Core J2EE Patterns: Best Practices and Design Strategies
Over the last few years, Java 2 Platform, Enterprise Edition (J2EE) technology has emerged and matured as a standard platform for building enterprise applications. While the platform has matured into a solid offering for developing and deploying enterprise applications, it does offer its challenges. As developers, often we confuse learning the technology with learning to design with the technology. In this book, senior architects from the Sun Java Center, Sun's Java consulting organization share with the reader their cumulative design experience with and expertise on J2EE technology.
The primary focus of the book is on patterns, best practices, design strategies, and proven solutions using the key J2EE technologies including JavaServer Pages (JSP), Servlets, Enterprise Java Beans (EJB), and Java Message Service (J.M.S) API. Other ancillary technologies like JDBC and JNDI are also discussed as relevant to their usage in these patterns. The J2EE Patterns catalog with 16 patterns and numerous strategies is presented to document and promote best practices for these technologies.
In addition to the patterns and strategies, the book offers the following:
Core J2EE Patterns delivers:
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Data Access Object Strategy The Session Facade can directly use one or more
DAOs to represent the business data. ... A Session Facade pattern abstracts this
complexity and presents the client a simpler interface that is easy to understand ...
Business Delegate pattern, 131, 247–60 BusinessDelegate, 252-53
BusinessService, 253 class diagram, 250 ... 252 and Service Activator pattern,
420 and Service Locator pattern, 385 and Session Facade pattern, 309 solution,
and Reserve Resource use case, 430 sample code, 380-85 and Service
Activator pattern, 420 ServiceFactory, 372 ServiceLocator, 371-72 and Session
Facade pattern, 309 solution, 369-79 strategies, 372-79 combined EJB and JMS