Sams Teach Yourself EJB in 21 Days

Day 18. Building Bean-Managed Transaction Beans

On Day 17, “Building Container-Managed Transaction Beans,” we covered EJBs with container-managed transactions (CMTs). Today we'll closely examine the other type of transaction demarcation, the bean-managed transaction (BMT), which is the programmatic approach of performing transaction demarcation on the Java 2 Enterprise Edition (J2EE) platform. This will be illustrated through an example of how to develop, deploy, and run an EJB with bean-managed transaction demarcation. We'll explore the types of beans that can perform bean-managed transactions and the transaction semantics of each method that we use. We'll discuss the situations in which you can use this type of transaction and any restrictions ...