service Layer: Contains business logic and handles operations on product data.
    • Repository Layer: Manages data persistence and interaction with the database.
🚀 Module 2 - Building a standard java ApplicationWhy You Should Use a Layered Architecture