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Posted to dev@lucene.apache.org by "Otis Gospodnetic (JIRA)" <ji...@apache.org> on 2006/06/16 07:24:30 UTC
[jira] Resolved: (LUCENE-304) [PATCH] add boost feature to
MultiFieldQueryParser
[ http://issues.apache.org/jira/browse/LUCENE-304?page=all ]
Otis Gospodnetic resolved LUCENE-304:
-------------------------------------
Resolution: Duplicate
Assign To: (was: Lucene Developers)
I think this is a "duplicate" of LUCENE-544 .
> [PATCH] add boost feature to MultiFieldQueryParser
> --------------------------------------------------
>
> Key: LUCENE-304
> URL: http://issues.apache.org/jira/browse/LUCENE-304
> Project: Lucene - Java
> Type: Improvement
> Components: QueryParser
> Versions: 1.4
> Environment: Operating System: other
> Platform: Other
> Reporter: Nicolas Maisonneuve
> Priority: Minor
> Attachments: MultiFieldQueryParser.java
>
> add this feature
> (field1:query)^bfield1 (field2:query)^bfield12 (field3:query)^bfield3 ...
> (fieldx:query)^bfieldx
> Google Example: a user search "coco" , my defaults search fields are title and
> description. But i would like boost title field more than description field to
> have results more relevant.
> Change in the MultiFieldQueryParser : add this method
> public static Query parse(String query, String[] fields, int[] flags, float []
> boost, Analyzer analyzer) throws ParseException {
> {
> BooleanQuery bQuery = new BooleanQuery();
> for (int i = 0; i < fields.length; i++)
> {
> Query q = parse(query, fields[i], analyzer);
> ==> q.setBoost(boost[i]);
> int flag = flags[i];
> switch (flag)
> {
> case REQUIRED_FIELD:
> bQuery.add(q, BooleanClause.Occur.MUST);
> break;
> case PROHIBITED_FIELD:
> bQuery.add(q, BooleanClause.Occur.MUST_NOT);
> break;
> default:
> bQuery.add(q, BooleanClause.Occur.SHOULD);
> break;
> }
> }
> return bQuery;
> }
> }
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