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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Our example for this strategy will be to create a filter that preprocesses requests
of any encoding type such that each request may be handled similarly in our core
request handling code. Why might this be necessary? HTML forms that include ...
Front Controller Context The presentation-tier request handling mechanism must
control and coordinate processing of each user across multiple requests. Such
control mechanisms may be managed in either a centralized or decentralized ...
Solution Use a controller as the initial point of contact for handling a request. The
controller manages the handling of the request, including invoking security
services such as authentication and authorization, delegating business
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J2EE Platform Overview
Presentation Tier Design Considerations and Bad Practices 34
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