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JAX-WS relies on the annotation feature of Java 5. The JAX-WS annotations specify the metadata used to map the SEI to a fully specified service definition. Among the information provided in the annotations are the following:
The target namespace for the service.
The name of the class used to hold the request message
The name of the class used to hold the response message
If an operation is a one way operation
The binding style the service uses
The name of the class used for any custom exceptions
The namespaces under which the types used by the service are defined
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Most of the annotations have sensible defaults and it is not necessary to provide values for them. However, the more information you provide in the annotations, the better your service definition is specified. A well-specified service definition increases the likelihood that all parts of a distributed application will work together. |
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