docs: public void writeData(FieldTable table) throws Exception
      {
          if (this.getLookupKey() instanceof String)
          {
              FieldList record = table.getRecord();
              /** Write a tree object, and all the subtrees */
  //?            String strFilePath = (String)this.getLookupKey();
  //?            String strFilename = this.getPDatabase().getFilename(strFilePath, true);
              if (record != null) if (((Record)record).isInFree())
              {
              // Currently, this is read-only
              }
          }
      }