Hi!
Why Grid#setupDataSource() is calculating endIndex and not allowing for
GridDataSource to do it? Why GridDataSource#prepare method have
startIndex and endIndex parameters and not offset/limit pair?
I'm asking, because if GridDataSource could calculate endIndex (or use
limit instead) for itself, then there would be no need to call
getAvailableRows() before prepare(), which is a problem (at least IMHO).
Then Grid#setupDataSource() could look like this:
void setupDataSource()
{
cachingSource = new CachingDataSource(source);
int startIndex = (getCurrentPage()-1) * rowsPerPage;
cachingSource.prepare(startIndex, startIndex+rowsPerPage,
sortModel.getSortConstraints());
}
This would allow for single-call (those which receive number of
available rows, columns definitions, and columns values in one expensive
call) datasources to work.
Best regards,
Przemysław Wojnowski
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