Asynchronous Actions

public void doSomething(AsyncResponse asyncResponse);

public class SimpleAsync implements ActionBean {
  
  public void simpleEvent(AsyncResponse asyncResponse) {
    // simple without really anything async...
    asyncResponse.complete(new ForwardResolution("/WEB-INF/stuff.jsp"));
  }
  
}

public class ReallyAsync implements ActionBean {
  
  public void asyncEvent(final AsyncResponse asyncResponse) {
	// submit to executor service
	ExecutorService executor = ... ; 
	executorService.submit(new Runnable() {
	   @Override
	   public void run() {
			// do anything in a separate thread and complete with a forward
			asyncResponse.complete(new ForwardResolution("/WEB-INF/stuff.jsp"));    
	   }
	});
  }
  
}

public class ReallyAsyncWithLambdas implements ActionBean {
  
  public void asyncEventWithLambda(final AsyncResponse asyncResponse) {
	// submit to executor service
	ExecutorService executor = ... ; 
	executorService.submit(() -> {
		// do anything in a separate thread and complete with a forward
		asyncResponse.complete(new ForwardResolution("/WEB-INF/stuff.jsp"));    
	});
  }
  
}

public class WithNonBlockingClient implements ActionBean {
  
  public void nonBlocking(final AsyncResponse asyncResponse) {
	// call non blocking http client
	httpClient.get('/foo/bar', httpResponse -> {
		// client completed : use http response
		httpResponse.xyz();
		// and complete...
		asyncResponse.complete(new ForwardResolution("/WEB-INF/stuff.jsp"));
	});
  }
  
}