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Java Web Services

by David A. Chappell, Tyler Jewell

ISBN 0596002696 / 9780596002695 / 0-596-00269-6
Publisher O'Reilly Media
Language English
Edition Softcover
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Book summary

At the end of the day, Web Services aren't hard to conceptualise. Implementation is another story, however. Java Web Services does a very good job of dispersing the confusing terminology (and obfuscating hype) and showing you exactly how to do Web Services work in Java. This doesn't sound like a revolutionary concept, but unfortunately it is. David Chappell and Tyler Jewell have comfortably fit into less than 250 pages what others have not done as well in twice as much space.

Take Universal Description, Discovery and Integration (UDDI) work as an example. UDDI exists to help software locate other software that does what it wants. How do you do that? Chappell and Jewell present two concise program listings--a client and a server--that show how to do an UDDI lookup. They then refine their code by using a third-party API that makes the work easier. Similarly pragmatic attention goes to Simple Object Access Protocol (SOAP), in which they show how to create a message, populate it with XML, make an attachment if necessary and send it on its way. You'll not find a lot of frills or conceptual explanations (though there are enough "why" sections to ensure that you're not just typing recipes blindly)--the emphasis is on writing Java code that interacts with Web Services protocols and standards. --David Wall

Topics covered: how to write Web Services software in Java, with respect to Universal Description, Discovery and Integration (UDDI), Simple Object Access Protocol (SOAP), and Web Services Description Language (WSDL). There's also coverage of inter-process communication under JAX-RPC and ways to implement security. All the low-level stuff is here. Look elsewhere for architecture and design information. [via]