How to Implement Async JAX-WS 2.1 Service

Question

I would appreciate some guidance, or links to documentation, on how to implement an asynchronous JAX-WS 2.1 web service (note that I am NOT asking how to implement a client program that invokes a JAX-WS web service asynchronously b/c BPEL will be invoking the service).
Ultimately, what I need to accomplish is to:
(a) implement a JAX-WS web service that can be invoked asynchronously
(b) deploy that JAX-WS web service to Oracle WebLogic 10.3 and
(c) invoke the JAX-WS web service asynchronously from Oracle BPEL Process Manager 10.1.3.3.
As an example, let's say I have the following class that I'd like to expose as an async JAX-WS web service:
<pre>
public class EngineConfigurationService
public Configuration configureEngine(ConfigurationRequest aRequest)
//....arbitrary amounts of long-running computation happens here...
return configuration;
</pre>
How would I annotate this class to allow it to be consumed as an async JAX-WS web service? Would I need any other classes (e.g., a "response" class)?
Thanks in advance for any help.
Dave

Answer 1

I recently developed a test async web service and deployed it on weblogic 9. What I did was 1.) create a java class with with standard ws annotations.
2.)Compile it using jwsc ant task setting the attribute enableAsyncService="true".
I am pasting the java file and the ant target here for your reference.
<taskdef name="jwsc" classname="weblogic.wsee.tools.anttasks.JwscTask" classpathref="classpath.basic"/>
<target name="buildWebService">
     <jwsc
     srcdir="${basedir}/src/com/test/"
     sourcepath="${basedir}/src/com/test/"
     destdir="${basedir}/build"
     classpathref="classpath.basic"
     keepGenerated="true"
     enableAsyncService="true"
     debug="on">
     <module contextPath="TestAsyncWS" name="TestAsyncWS" explode="false" >
          <jws file="TestAsyncWS.java">
     <WLHttpTransport contextPath="TestAsyncWS" serviceUri="TestAsyncWS" portName="TestAsyncWS" />
     </jws>
     <FileSet dir="${basedir}/src" >
     <include name="**/*.java" />
     </FileSet>
     </module>
          </jwsc>     
     </target>
and here is the java class
package com.test;
import javax.jws.WebMethod;
import javax.jws.WebService;
import javax.jws.soap.SOAPBinding;
@WebService (name = "TestAsyncWS", targetNamespace = "java:com.test")
public class TestAsyncWS
     public TestAsyncWS()
     @WebMethod()
          public String sayHello(String textToDisplay)
          String result = "I can still work.Here is what you sent to me. "+ textToDisplay;
          System.out.println(result);
          try {
               Thread.sleep(20000);
          } catch (InterruptedException e) {
               e.printStackTrace();
          return result;
}