StringBuffer rtn = new StringBuffer();
StringBuilder rtn = new StringBuilder();
  public String toString() {    StringBuffer rtn = new StringBuffer();    rtn.append("Type: " + _tableType);    rtn.append("\nRow count: " + _rowCount);    rtn.append("\nColumn count: " + _columnCount);    rtn.append("\nIndex count: " + _indexCount);    rtn.append("\nColumns:\n");    Iterator iter = _columns.iterator();    while (iter.hasNext()) {      rtn.append(iter.next().toString());    }    rtn.append("\nIndexes:\n");    iter = _indexes.iterator();    while (iter.hasNext()) {      rtn.append(iter.next().toString());    }    rtn.append("\nOwned pages: " + _ownedPages + "\n");    return rtn.toString();  }