public void deserializeTriggerTable(InputStream inputStream) throws IOException {
    int size = ReadWriteIOUtils.readInt(inputStream);
    while (size > 0) {
      TriggerInformation triggerInformation = TriggerInformation.deserialize(inputStream);
      triggerTable.put(triggerInformation.getTriggerName(), triggerInformation);
      size--;
    }
  }
This Class used to save the information of Triggers and implements methods of manipulate it.
iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/trigger/TriggerTable.java