Authentication with Spring Data

In the previous chapter, we covered how to leverage Spring Security's built-in JDBC support. In this chapter, we will look at the Spring Data project, and how to leverage JPA to perform authentication against a relational database. We will also explore how to perform authentication against a document database using MongoDB. This chapter's sample code is based on the Spring Security setup from Chapter 4, JDBC-Based Authentication, and has been updated to refactor out the need for SQL and to use ORM for all database interactions.

During the course of this chapter, we will cover the following topics:

  • Some of the basic concepts related to the Spring Data project
  • Utilizing Spring Data JPA to authenticate against a relational database
  • Utilizing Spring Data MongoDB to authenticate against a document database
  • How to customize Spring Security for more flexibility when dealing with Spring Data integration
  • Understanding the Spring Data project

The Spring Data project's mission is to provide a familiar and consistent Spring-based programming model for data access, while still retaining the special traits of the underlying data provider.

The following are just a few of the powerful features in this Spring Data project:

  • Powerful repository and custom object-mapping abstractions
  • Dynamic query derivation from repository method names
  • Implementation of domain base classes, providing basic properties
  • Support for transparent auditing (created and last changed)
  • The ability to integrate custom repository code
  • Easy Spring integration via Java-based configuration and custom XML namespaces
  • Advanced integration with Spring MVC controllers
  • Experimental support for cross-store persistence

This project simplifies the use of data access technologies, relational and non-relational databases, map-reduce frameworks, and cloud-based data services. This umbrella project contains many subprojects that are specific to a given database. These projects were developed by working together with many of the companies and developers that are behind these exciting technologies. There are also many community maintained modules and other related modules including JDBC Support and Apache Hadoop.

The following table describes the main modules that make up the Spring Data project:

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