Is it possible to set ETags using JAX-RS without resorting to Response objects?

In one of the few questions (with answers) I have found on SO regarding JAX-RS and caching, the answer to generating ETags (for caching) is by setting some values on the Response object. As in the following:

@GET
@Path("/person/{id}")
public Response getPerson(@PathParam("id") String name, @Context Request request){
  Person person = _dao.getPerson(name);

  if (person == null) {
    return Response.noContent().build();
  }

  EntityTag eTag = new EntityTag(person.getUUID() + "-" + person.getVersion());

  CacheControl cc = new CacheControl();
  cc.setMaxAge(600);

  ResponseBuilder builder = request.evaluatePreconditions(person.getUpdated(), eTag);

  if (builder == null) {
    builder = Response.ok(person);
  }

  return builder.cacheControl(cc).lastModified(person.getUpdated()).build();
}

The problem is that will not work for us, since we use the same methods for both SOAP and REST services, by annotating the methods with @WebMethod (SOAP), @GET (and whatever else we might need to expose the service). The previous service would look like this to us (excluding the creation of headers):

@WebMethod
@GET
@Path("/person/{id}")
public Person getPerson(@WebParam(name="id") @PathParam("id") String name){
  return _dao.getPerson(name);
}

Is there any way - through some extra configuration - of setting those headers? This is the first time I have found that using Response objects actually has some benefit over just auto-conversion ...

We are using Apache CXF.