This is a source code that shows the problem I am talking about.
In this example a new analyzer is made that outputs all words to the
same position (all but the first one are positionIncrement=0).
To get the problem I am talking about uncomment the only commented line.
//----------------------------------------------------------------
public class TestPhraseQuery {
public static void main(String[] args) {
try {
Directory ramDirectory = new RAMDirectory();
IndexWriter indexWriter = new IndexWriter(ramDirectory,
new
TestAnalyzer(),true);
Document testDocument = new Document();
testDocument.add(Field.Text("line","hello all of you"));
indexWriter.addDocument(testDocument);
indexWriter.close();
IndexSearcher indexSearcher = new
IndexSearcher(ramDirectory);
PhraseQuery query = new PhraseQuery();
query.add(new Term("line","hello"),1);
query.add(new Term("line","all"),1);
// query.add(new Term("line","huullo"),1);
Hits hits = indexSearcher.search(query);
System.out.println(hits.length());
} catch (IOException e) {
e.printStackTrace();
}
}
}
class TestAnalyzer extends StandardAnalyzer {
@Override
public TokenStream tokenStream(String fieldName, Reader reader) {
TokenStream result = super.tokenStream(fieldName, reader);
result = new TestFilter(result);
return result;
}
}
class TestFilter extends TokenFilter {
boolean first = true;
public TestFilter(TokenStream input) {
super(input);
}
@Override
public Token next() throws IOException {
Token token = input.next();
if (token == null)
return null;
if (!first) {
token.setPositionIncrement(0);
}
first = false;
return token;
}
}
//--------------------------------------------------------------------------
On 11/4/05, Erik Hatcher <[EMAIL PROTECTED]> wrote:
>
> On 4 Nov 2005, at 13:45, Daniel Naber wrote:
>
> > On Freitag 04 November 2005 11:33, Erik Hatcher wrote:
> >
> >
> >>> This should have been fixed one year ago with Daniel and myself.
> >>>
> >>
> >> Really? It works in this OR kind of fashion with tokens in 0-
> >> incremented positions?
> >>
> >
> > Yes, this test case shows it (multi will be turned into multi and
> > multi2,
> > both at the same position by the analyzer used here):
> >
> > assertEquals("+(multi multi2) +foo", qp.parse("multi foo").toString
> > ());
>
> Thanks. Sorry, I meant to send an immediate follow-up to my own
> silly question. I knew better as soon as I hit send.
>
> Erik
>
>
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>
--
regards,
Ahmed Saad
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