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From "Uwe Schindler" <...@thetaphi.de>
Subject RE: DuplicateFilter question
Date Mon, 31 May 2010 06:40:03 GMT
Where is df (the DuplicateFilter) used in your code?

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de

> -----Original Message-----
> From: Паша Минченков [mailto:chardex@gmail.com]
> Sent: Monday, May 31, 2010 8:27 AM
> To: java-user@lucene.apache.org
> Subject: DuplicateFilter question
> 
> Hi,
> 
> Why DuplicateFilter doesn't work together with other filters? For example,
if
> a little remake of the test DuplicateFilterTest, then the impression that
the
> filter is not applied to other filters and first trims results:
> 
> public void testKeepsLastFilter()
> 	throws Throwable {
> 	DuplicateFilter df = new DuplicateFilter(KEY_FIELD);
> 	df.setKeepMode(DuplicateFilter.KM_USE_LAST_OCCURRENCE);
> 
> 	Query q = new ConstantScoreQuery(new ChainedFilter(new Filter[]{
> 	new QueryWrapperFilter(tq),
> 	// new QueryWrapperFilter(new TermQuery(new Term("text",
> "out"))), // works right, it is the last document.
> 	new QueryWrapperFilter(new TermQuery(new Term("text",
> "now"))) // why it doesn't work? It is the third document.
> 
> 	}, ChainedFilter.AND));
> 
> 	ScoreDoc[] hits = searcher.search(q, df, 1000).scoreDocs;
> 
> 	assertTrue("Filtered searching should have found some matches",
> hits.length > 0);
> 	for (int i = 0; i < hits.length; i++) {
> 	Document d = searcher.doc(hits[i].doc);
> 	String url = d.get(KEY_FIELD);
> 	TermDocs td = reader.termDocs(new Term(KEY_FIELD, url));
> 	int lastDoc = 0;
> 	while (td.next()) {
> 	lastDoc = td.doc();
> 	}
> 	assertEquals("Duplicate urls should return last doc", lastDoc,
> hits[i].doc);
> 	}
> }
> 
> --
> С уважением,
> Минченков Павел
> 
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