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
Copyright
About Packt
Contributors
Preface
Index

Configuring the cache storage


Spring's cache abstraction provides a lot of storage integration. Spring provides CacheManager for each memory storage. You can just configure CacheManager with the application. Then the CacheManager is responsible for controlling and managing the Caches. Let's explore how to set up the CacheManager in an application.

Setting up the CacheManager

You must specify a cache manager in the application for storage, and some cache provider given to the CacheManager, or you can write your own CacheManager. Spring provides several cache managers in the org.springframework.cache package, for example, ConcurrentMapCacheManager, which creates a ConcurrentHashMap for each cache storage unit.

    @Bean 
    public CacheManager cacheManager() { 
      CacheManager cacheManager = new ConcurrentMapCacheManager(); 
      return cacheManager; 
    }

SimpleCacheManager, ConcurrentMapCacheManager, and others are cache managers of the Spring Framework's cache abstraction. But Spring...