Chapter 3 Service Endpoint Design
113
3.8
Deploying and Packaging a Service Endpoint
Up to now, we have examined Web services on the J2EE platform in terms of
design, development, and implementation. Once you complete the Web services
implementation, you must write its deployment descriptors, package the service
with all its components, and deploy the service. 
E
Developers should, if at all possible, use tools or IDEs to develop a Web ser 
vice. These Web service development tools and IDEs automatically create the 
proper deployment descriptors for the service and correctly handle the packag 
ing of the service steps necessary for a service to operate properly. Further 
more, tools and IDEs hide these details from the developer.
Although you can expect your development tool to perform these tasks for
you, it is good to have a conceptual understanding of the J2EE 1.4 platform
deployment descriptor and packaging structure, since they determine how a
service is deployed on a J2EE server and the service's availability to clients. This
section, which provides a conceptual overview of the deployment and packaging
details, is not essential reading. Nonetheless, you may find it worthwhile to see
how these details contribute to portable, interoperable Web services. 
3.8.1 Service Information in the Deployment Descriptors 
To successfully deploy a service, the developer provides the following information. 
  Deployment related details of the service implementation, including the Web 
service interface, the classes that implement the Web service interface, and so 
forth.
  Details about the Web services to be deployed, such as the ports and mappings
  Details on the WSDL port to port component relationship
More specifically, the deployment descriptor contains information about a
service's port and associated WSDL. Recall from  Web Service Technologies
Integrated in J2EE Platform  on page 49:






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