public void addToAddFiles(DataFile elem) {
    if (this.addFiles == null) {
      this.addFiles = new java.util.ArrayList<DataFile>();
    }
    this.addFiles.add(elem);
  }
Returns true if field innerTable is set (has been assigned a value) and false otherwise
amoro-common/src/main/gen-java/org/apache/amoro/api/TableChange.java