Java Persistence with Spring Data and Hibernate

11 Transactions and concurrency

This chapter covers

• Defining database and system transaction essentials
• Controlling concurrent access with Hibernate and JPA
• Using non-transactional data access
• Managing transactions with Spring and Spring Data

In this chapter, we’ll finally talk about transactions: how we create and control concurrent units of work in an application. A unit of work is an atomic group of operations, and transactions allow us to set unit of work boundaries and help us isolate one unit of work from another. In a multiuser application, we may also be processing these units of work concurrently.

To handle concurrency, we’ll first focus on units of work at the lowest level: database and system transactions. You’ll learn the APIs for ...