Interface Segregation with complete code example | Low level design playlist | SOLID
This video, titled "LLD 05: SOLID Principles | Interface Segregation | Machine coding interview preparation," is a part of a Low-Level Design (LLD) series by the channel tenxbackend. It focuses on explaining the Interface Segregation Principle, one of the five SOLID principles of object-oriented design, specifically in the context of preparing for machine coding interviews.
Video Description
The video provides a comprehensive look at the Interface Segregation Principle (ISP). The core message is that "no client should be forced to depend on methods it does not use." The instructor explains how bulky interfaces (also known as "fat" or "polluted" interfaces) can lead to unnecessary dependencies and side effects in code. By breaking down large interfaces into smaller, more specific ones, developers can ensure that implementing classes only need to concern themselves with relevant methods. This leads to more modular, maintainable, and cleaner code, which is a key evaluation metric in software engineering interviews.
Key Chapters and Topics
0:00 Introduction to Interface Segregation
6:08 Solution to the violation
9:09 Communication LLD exercise
15:30 A new requirement, Breaking interfaces
18:32 Solution by smaller interfaces
Github Link for code - https://github.com/tenxbackend/oops-p...