Core J2EE Patterns: Best Practices and Design StrategiesPrentice 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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170 ページ
... handling processing across multiple requests , as does a controller . Filters are better suited to massaging requests and responses for ultimate handling by a target resource , such as a controller . Additionally , a control- ler often ...
... handling processing across multiple requests , as does a controller . Filters are better suited to massaging requests and responses for ultimate handling by a target resource , such as a controller . Additionally , a control- ler often ...
172 ページ
... handling mechanism must control and coordinate processing of each user across multiple requests . Such control mechanisms may be managed in either a centralized or decentralized manner . Problem The system requires a centralized access ...
... handling mechanism must control and coordinate processing of each user across multiple requests . Such control mechanisms may be managed in either a centralized or decentralized manner . Problem The system requires a centralized access ...
173 ページ
... handling a request . The controller manages the handling of the request , including invoking security services such as authentication and authorization , delegating business processing , managing the choice of an appropriate view , handling ...
... handling a request . The controller manages the handling of the request , including invoking security services such as authentication and authorization , delegating business processing , managing the choice of an appropriate view , handling ...
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asynchronous business components Business Delegate business logic business objects business service business tier BusinessObject class diagram coarse-grained object Composite Entity composite value object Composite View container context create Custom Tag Helper Data Access Object database Delegate pattern dependent objects EJBHome encapsulated enterprise bean entity bean Facade pattern Figure Front Controller handling Helper Strategy HttpServletRequest implementation interactions interface invocation invokes J2EE platform Java Center JDBC JNDI JSP View lookup multiple Presentation Tier processing Project ProjectVO public class public String public void Refactoring relationships remote remote method call Resource Tier ResourceException ResourceVO response retrieval Sample Code sequence diagram server Service Locator Service to Worker ServiceLocator servlet Session Facade shown in Example solution stateless session bean template Tier Patterns tion transaction typically Value List Handler Value Object Assembler Value Objects Strategy ValueListHandler View Helper view management View Strategy