Spring 5.0 By Example

Before starting the service layer

Our application needs to have a persistence storage where our records can be loaded, even if the application goes down. We will create the fake implementation for our repositories.   In Chapter 3, Persistence with Spring Data and Reactive Fashion, we will introduce the Spring Data projects which help developers create amazing repositories with a fantastic DSL. For now, we will create some Spring beans to store our elements in memory, let's do that.