October 2006
Intermediate to advanced
880 pages
22h 11m
English
Content preview from Java Persistence with Hibernate
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Chapter 10. Transactions and concurrency
In this chapter, we finally talk about transactions and how you create and control units of work in a application. We'll show you how transactions work at the lowest level (the database) and how you work with transactions in an application that is based on native Hibernate, on Java Persistence, and with or without Enterprise JavaBeans.
Transactions allow you to set the boundaries of a unit of work: an atomic group of operations. They also help you isolate one unit of work from another unit of work in a multiuser application. We talk about concurrency and how you can control concurrent data access in your application with pessimistic and optimistic strategies.
Finally, we look at nontransactional data ...
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