code: @SuppressWarnings("unchecked")
  	public Map<String, Object> getColumns() {
  		if (columns == null) {
  			if (DbKit.config == null)
  				columns = DbKit.brokenConfig.containerFactory.getColumnsMap();
  			else
  				columns = DbKit.config.containerFactory.getColumnsMap();
  		}
  		return columns;
  	}
docs: Return columns map.