@Override
    public String toString() {
        return "DocumentState{" +
               "docId=" + docId +
               ", gid=" + gid +
               ", timestamp=" + timestamp +
               ", removeEntry=" + removeEntry +
               '}';
    }
@author <a href="mailto:einarmr@yahoo-inc.com">Einar M R Rosenvinge</a>
documentapi/src/main/java/com/yahoo/documentapi/messagebus/protocol/DocumentState.java