Hi,
I wanted to implement my own query, query wich will be specific to my
application. The query I want to implement is in fact just a combinaison of
sevral already implemented queries. So acheive this, I do this kind of
things :
public class MyQuery extends Query {
private Query query;
public MyQuery(String foo) {
query = new TermQuery("myfield", foo);
}
public Weight weight(Searcher searcher) throws IOException {
return query.weight(searcher);
}
public String toString(String field) {
return foo;
}
}
But I have an issue with that kind of queries : I cannot implement
createWeight() as I cannot access this function on the underlying query. So
the Query's function is used with raise a UnsupportedOperationException. For
basic search.search(query), it works. But when I want to filter it :
query = new FilteredQuery(query, filter);
search.search(query);
This raise the UnsupportedOperationException.
I just see two options there.
* make my own interface which is a factory of query. But I lost the
flexibility of extending Query. Even if I want to do a little term query, I
will have to make a factory of this term query.
* patch Lucene to make createWeight() public
any other advise ?
cheers,
Nicolas
--
Nicolas LALEVÉE
Solutions & Technologies
ANYWARE TECHNOLOGIES
Tel : +33 (0)5 61 00 52 90
Fax : +33 (0)5 61 00 51 46
http://www.anyware-tech.com
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