public Object touch(int row) throws PageException {
  Object o=query.getAt(columnName,row,NullSupportHelper.NULL());
  if (o != NullSupportHelper.NULL())   return o;
  return query.setAt(columnName,row,new StructImpl());
}

public Object touch ( int row ) throws PageException { Object o = query . getAt ( columnName , row , NullSupportHelper . NULL ( ) ) ; if ( o != NullSupportHelper . NULL ( ) ) return o ; return query . setAt ( columnName , row , new StructImpl ( ) ) ; }
touch a value , means if key dosent exist , it will created
