Raghu R. Kodali is consulting product manager and SOA evangelist for Oracle Application Server. He leads next-generation SOA initiatives and J2EE feature sets for Oracle Application Server, with particular expertise in EJB, J2EE deployment, Web services, and BPEL. He holds a Masters degree in Computer Science and is a frequent speaker at technology conferences. Raghu is also a technical committee member for the OASIS SOA Blueprints specification, and a board member of Web Services SIG in OAUG. He maintains an active blog at Loosely Coupled Corner (www.jroller.com/page/raghukodali).
Much of the work surrounding the design and development of enterprise applications involves decisions about how to coordinate the flow of persistent data. This includes when and where to cache data, when to apply it to a persistent store (typically the database), how to resolve simulta...Jan. 28, 2007 03:00 PM EST Reads: 40,162 Replies: 1
The persistence model introduced in EJB 3.0 as a replacement for entity beans is known as the Java Persistence API (JPA). The JPA borrows from both proprietary and open source models, such as Oracle TopLink, Hibernate, Spring, and other frameworks, which have gained traction as popular...
Today's IT organizations have tens of applications and services that perform some well-defined tasks such as inventory, billing, expense reporting, and order entry. With the evolution of Internet and e-business, enterprises have started to think about how different applications in a di...
We've all heard about the simplicity and power of the EJB 3.0 specification. And because this has proven to be true, we can't help but think that performance must be rather poor. After all, all that simplicity must come at a price.
Over the past few years, the Enterprise JavaBeans (EJB) specification has evolved significantly. In the early days of EJB, application developers faced a burden of overwhelming complexity: they had to manage several component interfaces, deployment descriptors, and unnecessary callback...
