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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t Using Entity Beans as Fine-Grained Objects Problem Summary Entity beans are
meant to represent coarse-grained transactional persistent business components
. Using an entity bean to represent fine-grained objects increases the overall ...
Entity beans are better suited for coarse-grained persistent business objects.
Problem In a J2EE ... When entity beans are fine-grained objects, clients tend to
invoke more individual entity bean methods, resulting in high network overhead.
Improves Manageability by Reducing Entity Beans As discussed, implementing
persistent objects as fine-grained entity beans results in a large number of
classes that need to be developed and maintained. Using a Composite Entity
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J2EE Platform Overview
Design Considerations Bad Practices and Refactorings
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