04 - Spring Boot with JPA and H2

Extra information regarding persistence in JPA

Introduction

This entry extends the material explained in the previous post about persisting entities in H2 using JPA and Spring Boot. Here we’ll talk about persisting classes with inheritance as well as coupling with other classes.

Types of inheritance strategies in JPA

Thorben Janssen does a very good job at explaining the differences between each JPA inheritance strategy in this article.

Also, check this Baeldung article defining some tips on how to map an inheritance hierarchy to a single table.

Table per Class strategy

Check the following video for a quick example:

Single Table strategy

Check the following video for a quick example: