Adrian Dimulescu wrote:
Hello,
I need the number of pages that contain two terms. Only the number
of hits, I don't care about retrieving the pages. Right now I am
using the following code in order to get it:
Term first, second;
TermQuery q1 = new TermQuery(first);
TermQuery q2 = new TermQuery(second);
BooleanQuery bQ = new BooleanQuery();
bQ.add(q1, Occur.MUST);
bQ.add(q2, Occur.MUST);
int hitsBoth = indexSearcher.search(bQ, null, 1).totalHits;
You could make a custom HitCollector that simply counts. But
likely this is not much faster than your call above.
For my specific needs of only getting only the hits number, not the
actual documents, this is very slow (half a second a query) on a
recent PC. Is there a faster way ?
In order to get the hits for one term, I use
indexReader.docFreq(Term) -- no actual Query. I wonder if I could do
something similar for two Terms.
Be careful: docFreq does not take deletions into account.
Mike
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