JAXR is a standard API used to access XML registries from the JAVA platform. An XML registry is a listing of services available on the Web. JAXR provides APIs for the client applications to query the registries, or publish their own information in them using the registry standards.
It acts as a pluggable layer that allows access to registries implemented on different standards, such as Universal Description Discovery and Integration (UDDI) and Electronic Business using eXtensible Markup Language (ebXML). You can see from the figure below how JAXR API interacts with the respective provider to get data.
Figure: – JAXR architecture
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