code: protected void pushAttributeValueEvent(ZMQ.Socket eventSocket) throws DevFailed {
          xlogger.entry();
          eventTrigger.setError(null);
          eventTrigger.updateProperties();
          if (isSendEvent()) {
              sendAttributeValueEvent(eventSocket);
          }
          xlogger.exit();
      }
docs: Fire an event containing a value is condition is valid.
  
  @throws DevFailed
  @param eventSocket