Automatically exported from medical-site.info - dieforfree/ edsebooks. Java Architect. Sun Microsystems. Core J2EE Patterns. Best Practices and Design Strategies. Université de. Fribourg. 5 janvier [email protected] . Editorial Reviews. From the Back Cover. "The Java landscape is littered with libraries, tools, Core J2EE Patterns: Best Practices and Design Strategies (2nd Edition) (Sun Core Series) - Kindle edition by Deepak Why is ISBN important?.
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Integration. ○. Lots of Code Samples. ○. Design Considerations. ○. Bad Practices. ○. Refactorings. ○. 2nd Edition JavaOne, June ○. 21 patterns. ○. Thank you for downloading core j2ee patterns best practices and design strategies 2nd edition. Maybe you have knowledge that, people have look hundreds. patterns 2nd edition - tldr - free download, core j2ee patterns 2nd edition pdf related documents: network marketing for facebook proven social.
Context Object Problem You want to avoid using protocol-specific system information outside of its relevant context.
An application typically uses system information, such as request, configuration, and security data, throughout the lifecycle of a request and response. Aspects of this system information are accessed based on their relevance to a certain processing context. When application-specific components and services are exposed to system information that is outside their context, flexibility and reusability of these components are reduced.
Using a protocol-specific API outside its relevant context means exposing all the components that use this API to specific interface and parsing details. Each client component is then tightly coupled with that specific protocol.
Solution Use a Context Object to encapsulate state in a protocol-independent way to be shared throughout your application.
Encapsulating system data in a Context Object, as shown in Figure 5, allows it to be shared with other parts of the application without coupling the application to a specific protocol. For example, an HTTP request parameter exists for each field of an HTML form and a Context Object can store this data in a protocol-independent manner while facilitating its conversion and validation.
Then other parts of the application simply access the information in the Context Object, without any knowledge of the HTTP protocol. Any changes in the protocol are handled by the Context Object, and no other parts of the application need to change.
Figure 5: Context Object -- Class Diagram Consequences Improves reusability and maintainability Application components and subsystems are more generic and can be reused for various types of clients, since the application interfaces are not polluted with protocol-specific data types.
Improves testability Using Context Objects helps remove dependencies on protocol-specific code that might tie a runtime environment to a container, such as a web server or an application server. Testing is easier when such dependencies are limited or removed, since automated testing tools, such as JUnit [Junit] can work directly with Context Objects.
Design patterns can speed up the development process by providing tested, proven development paradigms. A micro-architecture is a set of program constituents e. A Pattern Language Approach. Effective Java Second edition. The same calculation many times in parallel, differing by integer parameters used with non-branching pointer math into shared arrays, such as GPU -optimized Matrix multiplication or Convolutional neural network.
Software design patterns Software development. Archived from the original on Designing Distributed Control Systems: Patterns for systems with limited memory.
Best Practices and Design Strategies 2nd Edition. The most important issues related to rich internet applications and possibilities of used technologies were shown basing on this system.
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Register your product to gain access to bonus material or receive a coupon. The completely updated and revised edition to the bestselling tutorial and reference to J2EE Patterns. What's been lacking is the expertise to fuse them into solutions to real-world problems.
These patterns are the intellectual mortar for J2EE software construction. They show how to apply these patterns and how to refactor your system to take advantage of them.
It's just like having a team of experts sitting at your side. The section on refactoring is worth the price of the entire book! Built upon the in-the-trenches expertise of its veteran architect authors, this volume unites the platform's many technologies and APIs in a way that application architects can use, and provides insightful answers to the whys, whens, and hows of the J2EE platform.
Developers often confuse learning the technology with learning to design with the technology. The J2EE Pattern Catalog with 21 patterns and numerous strategies is presented to document and promote best practices for these technologies. Business Tier Design Considerations. Core J2EE Patterns: