Book Image

Reactive Programming With Java 9

By : Tejaswini Mandar Jog
Book Image

Reactive Programming With Java 9

By: Tejaswini Mandar Jog

Overview of this book

<p>Reactive programming is an asynchronous programming model that helps you tackle the essential complexity that comes with writing such applications.</p> <p>Using Reactive programming to start building applications is not immediately intuitive to a developer who has been writing programs in the imperative paradigm. To tackle the essential complexity, Reactive programming uses declarative and functional paradigms to build programs. This book sets out to make the paradigm shift easy.</p> <p>This book begins by explaining what Reactive programming is, the Reactive manifesto, and the Reactive Streams specifi cation. It uses Java 9 to introduce the declarative and functional paradigm, which is necessary to write programs in the Reactive style. It explains Java 9’s Flow API, an adoption of the Reactive Streams specifi cation. From this point on, it focuses on RxJava 2.0, covering topics such as creating, transforming,fi ltering, combining, and testing Observables. It discusses how to use Java’s popular framework, Spring, to build event-driven, Reactive applications. You will also learn how to implement resiliency patterns using Hystrix. By the end, you will be fully equipped with the tools and techniques needed to implement robust, event-driven, Reactive applications.</p>
Table of Contents (12 chapters)
Free Chapter
1
Introduction to Reactive Programming

Summary

We are interested in understanding Stream programming. Yet, we haven't discussed anything regarding reactive programming. Though we haven't directly discussed it, this chapter gave us the orientation about different terms and concepts of reactive programming which we will be using throughout the book.

In this chapter, we discussed about changes in the development approach with programming paradigm to match the market requirements. We discussed about the imperative programming, its role in the application development, and its drawbacks. We then moved on to discuss the procedural programming and its approach in development. Our main motive was to discuss about functional programming and the concepts associated with it. We discussed about higher-order functions, function composition, function as value type, function laziness, operator fusion. We discussed these...