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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Object Granularity (Coarse-Grained UePSLS Fine-Grained)—Object granularity
impacts data transfer between the enterprise bean and the client. In most
applications, clients typically need a larger chunk of data than one or two rows
from a ...
With fine-grained entity beans, the mapping is usually done so that each entity
bean instance maps to a single row in the database. This fine-grained mapping
creates a dependency between the client and the underlying database schema, ...
Improves Manageability by Reducing Entity Beans As discussed, implementing
persistent objects as fine-grained entity beans results in a large number of
classes that need to be developed and maintained. Using a Composite Entity
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J2EE Platform Overview
Presentation Tier Design Considerations and Bad Practices 34
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