Kurzbeschreibung
Enterprise JavaBeans 3.0 (EJB 3.0) is a vital component of the new Java Enterprise Edition 5 platform (previously called J2EE). They are used for the development and deployment of component-based enterprise business applications. Ever since its first release, EJB has been the subject of much media attention and no little controversy. EJBs represent a sophisticated and powerful technology and EJB-based applications can support high numbers of transactions and users, with maximum security. However, previous incarnations of EJB have come to be regarded by many as an overly complex technology that can lead to costly and time-consuming solutions that are difficult to build, implement and maintain. EJB 3 is set to change all that. It has made huge advances in ease of development, and its drastically simplified programming model has been widely acclaimed and embraced. At the heart of the new EJB 3 spec is a massive reduction in the complexity of the EJB persistence and object-relational mapping mechanisms (essentially the entity beans portion of the specification). This book provides the definitive guide to the EJB 3 persistence technology. The lead author, Mike Keith, is a co-lead on the EJB 3.0 expert group (under JSR 220) and provides unparalleled insight and expertise on this topic. He and his co-authors dissect and explain the new EJB 3 persistence specification in full detail, describing how to use this sophisticated technology to its full potential. Assuming a basic knowledge of Java, SQL, JDBC and some J2EE experience, this book teaches you EJB 3 persistence from the ground up. It provides the reader with a complete and in-depth understanding of the EJB 3.0 Persistence API and how to use it in practice.
Synopsis
EJB 3.0 sets a new precedent. It has made huge advances in ease of development, and its drastically simplified programming model has been widely acclaimed. This book is the definitive guide to EJB 3.0 persistence technology. The authors provide unparalleled insight and expertise on this topic, fully examining and explaining EJB 3.0 persistence specification. They describe how to use this sophisticated technology to its full potential, including The new EntityManager API The new features of EJB Query Language (EJB QL) Basic and advanced object-relational mapping Advanced topics like concurrency, locking, inheritance, and polymorphism Assuming a basic knowledge of Java, SQL, JDBC, and some J2EE experience, this book teaches you EJB 3 persistence from the ground up. After reading it, you will have an in-depth understanding of the EJB 3.0 Persistence API and how to use it in your applications.
Über den Autor
Mike Keith has been involved in EJB since its initial release. He is currently co-spec lead on EJB 3.0 (JSR 220) and is an active contributor to the Java EE 5 expert group (JSR 244). He is an architect for Oracle’s TopLink and OC4J Container products and has recently been engaged in architecting Oracle’s open source EJB 3.0 implementation. He holds a M.Sc. in Computing from Carleton University and has over 15 years of teaching, research and practical experience in object persistence. He has designed and implemented numerous persistent object systems for Fortune 100 corporations He has written numerous papers and articles and is a frequent presenter at JavaOne and other international conferences. Jason Haley is a senior engineer at Oracle and a reviewer of the EJB 3.0 specification. He has a B.Sc. in Computing from Carleton University and has been working with the EJB internals and Java/J2EE applications for over 6 years. He has done consulting and training but spent much of his time designing and implementing EJB Container infrastructure both on the session side and the persistence side. He has extensive experience with the inner workings of BEA WLS and Oracle Application Server, and has devised multiple session\persistent manager interfaces. He was a lead engineer for Oracle's EJB 3.0 offering. Merrick Schincariol is a senior engineer at Oracle and a reviewer of the EJB 3.0 specification. He has a B.Sc.in Computer Science from Lakehead University and has over 6 years experience in the industry. He spent some time consulting in the pre-Java enterprise and business intelligence field before moving on to write Java/J2EE applications. His experience with large-scale systems and data warehouse design gave him a mature and practiced perspective on enterprise software that later propelled him into doing EJB Container implementation work. He was a lead engineer for Oracle's EJB 3.0 offering.
