Java API for XML-based RPC

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Java API for XML-based RPC (JAX-RPC) allows a Java application to invoke a Java-based Web service with a known description while still being consistent with its WSDL description. JAX-RPC is one of the Java XML programming APIs. It can be seen as Java RMIs over Web services. JAX-RPC 2.0 was renamed JAX-WS 2.0 (Java API for XML Web Services). JAX-RPC 1 is deprecated with Java EE 6.[1] The JAX-RPC service utilizes W3C (World Wide Web Consortium) standards like WSDL or Web Service Description Language.[2]

It works as follows:

  1. A Java program executes a method on a stub (local object representing the remote service)
  2. The stub executes routines in the JAX-RPC Runtime System (RS)
  3. The RS converts the remote method invocation into a SOAP message
  4. The RS transmits the message as an HTTP request

The advantage of such a method is that it allows the Web service to be implemented at server-side as a Servlet or EJB container. Thus, Servlet or EJB applications are made available through Web services.

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