if (log.isDebugEnabled()) log.debug("Updating session to agg("+me+"): " + getQueryId());
if (log != null && log.isDebugEnabled()) log.debug("Updating session to agg("+me+"): " + getQueryId());
    public void pushUpdate () {      if (log.isDebugEnabled()) log.debug("Updating session to agg("+me+"): " + getQueryId());      sendMessage(relay, createUpdateDelta().toXml());    }