apollo-core/src/main/java/com/ctrip/framework/apollo/core/dto/ApolloConfigNotification.java/ApolloConfigNotification/ApolloConfigNotification
class ApolloConfigNotification:  public ApolloConfigNotification(String namespaceName, long notificationId) {
    this.namespaceName = namespaceName;
    this.notificationId = notificationId;
  }