This is a fast-paced tutorial for both novice and experienced java developers. It will help you learn ejb 3 and the jpa quickly and easily. This comprehensive, entirely new ejb 3 book starts with a tour of the ejb 3 landscape. It then moves quickly into core topics like building business logic with session and message-driven beans. You'll find four full chapters on the jpa along with practical code samples, design patterns, and performance tuning tips. · overview of the ejb landscape · building business logic with ejb · diving into the java persistence api (jpa) · putting ejb 3 into action · migration and interoperability issues