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

In this chapter, we learned about structural design patterns and specifically about the following—adapter, decorator, bridge, composite, facade, flyweight, and proxy. We went through the details of each of them and showed a class diagram as well as a code example for each. Because of the richness of Scala, sometimes there can be a better implementation using some of the nice features of Scala, but sometimes the design pattern just looks the same as it would in a language such as Java.

In many cases, the structural design patterns seem quite similar. This, however, shouldn't confuse you as they still have different purposes. Some examples include:

  • Adapter versus Bridge: Adapter is used to convert one interface to another when we do not have access to the code. Bridge is used while designing software and it decouples abstraction from implementation for easier...