Refactoring into Chain of Responsibility from Legacy Code

Refactoring into Chain of Responsibility from Legacy Code, available at $39.99, has an average rating of 4.65, with 15 lectures, based on 88 reviews, and has 594 subscribers.

You will learn about Refactoring Clean Code Design Patterns SOLID Principles Working with Legacy Code This course is ideal for individuals who are Software Developer or Software Architect or IT Team Leader It is particularly useful for Software Developer or Software Architect or IT Team Leader.

Enroll now: Refactoring into Chain of Responsibility from Legacy Code

Summary

Title: Refactoring into Chain of Responsibility from Legacy Code

Price: $39.99

Average Rating: 4.65

Number of Lectures: 15

Number of Published Lectures: 15

Number of Curriculum Items: 15

Number of Published Curriculum Objects: 15

Original Price: $19.99

Quality Status: approved

Status: Live

What You Will Learn

Refactoring
Clean Code
Design Patterns
SOLID Principles
Working with Legacy Code

Who Should Attend

Software Developer
Software Architect
IT Team Leader

Target Audiences

Software Developer
Software Architect
IT Team Leader

This is the second module of series dedicated to turning Legacy Code into Clean Code

Although Refactoring to Chain of Responsibility is not mentioned in the core refactoring books (“Refactoring” & “Refactoring to Patterns”) the techniques described in these books allow to create a plan for such a refactoring journey.

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 particitants 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 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

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.

Course Curriculum

Chapter 1: Introduction to the course

Lecture 1: Why this couse?

Lecture 2: Refactoring facilitates earning money

Lecture 3: Chain of Responsibility Pattern

Chapter 2: First refactoring activities

Lecture 1: Business domain explained

Lecture 2: Java sources explained

Lecture 3: Duplicated code extracted into first methods

Lecture 4: First methods made cohesive

Chapter 3: FInalize building blocks of the core logic

Lecture 1: Third method extracted and made cohesive

Lecture 2: Fourth of the core methods extracted

Lecture 3: Fourth method made generic and reusable

Chapter 4: Single Responsibility Principle – Classes

Lecture 1: Composed Methods

Lecture 2: Single Responsibility Principle Classes

Lecture 3: Fasten Classes into a Chain of Responsibility

Chapter 5: Summary

Lecture 1: Recap of Refactoring Pyramid

Lecture 2: Homework

Instructors

Włodek Krakowski
Technical & Organizational Trainer

Rating Distribution

1 stars: 1 votes
2 stars: 1 votes
3 stars: 5 votes
4 stars: 27 votes
5 stars: 54 votes

Frequently Asked Questions

How long do I have access to the course materials?

You can view and review the lecture materials indefinitely, like an on-demand channel.

Can I take my courses with me wherever I go?

Definitely! If you have an internet connection, courses on Udemy are available on any device at any time. If you don’t have an internet connection, some instructors also let their students download course lectures. That’s up to the instructor though, so make sure you get on their good side!

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