livelessons-data-jpa

Lesson 4: Working With Data (Relational Database with JPA)

Introduction

This example shows how you can access a classic relational database using Spring Data and JPA.

Building and running the sample

Use the following commands to build run the application:

$ mvn clean package
$ java -jar target/livelessons-data-jpa-1.0.0-SNAPSHOT.jar

Understanding the code

This demo uses an embedded database to store data. The Car class provides the basic entity and the CarRepository interface provides access. Notice that the findByMakeIgnoringCase method is all that is needed to create the OQL query.

When the application starts mock data is added and then a single query is executed.