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Learn Scala Programming

You're reading from   Learn Scala Programming A comprehensive guide covering functional and reactive programming with Scala 2.13, Akka, and Lagom

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Product type Paperback
Published in Oct 2018
Publisher Packt
ISBN-13 9781788836302
Length 498 pages
Edition 1st Edition
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Author (1):
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Slava Schmidt Slava Schmidt
Author Profile Icon Slava Schmidt
Slava Schmidt
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Table of Contents (19) Chapters Close

Preface 1. An Introduction to Scala 2.13 FREE CHAPTER 2. Understanding Types in Scala 3. Deep Dive into Functions 4. Getting to Know Implicits and Type Classes 5. Property-Based Testing in Scala 6. Exploring Built-In Effects 7. Understanding Algebraic Structures 8. Dealing with Effects 9. Familiarizing Yourself with Basic Monads 10. A Look at Monad Transformers and Free Monad 11. An Introduction to the Akka and Actor Models 12. Building Reactive Applications with Akka Typed 13. Basics of Akka Streams 14. Project 1 - Building Microservices with Scala 15. Project 2 - Building Microservices with Lagom 16. Preparing the Environment and Running Code Samples 17. Assessments 18. Other Books You May Enjoy

Summary

Let's recap what we've learned in this chapter.

Current scaling demands are hard to meet using traditional approaches. The actor model with its shared nothing paradigm offers a solution to this problem. Akka is a library for building actor-based applications on the JVM.

Actors communicate by sending and receiving messages and change their internal state and produce side-effects in response. Each actor has an address in the form of an ActorRef, which also encapsulates ab actor's mailbox and a dispatcher. Actors are organized into hierarchies where parent actors are responsible for the supervision of their children.

Actors have a well-defined life cycle and implement a number of methods, which are called at appropriate moments during their lifetimes.

Akka provides additional modules that extend provided functionality even further.

We also looked at Akka...

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