@Override
        public Hit asHit() {
            Hit hit = super.asHit();
            hit.setField("source", source);
            hit.setField("code", message.getCode());
            return hit;
        }
A stream of events which can be rendered as Server-Sent Events (SSE).

@author lesters
container-search/src/main/java/com/yahoo/search/result/EventStream.java