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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137 ページ
... Helper View Business Logic Helper Business Logic Helper Figure 5.7 Extracting business logic into helper classes Business logic has been extracted into helper classes instead of being embedded directly within the JSP . These helpers ...
... Helper View Business Logic Helper Business Logic Helper Figure 5.7 Extracting business logic into helper classes Business logic has been extracted into helper classes instead of being embedded directly within the JSP . These helpers ...
200 ページ
... View Helper pat- tern . Client View Helper 1 .. * 0 .. * Figure 7.11 View Helper class diagram Participants and Responsibilities Figure 7.12 shows the sequence diagram representing the View Helper pattern . A controller typically ...
... View Helper pat- tern . Client View Helper 1 .. * 0 .. * Figure 7.11 View Helper class diagram Participants and Responsibilities Figure 7.12 shows the sequence diagram representing the View Helper pattern . A controller typically ...
235 ページ
... View Helper pattern , with the request being handled directly by the view . Since the view is the ini- tial contact point for handling a request , custom tag helpers are typ- ically used in these cases to perform business processing or ...
... View Helper pattern , with the request being handled directly by the view . Since the view is the ini- tial contact point for handling a request , custom tag helpers are typ- ically used in these cases to perform business processing or ...
目次
J2EE Pattern Catalog | xxii |
Patterns Frameworks and Reuse | 24 |
Presentation Tier Design Considerations and Bad Practices | 34 |
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application asynchronous bad practices business components Business Delegate business logic business objects business service business tier BusinessObject Chapter class diagram coarse-grained object Command object Composite Entity create Data Access Object database Delegate pattern dependent objects Dispatcher View pattern encapsulated enterprise bean entity bean Facade pattern Factory Figure Front Controller handling Helper Strategy implementation interactions interface invoke J2EE Pattern Catalog J2EE platform Java Java Center java.io.IOException JavaBean JDBC JNDI JSP View lookup Martin Fowler nextview Presentation Tier processing Project ProjectVO public class public String public void Refactoring relationships resource ResourceException ResourceVO retrieval reuse role Sample Code sequence diagram server Service Activator Service Locator Service to Worker ServiceLocator servlet servlet request ServletResponse Session Facade shown in Example solution stateless session beans technologies template Tier Patterns transaction typically update Value Object Assembler Value Objects Strategy view management View Strategy