Core J2EE Patterns: Best Practices and Design Strategies
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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They feel that entity beans should not contain business logic, which is often
misunderstood to mean that only code related to getting and setting data must be
included in the entity bean. Business logic generally includes any logic
Besides increasing the complexity of the code, it reduces flexibility, because the
entity bean must change if there are any changes in its relationships. Also, there
is no guarantee as to the validity of the entity bean references to other entity ...
inter-entity-bean relationships. This pattern provides a central place to manage
both relationships and object hierarchy. • Improves Manageability by Reducing
Entity Beans As discussed, implementing persistent objects as fine-grained entity
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J2EE Platform Overview
Presentation Tier Design Considerations and Bad Practices 34
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