You need to set the Reversed attribute on the sliceRange. I don't know
which library you are using, but it may be something like
sliceRange.setReversed(true).
Lee Parker
On Sat, May 8, 2010 at 7:36 PM, AJ Chen <ajc...@web2express.org> wrote:
> I have a column family for sorting time-uuid and expect to retrieve columns
> in descending order (i.e. latest on the top). but the following get_slice
> call returns column in ascending order. Does cassandra sort time-uuid
> column in descending order by default? Should get_slice call return the most
> recent time-uuid?
>
> <ColumnFamily CompareWith="TimeUUIDType" Name="Index"/>
>
> ColumnParent columnParent = new ColumnParent(cf);
> SlicePredicate predicate = new SlicePredicate();
> SliceRange sliceRange = new SliceRange();
> sliceRange.setStart(new byte[] {});
> sliceRange.setFinish(new byte[] {});
> sliceRange.setCount(max);
> predicate.setSlice_range(sliceRange);
> return client.get_slice(keyspace, key, columnParent, predicate,
> ConsistencyLevel.ONE);
>
> thanks,
> -aj--
>
>
