Book Image

Learning Concurrent Programming in Scala - Second Edition

By : Aleksandar Prokopec
Book Image

Learning Concurrent Programming in Scala - Second Edition

By: Aleksandar Prokopec

Overview of this book

Scala is a modern, multiparadigm programming language designed to express common programming patterns in a concise, elegant, and type-safe way. Scala smoothly integrates the features of object-oriented and functional languages. In this second edition, you will find updated coverage of the Scala 2.12 platform. The Scala 2.12 series targets Java 8 and requires it for execution. The book starts by introducing you to the foundations of concurrent programming on the JVM, outlining the basics of the Java Memory Model, and then shows some of the classic building blocks of concurrency, such as the atomic variables, thread pools, and concurrent data structures, along with the caveats of traditional concurrency. The book then walks you through different high-level concurrency abstractions, each tailored toward a specific class of programming tasks, while touching on the latest advancements of async programming capabilities of Scala. It also covers some useful patterns and idioms to use with the techniques described. Finally, the book presents an overview of when to use which concurrency library and demonstrates how they all work together, and then presents new exciting approaches to building concurrent and distributed systems. Who this book is written for If you are a Scala programmer with no prior knowledge of concurrent programming, or seeking to broaden your existing knowledge about concurrency, this book is for you. Basic knowledge of the Scala programming language will be helpful.
Table of Contents (19 chapters)
Learning Concurrent Programming in Scala - Second Edition
About the Author
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In this chapter, we learned what actors are and how to use them to build concurrent programs. Using the Akka actor framework, we studied how to create actors, organize them into hierarchies, manage their lifecycle, and recover them from errors. We examined important patterns in actor communication and learned how to model actor behavior. Finally, we saw how the actor model can ensure location transparency, and serve as a powerful tool to seamlessly build distributed systems.

Still, there are many Akka features that we omitted in this chapter. Akka comes with detailed online documentation, which is one of the best sources of information on Akka. To obtain an in-depth understanding of distributed programming, we recommend the books Distributed Algorithms, Nancy A. Lynch, published by Elsevier and Introduction to Reliable and Secure Distributed Programming, Christian Cachin, Rachid Guerraoui, Luis Rodrigues, published by Springer.

In the following chapter, we will summarize the different...