Hi Yonik,
Thanks for your reply.
In my case I don't want those document that has Null value for the field
that I am willing to sort
I tried writing my own filter using RangeFilter, but it doesn't work.
I used something like the following in my custom filter.
public class NotNullRangeFilter extends org.apache.lucene.search.Filter {
private RangeFilter rangeFilter;
public BitSet bits(IndexReader reader) throws IOException {
rangeFilter = RangeFilter.More("lastUpdatedDate"/*Field to sort*/,
"" /*atleast an empty string but not null*/);
return rangeFilter.bits(reader);
}
}
The above does not work. Let me know if I am doing something wrong.
Any inputs on this ?
Thanks,
On Tue, Oct 14, 2008 at 8:11 AM, Yonik Seeley <[EMAIL PROTECTED]> wrote:
> On Tue, Oct 14, 2008 at 4:35 AM, Reetha Hariharan <[EMAIL PROTECTED]>
> wrote:
> > I am searching using one field, say X and want to sort the results using
> > another, say Y (Which can have null values). But I am expecting Sort to
> > ignore all the null values and just sort only records that has values in
> Y
> > field.
>
> Do you want docs with null (missing) values in the results or not?
> If so, they need to go somewhere (before or after the others).
> If you don't want those docs at all, exclude them in the query, or
> with a filter.
>
> -Yonik
>
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