dynamic jasper report multi row header

using "Dynamic Jasper", how do you create table header(addColumn) that has multiple rows?

for example

HEADING1 | HEADING2 | HEADING3
HEADING4 | HEADING5 | HEADING6
HEADING7 | HEADING8 | HEADING9
=====================================================
VALUEFORHEADING1, VALUEFORHEADING2, VALUEFORHEADING3
VALUEFORHEADING4, VALUEFORHEADING5, VALUEFORHEADING6
VALUEFORHEADING7, VALUEFORHEADING8, VALUEFORHEADING9
-----------------------------------------------------
VALUEFORHEADING1, VALUEFORHEADING2, VALUEFORHEADING3
VALUEFORHEADING4, VALUEFORHEADING5, VALUEFORHEADING6
VALUEFORHEADING7, VALUEFORHEADING8, VALUEFORHEADING9
---------------------------------------开发者_Python百科---------------

thanks

UPDATE

Or any other libs that can generate dynamic jasper report like this?

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It's not doable in DJ, but it's possible using DynamicReports, here is an example