September 2010
Intermediate to advanced
766 pages
18h 35m
English
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Chapter 20. EJB 3.1: Web Services Standards
Web services have taken the enterprise computing industry by storm in the past couple of years, and for good reason. They present the opportunity for real interoperability across hardware, operating systems, programming languages, and applications. Based on the XML, SOAP, and WSDL standards, web services have enjoyed widespread adoption by nearly all of the major enterprise players, including Microsoft, IBM, BEA, JBoss, Oracle, Hewlett-Packard, and others. Sun Microsystems has integrated web services into the Java EE platform; specifically, Sun and the Java Community Process have introduced several web services APIs, including the Java API for XML Web Services (JAX-WS), the Java API for XML-based RPC (JAX-RPC), the SOAP with Attachments API for Java (SAAJ), and the Java API for XML Registries (JAXR). These web services APIs were integrated into J2EE 1.4 and have been expanded upon in subsequent releases, including Java EE 6 and EJB 3.1.
This chapter provides an overview of the technologies that are the foundation of web services: XML Schema and XML Namespaces, SOAP, and WSDL. Chapter 21 provides an overview of JAX-WS and JAX-RPC, the most important web services APIs.
Web Services Overview
The term web services means different things to different people, but thankfully, the definition is straightforward for EJB developers because the Java EE platform has adopted a rather narrow view of them. Specifically, a web service is a remote application ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.