Row count without iterating over ResultScanner?

[Wojciech Langiewicz]

Hi,
I would like to know if there's a way to quickly count number of rows 
from scan result?
Right now I'm iterating over ResultScanner like this:
int count = 0;
for (Result rr = scanner.next(); rr != null; rr = scanner.next()) {
        ++count;
}
But with number of rows reaching millions this takes a while.
I tried to find something in documentation, but I didn't found anything.
I would like to use HBase API, not MR job (because this cluster only has 
HDFS and HBase installed).

Thanks for all help.

--
Wojciech Langiewicz