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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If you are looking for thU Find it here Minimize code duplication between entity
beans and Value Object classes "Value ... 291 Pattern Design complex entity
beans "Composite Entity" on page 310 Pattern Identify coarse-grained objects
The "Strategies" section explains the different implementation strategies for a
Composite Entity. Coarse-Grained Object A coarse-grained object is an object
that has its own life cycle and manages its own relationships to other objects.
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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