Java Web Services: Building Service Oriented Architectures | NLJUG

Java Web Services: Building Service Oriented Architectures.

Part I: Advanced Web Services

Java API for XML-based RPC (JAX-RPC) 2.0 software takes Web services support in the Java platform to the next level. Building on the foundation of JAX-RPC 1.1, a standard component in the Java 2 Platform, Enterprise Edition (J2EE) 1.4, JAX-RPC 2.0 expands the coverage of Web services by including support for asynchronous and messaging-based services, message-level session and security, web service evolution and a vastly improved handler framework.

Security is an essential technology for exposing Web Services outside of the corporate firewall. Most existing security solutions rely on transport level security, which provides security between one endpoint and another. Message-level security provides for more flexible application-to-application security across an arbitrary number of endpoints.

Fast Web Services is an initiative to improve the performance of Web services by using alternative encodings that can be smaller and faster to process than equivalent XML representations. A new standard's initiative is progressing, which builds on key standards, to define how Fast Web Services may interoperate given the Web Service-related standards of SOAP, WSDL, WS-I Basic Profile, and the XML Information Set.

Part II: Service Oriented Architecture

Service Oriented Architectures represent a fundamental shift in the way applications are built. By moving from big, monolithic applications to smaller, re-usable services, companies can dramatically reduce time-to-market, maintainability and flexibility over the applications they build. SOA defines the type of architecture and interfaces of the application, but leaves the implementation to the specific platforms.

This session will explain the new ease-of-development features that will make implementing Web services significantly simpler than before, the standards that are enabling two forms of encoding, explain how message-level security is built into Java Web Services Developer Pack, explain the best practices for implementing a SOA on the J2EE platform, and provide a demonstration of an end-user application architected using SOA and built on J2EE technology.

Angela M. Caicedo
Sun Microsystems
is a Technology Evangelist at Sun Microsystems who specializes in Sun Open Net Environment (Sun ONE) platform technologies. She graduated from the University EAFIT of Medellin Colombia in 1998 with a B.S. in Computer Science. During 1996-1997 Angela was a visitor student at Center for Educational Computing Initiatives at MIT. Prior to joining Sun, Angela worked for three years as a software developer and researcher at the Swiss Federal Institute of Technology (EPFL), in Lausanne Switzerland. Angela did research at Agent Technologies, and in 1999 she made a specialization in Intelligent Agents.

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