> I'm no QueryParser expert, but I would probably start w/ the default
> query parser in Solr (LuceneQParser), and then progress a bit to the
> DisMax one. I'd ask specific questions based on what you see there.
> If you get far enough along, you may consider asking for help on the
> java-user list as well.
Thanks - I think I've got it working now. I ended up subclassing QueryParser
and overriding newTermQuery() to create a BoostingTermQuery instead of a plain
ol' TermQuery. Seems to work.
> > Yup - I'm pretty sure I have that side figured out. My input
> > contains terms marked up with a score (ie 'software?7') I just
> > needed to create a TokenFilter that parses out the suffix and sets
> > the Payload on the token.
>
> Cool. Patch?
Not sure how valuable it is - all I did was create a new subclass of
TokenFilter. Here's the code fwiw:
public class ScorePayloadFilter extends TokenFilter {
protected ScorePayloadFilter(TokenStream input) {
super(input);
}
public Token next(Token in) throws IOException {
Token nextToken = input.next(in);
if ( nextToken != null )
{
char[] buf = nextToken.termBuffer();
int termLen = nextToken.termLength();
int posn = -1;
for ( int i=0; i < termLen; i++ )
if ( buf[i] == '?' )
posn = i;
if ( posn > 0 )
{
int scorepos = posn + 1;
String score = new String(buf, scorepos,
termLen - scorepos);
Integer scoreInt = new Integer(score);
Payload payload = new Payload();
byte[] payloadBytes = new byte[4];
payload.setData(PayloadHelper.encodeInt(scoreInt, payloadBytes, 0));
nextToken.setPayload(payload);
nextToken.setTermLength(posn);
}
}
return nextToken;
}
}
Thanks again for the help!
-Ken
