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Date: Mon, 31 May 2010 10:27:04 +0400
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Subject: DuplicateFilter question
From: =?KOI8-R?B?8MHbwSDtyc7exc7Lz9c=?= <chardex@gmail.com>
To: java-user@lucene.apache.org
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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 =3D new DuplicateFilter(KEY_FIELD);
	df.setKeepMode(DuplicateFilter.KM_USE_LAST_OCCURRENCE);

	Query q =3D 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 =3D searcher.search(q, df, 1000).scoreDocs;
=09
	assertTrue("Filtered searching should have found some matches",
hits.length > 0);
	for (int i =3D 0; i < hits.length; i++) {
	Document d =3D searcher.doc(hits[i].doc);
	String url =3D d.get(KEY_FIELD);
	TermDocs td =3D reader.termDocs(new Term(KEY_FIELD, url));
	int lastDoc =3D 0;
	while (td.next()) {
	lastDoc =3D td.doc();
	}
	assertEquals("Duplicate urls should return last doc", lastDoc, hits[i].doc=
);
	}
}

--=20
=F3 =D5=D7=C1=D6=C5=CE=C9=C5=CD,
=ED=C9=CE=DE=C5=CE=CB=CF=D7 =F0=C1=D7=C5=CC

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