I think this fits what I'm trying to do, but have been having a heck of a
time with it.
I'm using a SingleColumnValueFilter to get rows who's cf:qual have a given
value, but would just like the key, no values. If I add that filter to a
filterList with a KeyOnlyFilter.new, I get nothing if KeyOnlyFilter is
first and everything, as if there wasn't a KeyOnlyFilter, when it's last.
I'm writing it in a ruby script.
filterList = FilterList.new
filterList.addFilter(KeyOnlyFilter.new)
filterList.addFilter(SingleColumnValueFilter.new(Bytes.toBytes(cf),
Bytes.toBytes(qualifier), CompareFilter::CompareOp.valueOf('EQUAL'),
SubstringComparator.new(string)))
scan.setCaching(2)
scan.setFilter(filterList)
result_scanner = table.getScanner(scan)
result_scanner.each do |res|
puts(res)
end
result_scanner.close
Scott
