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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When the container invokes the entity bean's ejbload () method, either for the
initial load or for reloads to synchronize with the persistent store, loading the
entire tree of dependent objects can prove wasteful. Similarly, when the container
The Command object initiates the retrieval of Account data. The Account object
invokes the business service, which returns the data in the form of a Value Object
(see “Value Object” on page 261), implemented as a JavaBean. Content retrieval
The client will have to invoke on an enterprise bean to activate it again. EJB 2.0
introduces a message-driven bean as a stateless session bean, but it is not
possible to invoke other types of enterprise beans asynchronously. Solution Use