get the total number of hits of a query

[jm]

Hi,

I need to find out how many hits a query will get, is this a valid
way? (Lucene 3.0)

        Query lucquery = ...;
        IndexSearcher[] indexes = ...
        MultiSearcher ms = new MultiSearcher(indexes);
        TopDocs tp = ms.search(lucquery, Integer.MAX_VALUE);
        int hits = tp.totalHits;

Then depending on the number of hits I will run it again to get all
results or not.

I have found some posts talking about something similar but I could
not see a clear answer...

thanks
javi

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