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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A coarse-grained object can be a Java object contained in the Composite Entity.
Or, the Composite Entity itself can be the coarse-grained object that holds
dependent objects. These strategies are explained in the “Strategies” section.
Subsequently, when the container invokes the ejbStore () method on this
Composite Entity instance, the ejbStore () method can check which dependent
objects have gone dirty and selectively save those changes to the database. The
Overhead of Multi-level Dependent Object Graphs If the dependent objects graph
managed by the Composite Entity has many levels, then the overhead of loading
and storing the dependent objects increases. This can be reduced by using the ...
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J2EE Platform Overview
Presentation Tier Design Considerations and Bad Practices 34
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