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  2. RPG400-L
  3. December 2015

Re: POI large file

On Fri, Dec 4, 2015 at 8:50 AM, <darren@xxxxxxxxx> wrote:
I find generating spreadsheets with the SXSSF streaming model in POI works
a lot better. It nearly eliminates the heap size issue. The downside is
that you need to build the spreadsheet from the top down. Since that
describes 97% of the work we do, it works well for us.

Yeah, the most natural and obvious way to build a worksheet is from
the top down anyway. Even for the weird cases where it's not, it
should always be possible to rearrange your logic so that you start at
the top and work your way down row by row. Worst case, you can use a
database table as a temporary workspace where you jump around as
needed, and then copy that table row by row into a worksheet at the
very end.

John Y.

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