Book Image

Building Microservices with Spring

By : Dinesh Rajput, Rajesh R V
Book Image

Building Microservices with Spring

By: Dinesh Rajput, Rajesh R V

Overview of this book

Getting Started with Spring Microservices begins with an overview of the Spring Framework 5.0, its design patterns, and its guidelines that enable you to implement responsive microservices at scale. You will learn how to use GoF patterns in application design. You will understand the dependency injection pattern, which is the main principle behind the decoupling process of the Spring Framework and makes it easier to manage your code. Then, you will learn how to use proxy patterns in aspect-oriented programming and remoting. Moving on, you will understand the JDBC template patterns and their use in abstracting database access. After understanding the basics, you will move on to more advanced topics, such as reactive streams and concurrency. Written to the latest specifications of Spring that focuses on Reactive Programming, the Learning Path teaches you how to build modern, internet-scale Java applications in no time. Next, you will understand how Spring Boot is used to deploying serverless autonomous services by removing the need to have a heavyweight application server. You’ll also explore ways to deploy your microservices to Docker and managing them with Mesos. By the end of this Learning Path, you will have the clarity and confidence for implementing microservices using Spring Framework. This Learning Path includes content from the following Packt products: • Spring 5 Microservices by Rajesh R V • Spring 5 Design Patterns by Dinesh Rajput
Table of Contents (22 chapters)
Title Page
About Packt

The best approach to designing your data-access

In previous chapters, you have seen that one of Spring's goals is to allow you to develop applications by following one of the OOPs principles of coding to interfaces. Any enterprise application needs to read data and write data to any kind of database, and to meet this requirement, we have to write the persistence logic. Spring allows you to avoid the scattering of persistence logic across all the modules in your application. For this, we can create a different component for data access and persistence logic, and this component is known as a data access object (DAO). Let's see, in the following diagram, the best approach to create modules in layered applications:

As you can see in the preceding diagram, for a better approach, many enterprise applications consist of the following three logical layers:

  • The service layer (or application layer): This layer of the application exposes high-level application functions like use-cases and business logic...