Book Image

Spring 5.0 Cookbook

By : Sherwin John C. Tragura
Book Image

Spring 5.0 Cookbook

By: Sherwin John C. Tragura

Overview of this book

The Spring framework has been the go-to framework for Java developers for quite some time. It enhances modularity, provides more readable code, and enables the developer to focus on developing the application while the underlying framework takes care of transaction APIs, remote APIs, JMX APIs, and JMS APIs. The upcoming version of the Spring Framework has a lot to offer, above and beyond the platform upgrade to Java 9, and this book will show you all you need to know to overcome common to advanced problems you might face. Each recipe will showcase some old and new issues and solutions, right from configuring Spring 5.0 container to testing its components. Most importantly, the book will highlight concurrent processes, asynchronous MVC and reactive programming using Reactor Core APIs. Aside from the core components, this book will also include integration of third-party technologies that are mostly needed in building enterprise applications. By the end of the book, the reader will not only be well versed with the essential concepts of Spring, but will also have mastered its latest features in a solution-oriented manner.
Table of Contents (20 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Applying the observer design pattern using Reactive Streams


Reactive programming started as a Reactive Streams model initially implemented in the .NET Framework but popularized by Pivotal and Netflix. This programming paradigm is supported by a specification used by many developers to extend and implement libraries that can solve Reactive-related problems. JavaScript, Python, and Java are some of the languages that have already shown their support by including this specification in their platforms. Based on the Reactive Stream JVM specification, Java 1.8 and above can now support Reactive programming. Java 1.9, especially, has a dedicated Flow API (java.util.concurrent.Flow) which consists of all the Reactive Streams API written within the context of Java language specification.

This chapter will introduce Reactive programming concepts and will provide recipes on how this paradigm started using the popular observer design pattern.

Getting started

The Reactive model was conceived by the Reactive...