A Web Services Invocation Framework (WSIF) service is linked to the underlying service through a WSIF provider. A provider is an implementation of a WSDL binding that can run a WSDL operation through a binding-specific protocol. Providers implement the interface between the WSIF API and the actual implementation of a service.
Providers are pluggable within the WSIF framework, and are registered according to the namespace of the WSDL extension that they implement. Some providers use the Java 2 platform, Enterprise Edition (J2EE) programming model to utilize J2EE services. If a provider is available, but its required class libraries are not, then the provider is disabled.
To use the providers that are supplied with WebSphere Application Server, see the following topics:
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