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  • Book Overview & Buying Scala Design Patterns
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Scala Design Patterns

Scala Design Patterns

By : Ivan Nikolov
4.2 (5)
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Scala Design Patterns

Scala Design Patterns

4.2 (5)
By: Ivan Nikolov

Overview of this book

Scala has become increasingly popular in many different IT sectors. The language is exceptionally feature-rich which helps developers write less code and get faster results. Design patterns make developer’s lives easier by helping them write great software that is easy to maintain, runs efficiently and is valuable to the company or people concerned. You will learn about the various features of Scala and be able to apply well-known, industry-proven design patterns in your work. The book starts off by focusing on some of the most interesting features of Scala while using practical real-world examples. We will also cover the popular "Gang of Four" design patterns and show you how to incorporate functional patterns effectively. By the end of this book, you will have enough knowledge and understanding to quickly assess problems and come up with elegant solutions.
Table of Contents (14 chapters)
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13
Index

Chapter 4. Abstract and Self Types

Designing and writing high quality code in software engineering is important in order to have applications that are easy to extend and maintain. This activity requires the domain to be well known, correctly understood by a developer, and the requirements for the application to be well defined. If any of these is absent, then writing good programs becomes quite challenging.

Many times, engineers model the "world" using some abstractions. This helps with code extendibility and maintainability and removes duplication, which in many cases could be a reason for bugs. Good code, generally, will consist of multiple small components, which depend on and interact with each other. There are different approaches that help to achieve abstraction and interaction. We will look into the following topics in this chapter:

  • Abstract types
  • Polymorphism
  • Self types

The topics that we will cover here will be really useful when we start looking into some of the...

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