Hi Rick :)
I found the problem but I think It needs explanations.
In the code where the query was created, there was a peace of code as
following :
if(value.contains(" ")){
String[] words = value.split(" ");
PhraseQuery param = new PhraseQuery();
for (String word : words){
param.add(new Term(key,word));
}
query.add(param, BooleanClause.Occur.MUST);
return query;
}
I replaced it by :
PhraseQuery pQuery = new PhraseQuery();
pQuery.add(new Term(key, value));
query.add(pQuery, BooleanClause.Occur.MUST);
return query;
So there is no more split on the value and it is passed in the
phraseQuery in one shot.
If I dump the query with query.toString(), the result is exactly the
same, but the query with the first version of the code doesn't work
whereas the second one do.
the value is like : "/library/authors/Martin/Game of Thrones/chapter I"
So the first code split the value after Game, of and chapter and rebuilt
the entire phrase whereas the second one made the phrase with the entire
value.
But why does it provide a different result?
Regards,
Gary
Le 07/09/2011 13:15, Erick Erickson a écrit :
Nothing really jumps out, but here's an idea:
Dump query.toString() and see if it's what you
expect as the parsed query.
And make absolutely sure that the directory you open
in your Java code is the same one you open in Luke. You'd
be amazed how much time I've spent tracking down
mistakes like that<G>.
Best
Erick
"It's not the things you don't know that'll kill you, it's the things
you *do* know that aren't true".
On Wed, Sep 7, 2011 at 5:47 AM, G.Long<jde...@gmail.com> wrote:
Hi :)
I have a lucene index with fields analyzed with Keyword Analyzer. In my java
program, I search for a document by creating a query with two boolean
parameters like : +param1:"foo" +param2:"bar"
The query return no result but If I run the same query with Luke, it returns
the result I'm looking for :/
I'm using the same method to initialyze the index writer and searcher :
directory = FSDirectory.open(indexFolder);
PerFieldAnalyzerWrapper pfaWrapper = getPerfFieldAnalyzer();
IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_31,
pfaWrapper);
config.setOpenMode(OpenMode.CREATE_OR_APPEND);
iwriter = new IndexWriter(directory, config);
isearcher = new IndexSearcher(directory);
(The default analyzer for PerFieldAnalyzer is KeywordAnalyzer. I'm using it
because there are two fields in my index which use StandardAnalyzer but
these are not the ones I'm using in my query)
To create my query, I use the following code:
Analyzer analyzer = new KeywordAnalyzer();
QueryParser parser = new QueryParser(Version.LUCENE_31, key, analyzer);
Query param = parser.parse(value);
query.add(param, BooleanClause.Occur.MUST);
And then the execution of my query:
TopFieldCollector collector = TopFieldCollector.create(new
Sort(SortField.FIELD_DOC), 200000, true, false, false, false);
isearcher.search(query, collector);
ScoreDoc[] hits = collector.topDocs().scoreDocs;
Any ideas of why the query isn't returning anything although the params of
the query correspond to an existing result?
In Luke, I specify the Keyword Analyzer and it works.
Thank you for your help :)
Gary
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