Book Image

Scala Design Patterns - Second Edition

By : Ivan Nikolov
Book Image

Scala Design Patterns - Second Edition

By: Ivan Nikolov

Overview of this book

Design patterns make developers’ 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’ll learn about the various features of Scala and will 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 and latest features of Scala while using practical real-world examples. We will be learning about IDE’s and Aspect Oriented Programming. We will be looking into different components in Scala. We will also cover the popular "Gang of Four" design patterns and show you how to incorporate functional patterns effectively. The book ends with a practical example that demonstrates how the presented material can be combined in real-life applications. You’ll learn the necessary concepts to build enterprise-grade applications. By the end of this book, you’ll have enough knowledge and understanding to quickly assess problems and come up with elegant solutions.
Table of Contents (14 chapters)

Summary

This was the first chapter of this book that focused on some specific design patterns. We looked at the following creational design patterns—factory method, abstract factory, lazy initialization, singleton, builder, and prototype. Wherever relevant, we presented a diagram that visually showed class relationships. Also, we gave typical examples and went through the possible pitfalls and recommendations about when to use them.

In real-life software engineering, design patterns are usually combined together rather than being used in an isolated manner. Some examples include a prototype that is being supplied by a singleton instance, abstract factories that can store different prototypes and supply copies when objects are created, factories that can use builders to create instances, and so on. In some cases, design patterns could be interchangeable depending on the...