How to do a Multi field - Phrase search in Lucene?

Question

Title asks it all... I want to do a multi field - phrase search in Lucene.. How to do it ?

for example : I have fields as String s[] = {\"title\",\"author\"

Answer 1

1. Use MultiFieldQueryParser, its a QueryParser which constructs queries to search multiple fields..

2. Other way is to use Create a BooleanQuery consisting of TermQurey (in your case phrase query).

3. Third way is to include the content of other fields into your default content field.

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Add

Generally speaking, querying on multiple fields isn’t the best practice for user-entered queries. More commonly, all words you want searched are indexed into a contents or keywords field by combining various fields.

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Update

Usage:

Query query = MultiFieldQueryParser.parse(Version.LUCENE_30, new String[] {"harry potter","harry potter","harry potter"},   new String[] {"title","author","content"},new SimpleAnalyzer());
IndexSearcher searcher = new IndexSearcher(...);
Hits hits = searcher.search(query);

The MultiFieldQueryParser will resolve the query in this way: (See javadoc)

Parses a query which searches on the fields specified. If x fields are specified, this effectively constructs:

(field1:query1) (field2:query2) (field3:query3)...(fieldx:queryx)

Hope this helps.

Answer 2

intensified googling revealed this :
http://lucene.472066.n3.nabble.com/Phrase-query-on-multiple-fields-td2292312.html.
Since it is latest and best, I'll go with his approach I guess.. Nevertheless, it might help someone who is looking for something like I am...