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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Hence, once a client's method invocation on a stateless session beans is
completed, the container is free to reuse that session bean instance for another
client. This allows the container to maintain a pool of session beans and to reuse
Stateless Session Bean Reconstructs Conversational State for Each Invocation
Problem Summary Some designers choose stateless session beans to increase
scalability. They may inadvertently decide to model all business processes as ...
Typically, a method invocations on the Business Delegate results in a remote
method invocation under the wraps. Ignoring this, the developer may tend to
make numerous method invocations to perform a single task, thus increasing the
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J2EE Platform Overview
Design Considerations Bad Practices and Refactorings
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