how to get an extra count

[Brisbart Franck]

Hi all,

I'm trying to gather information about my non-searched (ie not used for the search) fields.
Let's take an index with 2 fields: 'artist' (for the artist name) an 'type' (for his type of music).
I need to perform a search on the 'artist' field to retrieve a list of artists matching the query. But I also need to have the number of artists per 'type'.
My first solution was to write a HitCollector which do the work:
public void collect(int doc, float score) {
Document document = indexReader_.document(doc);
if(document.get("type").equals("Rock"))
nbRock++;
...
}
But, as I first get the document to analyze my non-searched field, the treatment can be very long for searches with lots of results.

Is there any better(=faster) method to have this extra info ??

Thanks a lot for your help.
Franck


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