Pyramid of Refactoring (Java) - Clean Code into Chain
What you'll learn
- Refactoring
- Clean Code
- Design Patterns
- SOLID Principles
- Working with Legacy Code
Course content
Introduction to the course3 lectures • 13min
- Why this couse?Preview05:19
- Refactoring facilitates earning money04:29
- Chain of Responsibility PatternPreview02:45
First refactoring activities4 lectures • 36min
FInalize building blocks of the core logic3 lectures • 34min
Single Responsibility Principle - Classes3 lectures • 28min
Summary2 lectures • 7min
Requirements
- Java 1.8+
- IntelliJ Community Edition
- JUnit
- Maven
Description
This is the second module of series called "Pyramid of Refactoring" dedicated to achieving Clean Code.
The goal of the course is to disentangle the codebase from a set of deeply nested conditional if/else statements. It is a very common case - and if it is left for a long time - then it leads to a very complex legacy code after subsequent code extensions.
We use refactoring techniques and perform all the changes live. The partititants download the source code and performs all the changes together with the trainer - step by step. In this sample we make use of Chain of Responsibility Design Pattern as goal of our refactoring journey.
The course ends up with Homework, where the participants can experience the difference between implementing additional requirements within Clean Code and within Legacy Code. This is the difference between skipping and applying Preparatory Refactoring.
The journey into Chain of Responsibility allows the attendees to practice code transformations like :
- Merge If Statements
- Merge Nested-If Statements
- Extract Methods
- Replace Temp with Query
- Move Methods
- Inline Methods
- Extract Class / Extract Delegate
- Extract Interface
- Rename Methods & Variables
Who this course is for:
- Software Developer
- Software Architect
- IT Team Leader
Instructor
![Włodek Krakowski](data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"%3E%3C/svg%3E){kind=avatar}
- 4.8 Instructor Rating
- 54 Reviews
- 223 Students
- 2 Courses
My name is Włodek Krakowski. I am an independent technical trainer, IT leader and also a developer - to sharpen my skills continuously.
My main interest is taking care of delivering valued software from different perspectives. These are how people take care of quality of code, how people work together towards providing business value, how people help to grow each other and how people are managed.
I deliver Clean Code & Refactoring Courses.