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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getPreviousElements (int howMany) obtains a collection of value objects that are
in the list prior to the current element. • getNextElements ( int ... ValueListHandler
This is a list handler object that implements the ValueListlterator interface.
The Value List Handler pattern provides a caching facility in the Value List
Handler session bean to hold the result set obtained from a query execution. The
result set is a collection of value objects that can be serialized if required. When
For example, a query to display a list of books uses a Value List Handler to obtain
the list. When the user wants to view a book in detail, it involves the book's entity
bean in a transaction. Sample Code Implementing the Value List Handler as a ...
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J2EE Platform Overview
Design Considerations Bad Practices and Refactorings
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