I am trying to invoke a function using "Events.instance().raiseAsynchronousEvent", Observer works fine for persist, update.
I tried as per my post :
http://www.seamframework.org/Community/BestProcessForCallingAnotherApplicationFromSeamApplication#comment60582

BUT as per requirement, I am providing link which calls quantExperimentHome.generateAnalysisDataset(), console output ONLY prints
"QuantExperimentHome.generateData(), ENTERED " and externalApplicationInvoker.doStuff() is not invoked.

I am doing something wrong :(, please suggest....

XHTML :
-------
<s:link id="generateData"
     value="Generate data"
     action="#{quantExperimentHome.generateData}">          
</s:link>

@Name("quantExperimentHome")
public class QuantExperimentHome extends EntityHome<QuantExperiment> {

     public String generateData(){
          System.out.println("QuantExperimentHome.generateData(), ENTERED ");
          Events.instance().raiseAsynchronousEvent("generateData","arg1", "arg2");
          return "generateData";
     }
}


@Name("externalApplicationInvoker")
@Scope(ScopeType.STATELESS)
public class ExternalApplicationInvoker
{
   @Observer("generateData")
   @Transactional
   public void doStuff(String qType, String qHjid)
   {    
          System.out.println("ExternalApplicationInvoker.doStuff(), ENTERED  TEST");// THIS IS NOT INVOKED
          //call external application
   }

   @Observer("org.jboss.seam.afterTransactionSuccess.QuantExperiment")
   public void experimentSavedOrUpdated()
   {
      //THIS WORKS FINE     
      //call external application
   }     
}