Abstract
The Brave New World of Web services continues its forward march, with whole new crops of WS-* proposed specifications (and even a few that have been approved), new ways to improve interoperability (WS-I Basic Profile), and new interoperability problems (especially with attachments, where a certain software monopoly can't make up their mind what they're going to support). In this session you'll learn how SOAP has evolved from a simple RPC technique (the rpc/encoded approach) to a wrapper around XML document exchange (the document/literal approach). You'll find out about different ways of implementing Web services using the JAX-RPC reference implementation and the Apache Axis open source framework, and learn how new frameworks designed specifically for document/literal can make things easier. You'll see how the performance of the different approaches stacks up as compared with direct Java RMI, and learn what you can do to improve Web service performance for your applications. Finally, you'll get pointers on the increasingly important issues of attachments, security, and the whole Service Oriented Architecture (SOA) concept. Dennis is a member of the JAX-RPC 2.0 Expert Group, a contributor to Apache Axis, and the originator of the alternative JibxSoap Web services framework. He also has practical experience in architecting and implementing Web services for commercial clients of all sizes.
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Audience
Intermediate level of experience with both XML and Java.
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