Core J2EE Patterns: Best Practices and Design Strategies
Prentice Hall PTR, 2001 - 459 ページ
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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These are typically business-tier methods accepting parameters with types such
as HttpServletRequest that might be replaced with parameters of more generic
types, such as String, int, or Userlnfo. □ Modify client code in the presentation tier
The dispatcher uses the RequestDispatcher object (supported in the servlet
specification), but it also typically encapsulates some additional processing. The
more responsibilities that this component encapsulates, the more it fits into the ...
Since the view is the initial contact point for handling a request, custom tag
helpers are typically used in these cases to perform business processing or to
delegate this processing to other components. See the listing in Example 7.35 in
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J2EE Platform Overview
Design Considerations Bad Practices and Refactorings
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