Lucene – scoring direct hits

Lucene – scoring direct hits
Check out the Similarity class in Lucene and call searcher.explain() on your document to find out the reason for the score. What you want to do is to boost a direct match.

//where fieldName is 'name' or 'description'

Query tmpQuery = new TermQuery(new Term(fieldName, searchString));

//boost the direct match

tmpQuery.setBoost(2.0f);

query.add(tmpQuery, BooleanClause.Occur.SHOULD);

 

//search for other occurences

tmpQuery = new WildcardQuery(new Term(fieldName, "*" + searchString + "*"));

query.add(tmpQuery, BooleanClause.Occur.SHOULD);

Please read full article from Lucene – scoring direct hits