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)

Other factory design patterns

There are some different variations of the factory design patterns. In all cases though, the purpose is generally the same—hide creation complexity. In the following subsections, we will briefly mention two of the other factory design patterns—static factory and simple factory.

The static factory

The static factory could be represented as a static method, which is a part of the base class. It is called to create concrete instances, which extend the base class. One of the biggest drawbacks here, however, is that if another extension of the base class is added, the base class (because of the static method) also has to be edited. Let's show a simple example from the world of animals...