Response setValue(Object value, Responder responder, Response response, [ int maxPermission = Permission.CONFIG ])

Called by the link internals to set a value of a node.

Source 

Response setValue(Object value, Responder responder, Response response,
    [int maxPermission = Permission.CONFIG]) {
  if (onSetValue(value) !=  true)
    // when callback returns true, value is rejected
    super.setValue(value, responder, response, maxPermission);
  return response;
}