Hello,
Thanks for your replies. I'm sorry but I couldn't get one of David's or Uwe's
solution to work.
For the QueryParser, I tried :
QueryParser parser = new QueryParser("denominator", new StandardAnalyzer());
Query bq = new BooleanQuery();
try {
bq = parser.parse("+denominator:([10000 TO 10000] OR [20000 TO
20000])");
} catch (ParseException pe) {
Log.error(Geonet.SEARCH_ENGINE, "\n\nQueryParser.parse exception\n" +
pe + "\n\n");
}
BooleanClause.Occur scaleOccur =
LuceneUtils.convertRequiredAndProhibitedToOccur(true, false);
BooleanClause scaleRangeClause = new BooleanClause(bq, scaleOccur);
query.add(scaleRangeClause);
With TermRangeQuery :
BooleanClause.Occur scaleOccur =
LuceneUtils.convertRequiredAndProhibitedToOccur(true, false);
String term1 = "10000", term2 = "50000";
BooleanQuery bq = new BooleanQuery();
bq.add(new TermRangeQuery(LuceneIndexField.SCALE, term1, term1, true, true),
BooleanClause.Occur.SHOULD);
bq.add(new TermRangeQuery(LuceneIndexField.SCALE, term2, term2, true, true),
BooleanClause.Occur.SHOULD);
BooleanClause scaleRangeClause = new BooleanClause(bq, scaleOccur);
query.add(scaleRangeClause);
I also tried with Uwe's code for the deprecated RangeQuery.
The result I get is always the same :
+((+denominator:[10000 TO 10000] +denominator:[50000 TO 50000])~1)
which doesn't work, neither deployed on the server or in Luke. The queries that
works in Luke are
+denominator:([10000 TO 10000] OR [50000 TO 50000]) or
+denominator:([10000 TO 10000] [50000 TO 50000])
A little more background information :
* The field denominator is indexed alphabetically. If it was indexed
numerically, I'd be fine with a simple NumericRangeQuery [10000 TO 50000] but I
don't have the time to change the way it is indexed (it will be for the next
release).
* If you have a solution where denominator takes a single value and not a
range (like +denominator:(10000 OR 50000)), that is probably what I'm looking
for.
* I have to insert this query in a global query, hence the last line
query.add(scaleRangeClause);
* The deprecated RangeQuery is used everywhere in the code I'm modifying, so I
didn't try to replace it with TermRangeQuery and NumericRangeQuery.
Would you have another hint ?
Alain
----- Mail original -----
De: "David Fertig" <[email protected]>
À: [email protected]
Envoyé: Vendredi 5 Novembre 2010 16:43:42
Objet: RE: RangeQuery with multiple ranges ?
You can use a query parser to parse your text query into the appropriate query
objects.
----- Mail original -----
De: "Uwe Schindler" <[email protected]>
À: [email protected]
Envoyé: Vendredi 5 Novembre 2010 16:52:58
Objet: RE: RangeQuery with multiple ranges ?
Why do you use such complicated stuff to build the BQ?
Term term1 = new Term(LuceneIndexField.SCALE, "10000");
Term term2 = new Term(LuceneIndexField.SCALE, "50000");
BooleanQuery bq = new BooleanQuery();
bq.add(new RangeQuery(term1, term1, true), BooleanClause.Occur.SHOULD);
bq.add(new RangeQuery(term2, term2, true), BooleanClause.Occur.SHOULD);
By the way, your code is outdated, you should better use NumericRangeQuery for
numerics! Else RangeQuery is deprecated and replaced by TermRangeQuery:
String term1 = "10000", term2 = "50000";
BooleanQuery bq = new BooleanQuery();
bq.add(new TermRangeQuery(LuceneIndexField.SCALE, term1, term1, true, true),
BooleanClause.Occur.SHOULD);
bq.add(new TermRangeQuery(LuceneIndexField.SCALE, term2, term2, true, true),
BooleanClause.Occur.SHOULD);
Uwe
-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: [email protected]
> -----Original Message-----
> From: Alain Camus [mailto:[email protected]]
> Sent: Friday, November 05, 2010 4:26 PM
> To: [email protected]
> Subject: RangeQuery with multiple ranges ?
>
> Hello list,
>
> I'm new to lucene, trying to find out if this is possible :
>
> In Luke, I can write a query that gets me the results I want, that is :
> +denominator:([10000 TO 10000] OR [20000 TO 20000])
>
> I'd like to write the same in java. I tried the next code but it doesn't work
> :
> BooleanClause.Occur scaleOccur =
> LuceneUtils.convertRequiredAndProhibitedToOccur(true, false);
> Term term1 = new Term(LuceneIndexField.SCALE, "10000");
> Term term2 = new Term(LuceneIndexField.SCALE, "50000");
> RangeQuery rangeQuery1 = new RangeQuery(term1, term1, true);
> RangeQuery rangeQuery2 = new RangeQuery(term2, term2, true);
> BooleanQuery booleanQuery = new BooleanQuery();
> booleanQuery .setMinimumNumberShouldMatch(1);
> booleanQuery .add(rangeQuery1, scaleOccur);
> booleanQuery .add(rangeQuery2, scaleOccur);
> BooleanClause scaleRangeClause = new BooleanClause(bq, scaleOccur);
> query.add(scaleRangeClause);
> The resulting query doesn't give me the expected results :
> +((+denominator:[10000 TO 10000] +denominator:[50000 TO 50000])~1)
>
> Is it possible to do what I want ? Any documentation I could read about this ?
>
> Alain
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