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From ku3ia <dem...@gmail.com>
Subject Re: MultiPhraseQuery:Rewrite to BooleanQuery
Date Wed, 21 Jan 2015 14:50:59 GMT
ku3ia wrote
> Hi folks!
> I have a multiphrase query, for example, from units:
> 
> Directory indexStore = newDirectory();
> RandomIndexWriter writer = new RandomIndexWriter(random(), indexStore);
> add("blueberry chocolate pie", writer);
> add("blueberry chocolate tart", writer);
> IndexReader r = writer.getReader();
> writer.close();
> 
> IndexSearcher searcher = newSearcher(r);
> MultiPhraseQuery q = new MultiPhraseQuery();
> q.add(new Term("body", "blueberry"));
> q.add(new Term("body", "chocolate"));
> q.add(new Term[] {new Term("body", "pie"), new Term("body", "tart")});
> assertEquals(2, searcher.search(q, 1).totalHits);
> r.close();
> indexStore.close();
> 
> I need to know on which phrase query will be match. Explanation doesn't
> return exact information, only that is match by this query. So can I
> rewrite this query to Boolean?, like
> 
> BooleanQuery q = new BooleanQuery();
> 
> PhraseQuery pq1 = new PhraseQuery();
> pq1.add(new Term("body", "blueberry"));
> pq1.add(new Term("body", "chocolate"));
> pq1.add(new Term("body", "pie"));
> q.add(pq1, BooleanClause.Occur.SHOULD);
> 
> PhraseQuery pq2 = new PhraseQuery();
> pq2.add(new Term("body", "blueberry"));
> pq2.add(new Term("body", "chocolate"));
> pq2.add(new Term("body", "tart"));
> q.add(pq2, BooleanClause.Occur.SHOULD);
> 
> In this case I'll exact know on which query I have a match. But main
> querstion is, Is this rewrite is equal/true?
> Thanks.
> 
> -- 
> dennis yermakov
> mailto: 

> demesg@

Any ideas?



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