Book Image

Spring 5.0 Microservices - Second Edition

By : Rajesh R V
Book Image

Spring 5.0 Microservices - Second Edition

By: Rajesh R V

Overview of this book

The Spring Framework is an application framework and inversion of the control container for the Java platform. The framework’s core features can be used by any Java application, but there are extensions to build web applications on top of the Java EE platform. This book will help you implement the microservice architecture in Spring Framework, Spring Boot, and Spring Cloud. Written to the latest specifications of Spring that focuses on Reactive Programming, you’ll be able to build modern, internet-scale Java applications in no time. The book starts off with guidelines to implement responsive microservices at scale. Next, you will understand how Spring Boot is used to deploy serverless autonomous services by removing the need to have a heavyweight application server. Later, you’ll learn how to go further by deploying your microservices to Docker and managing them with Mesos. By the end of the book, you will have gained more clarity on the implementation of microservices using Spring Framework and will be able to use them in internet-scale deployments through real-world examples.
Table of Contents (11 chapters)

Service-Oriented Architecture (SOA)


SOA and microservices follow similar concepts. In the Chapter 1, Demystifying Microservices, we saw that microservices are evolved from SOA and many service characteristics are common in both approaches.

However, are they the same or are they different?

Since microservices are evolved from SOA, many characteristics of microservices are similar to SOA. Let's first examine the definition of SOA.

Note

The Open Group definition of SOA (http://www.opengroup.org/soa/source-book/soa/p1.htm) is as follows:

SOA is an architectural style that supports service-orientation. Service-orientation is a way of thinking in terms of services and service-based development and the outcomes of services.

A service:

  • Is a logical representation of a repeatable business activity that has a specified outcome (e.g., check customer credit, provide weather data, consolidate drilling reports)
  • Is self-contained
  • May be composed of other services
  • Is a “black box” to consumers of the service...