Provide a convenient method for indicating that a listener does not

need to be responded to. It turns out that a listener may not be
a marshaller if a server entity is calling a service request method
directly.  The convenience method handles this and is also cleaner looking
for callers.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3832 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/data/InvocationMarshaller.java

@@ -237,6 +237,17 @@ public class InvocationMarshaller
         return _invCode;
     }
 
+    /**
+     * A convenience method to indicate that the listener is not going
+     * to be responded-to, and that this is ok.
+     */
+    public static void setNoResponse (InvocationListener listener)
+    {
+        if (listener instanceof ListenerMarshaller) {
+            ((ListenerMarshaller) listener).setNoResponse();
+        }
+    }
+
     /**
      * Called by generated invocation marshaller code; packages up and
      * sends the specified invocation service request.