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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The client can be Business Delegates (see "Business Delegate" on page 248) or
a different BusinessObject. BusinessObject The BusinessObject represents a role
in this pattern that can be fulfilled by a session bean, an entity bean, or a Data ...
The ValueObjectAssembler then locates the required BusinessObject instances
to retrieve data to build the composite value object. BusinessObjects are
business-tier components such as entity beans and session beans, DAOs, and
The DataAccessObject abstracts the underlying data access implementation for
the BusinessObject to enable transparent access to the data source. The
BusinessObject also delegates data load and store operations to the
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J2EE Platform Overview
Design Considerations Bad Practices and Refactorings
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