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Beginning Java EE 6 Platform with GlassFish 3

Автор(ы): Antonio Goncalves
Язык: английский
Формат файла: pdf
Год выхода: 2009
Страниц: 514
Размер: 10.54 MB


Java Enterprise Edition appeared at the end of the 1990s and brought to the Java language a robust software platform for enterprise development. Challenged at each new version, badly understood or misused, overengineered, and competing with open source frameworks, J2EE was seen as a heavyweight technology. Java EE benefited from these criticisms to improve and is today focused on simplicity.

If you are part of the group of people who still think that “EJBs are bad, EJBs are evil,” read this book, and you’ll change your mind. EJBs (Enterprise Java Beans) are great, as is the entire Java EE 6 technology stack. If, on the contrary, you are a Java EE adopter, you will see in this book how the platform has found equilibrium, through its ease of development in all the stacks, new specifications, lighter EJB component model, profiles, and pruning. If you are a beginner in Java EE, this is also the right book: it covers the most important specifications in a very understandable manner and is illustrated with a lot of code and diagrams to make it easier to follow.

Open standards are collectively one of the main strengths of Java EE. More than ever, an application written with JPA, EJB, JSF, JMS, JSF, SOAP web services, or RESTful web services is portable across application servers. Open source is another of Java EE’s strengths. As you’ll see in this book, most of the Java EE 6 Reference Implementations use open source licensing (GlassFish, EclipseLink, Mojarra, OpenMQ, Metro, and Jersey).

This book explores the innovations of this new version, and examines the various specifications and how to assemble them to develop applications. Java EE 6 consists of nearly 30 specifications and is an important milestone for the enterprise layer (EJB 3.1, JPA 2.0), for the web tier (Servlet 3.0, JSF 2.0), and for interoperability (SOAP web services and RESTful services). This book covers a broad part of the Java EE 6 specifications and uses the JDK 1.6 and some well-known design patterns, as well as the GlassFish application server, the Derby database, JUnit, and Maven. It is abundantly illustrated with UML diagrams, Java code, and screenshots.

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