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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Structure Figure 7.11 is the class diagram representing the View Helper pattern.
Client View Helper Figure 7.11 View Helper class diagram Participants and
Responsibilities Figure 7.12 shows the sequence diagram representing the View
Client <<JSP-> View 1.1: Response | | | | | | | | | I Figure 7.13 View Helper simple
sequence diagram View A view represents and displays information to the client.
The information that is used in a dynamic display is retrieved from a model.
o o o Dispatcher View 235 In this case, we are left with the View Helper pattern,
with the request being handled directly by the view. Since the view is the initial
contact point for handling a request, custom tag helpers are typically used in