J2EE design patterns complete- requirements through implementation! Suns own J2EE design "best practices" - plus techniques for avoiding the most common pitfalls of J2EE development. Covers JSP, servlets, EJB, JDBC, Java Messaging Service (JMS), and more. Start-to-finish case study shows how to use the books J2EE design patterns. Sun Microsystems Java 2 Platform, Enterprise Edition (J2EE) has become the platform of choice for Web-centric distributed enterprise application development. Expert consultants from the Sun Java Center have been helping customers build J2EE-based solutions since the earliest days of the technology, focusing primarily on up-front design and architecture. Along the way, theyve identified powerful J2EE design patterns that lead to applications with superior performance, scalability, and robustness. This book brings those design patterns together, sharing Suns best practices for development with Java Server Pages (JSP), Servlets, EJB, and other J2EE technologies. It presents a complete catalog of J2EE patterns encapsulating proven and recommended designs for common J2EE-related problems, organized into presentation tier, business tier and integration tier solutions. Presentation tier patterns describe solutions involving JSP and servlets; business tier patterns describe solutions involving EJB; and integration tier patterns describe solutions involving JDBC and Java Messaging Service (JMS). The book also identifies bad practices to be avoided. Finally, it presents an end-to-end multi-tier case study covering every stage of enterprise development. John Crupi is Chief Java Architect for Suns Global .COM Consulting, Sun Java Center. He has 15+ years experience in distributed object computing, and specializes in creating reusable, scalable architectures for J2EE and B2B based systems. Dan Malks is an Enterprise Java Architect for Suns Global .COM Consulting with over 14 years of development experience. He is contributing author of Java Server Programming J2EE Edition. Deepak Alur is Enterprise Java Architect for Suns .COM Consulting, specializing in designing and developing Java/J2EE solutions. He holds several patents in the area of B2B transactions over the Internet