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