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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f I Value Object Assembler 34 1 □ Solution Use a Value Object Assembler to
build the required model or submodel. The Value Object Assembler uses value
objects to retrieve data from various business objects and other objects that
May Introduce Stale Value Objects The Value Object Assembler constructs value
objects on demand. These value objects are snapshots of the current state of the
model, represented by various business components. Once the client obtains a ...
.1 Example 8.28 Implementing the Value Object Assembler // add list of tasks to
ProjectDetailsData pData. listOf Tasks = listOf Tasks; // add any other data to the
value object // return the composite value object return pData; } Related Patterns
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J2EE Platform Overview
Design Considerations Bad Practices and Refactorings
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