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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... Design complex entity beans “Composite Entity” on page 310 Identify coarse-
grained objects and dependent objects for entity bean design “Composite Entity”
on page 310 Design for coarse-grained entity beans “Composite Entity” on page
Participants and Responsibilities Composite Entity CompositeEntity is the coarse
-grained entity bean. The CompositeBntity may be the coarse-grained object, or it
may hold a reference to the coarse-grained object. The “Strategies” section ...
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
Presentation Tier Design Considerations and Bad Practices 34
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