Appendix D. What s New in WAS 6?

     

Appendix D. What's New in WAS 6?

"There are many enhancements with WebSphere 6.0, but the most important is support for the J2EE 1.4 standard, which brings numerous improvements related to Web services."

”www.midrangeserver.com , January 2004

WebSphere Application Server 6 was not yet available when this book was written. So this Appendix describes many of the new features expected to be in this version of WAS. Most of the early information available was about WebSphere Application Server Technology for Developers. The J2EE 1.4 compliant WebSphere Application Server Technology for Developers V6 will help us understand the expected new features in WAS 6. The J2EE 1.4 specification includes a number of improvements to the existing technology:

  • Web Services for J2EE, V 1.1

  • Java Servlet 2.4

  • JavaServer Pages (JSP) 2.0

  • Enterprise Java Beans (EJB) 2.1

  • Java Message Service (JMS) 1.1

  • JDBC 3.0

  • Java API for XML Processing (JAXP) 1.2

The features that IBM has announced for WebSphere 6.0 suggest a renewed commitment to the Web services model and open standards generally . Among the features that WebSphere developers could look at early are support for Java Connector Architecture (JCA) 1.5 and JSR 109. JCA is a set of mechanisms for application integration at the level of data, allowing for bidirectional communication between J2EE servers and external applications by way of resource adaptors. The development of JCA runs alongside the absorption of specialist Enterprise Application Integration (EAI) tools into the WebSphere portfolio. Both trends suggest that back-end integration, implemented by way of open and industry-standard mechanisms, plays a major role in IBM's On Demand Business road map ”and in the future of WebSphere.

Support for JSR 109 (the number refers to the underlying Java Specification Request) is an even clearer signal of where IBM is heading with WebSphere. JSR 109 defines the programming model and runtime architecture for implementing Web services in Java. By mapping J2EE concepts to their Web services equivalents, extending existing frameworks, and proposing new ones, JSR 109 offers the prospect of a transparent implementation of Web services within the J2EE framework ”a call to a Web service would be no more elaborate than a standard remote procedure call.

WebSphere Application Server on J2EE 1.4 helps you improve integration with customers, suppliers, and partners with complete Web Services support, including

  • JAX-RPC 1.1 API, which supports service endpoints based on servlets and Enterprise Beans and provides interoperability with Web Services based on the WSDL-based SOAP bindings.

  • Web Services for J2EE specification (JSR 109), which defines deployment requirements for Web services and utilizes the JAX-RPC programming model.

  • Platform Web Services interoperability via the WS-I Basic Profile 1.0.

  • Leverage existing assets with new functions using Java Connector Architecture (JCA) 1.5.

  • Resource adapters that provide bi-directional connectivity (synchronous and asynchronous) between EISs (Enterprise Information Systems) and J2EE-compliant applications.

  • Benefits from a highly scalable and efficient embedded JMS messaging provider built in to the application server.

  • The ability to take advantage of server enhancements that enable faster, easier development with new Java Servlet and Java Server Pages (JSP) technologies.

  • Servlets that now support request listeners and enhanced filters.

  • A simplified JSP technology page and extension development models that make it easier than ever for developers to build JSP-enabled pages.



IBM WebSphere and Lotus Implementing Collaborative Solutions
IBM(R) WebSphere(R) and Lotus: Implementing Collaborative Solutions
ISBN: 0131443305
EAN: 2147483647
Year: 2003
Pages: 169

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