Java Development Tools

Hi,

i tried to discover, how oracle managed his feature demo to make die pivot table entries editable. I discovered, that i need a pivot table with datacell and a af:switcher to manage different facets. But what about the datamodel behind this?
I use the BC in adf, but i found the hint :

"Note:
In order to temporarily or permanently write values back to a set of cells within a cube, called a writeback, the pivot table must be bound to a data control or data model that supports writeback operations. A row set based data control is transformed into a cube and therefore cannot support writeback operations."

So how do i manage this without BC to make the pivottable editable?

Thanks for help!