Hi, I'm afraid there are no easy or straight way for your requirement. I would try create an temporary tiny index from search results on the fly in memory, and get top N terms from it by HighFreqTerms. http://lucene.apache.org/core/4_10_3/misc/org/apache/lucene/misc/HighFreqTerms.html (The logic is almost same to Luke's top N terms feature)
I have not tried ant not sure about this is practical approach in performance, just an idea... Hope for it's help Tomoko 2015-02-16 1:58 GMT+09:00 Shouvik Bardhan <sbard...@gisfederal.com>: > Apologies if I have missed it in discussions prior but I looked all over. I > looked at the Luke code and it does find high frequency terms on the entire > index. I am trying to get the top N high frequency terms in the documents > returned from a search result. I came across something called > FilterIndexReader but I don't think it is part of 4.X codebase. Any pointer > is appreciated. >
