code: public Object doFilter(Object obj, Method method, Object[] params, AjaxFilterChain chain) throws Exception
      {
          log.debug("About to execute: " + method.getName() + "() on " + obj);
          Object reply = chain.doFilter(obj, method, params);
          log.debug("Executed: " + method.getName() + "() giving " + reply);
          return reply;
      }
docs: /* (non-Javadoc)
  @see uk.ltd.getahead.dwr.AjaxFilter#doFilter(java.lang.Object, java.lang.reflect.Method, java.lang.Object[], uk.ltd.getahead.dwr.AjaxFilterChain)