@Override
   public BeanField findField(int col) {
      String columnName = getColumnName(col);
      return (StringUtil.trimToNull(columnName) != null) ? findField(columnName) : null;
   }
@Override
   public BeanField findField(int col) {
      String columnName = getColumnName(col);
      return (StringUtil.trimToNull(columnName) != null) ? findField(columnName) : null;
   }
@ Override public BeanField findField ( int col ) { String columnName = getColumnName ( col ) ; return ( StringUtil . trimToNull ( columnName ) != null ) ? findField ( columnName ) : null ; }
Gets the field for a given column position.

@param col the column to find the field for
@return - BeanField containing the field - and whether it is mandatory - for a given column position, or null if
one could not be found
Gets the field for a given column position .