Chapter 4. The Role of WSDL, SOAP, and Java/XML Mapping in SOA

This chapter describes how the core Web Services standards—WSDL and SOAP—are used for implementing SOA in a Java environment. In particular, since a great many Java applications being developed need to integrate with an existing or planned SOA framework, I examine WSDL and SOAP from the perspective of SOA Integration. SOA Integration is an approach to systems integration that involves deploying the applications to be integrated as sets of SOA-style services. The integration is accomplished by aggregating the resulting services to create loosely coupled applications built from the underlying services.

The key enabling technology for using WSDL and SOAP with Java is Java/XML mapping. ...

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