Hi, Based on everything I read so far, FunctionScoreQuery is the way forward for boosting.
My problem is, even though CustomScoreQuery's documentation suggests that FunctionScoreQuery should be used instead, I cannot find a way to use FunctionScoreQuery in the same way I can use CustomScoreQuery. Specifically, getCustomScopeProvider method of FunctionScoreQuery allows me to provide custom score logic which provides access to document identifier, which then lets me apply document specific logic. I could not find a way to do the same using FunctionScoreQuery. I looked at various ways of building a DoubleValuesSource but I simply got lost in the documentation and codebase. My guess is there should be a way to wrap the per document scoring logic as a DoubleValuesSource. Am I right? If so, what is the approach I should use? I have a case in which I can use a phrase query to match documents of interest but then I'd like to change their scores based on complex logic that lucene-expression would not be sufficient for. I want to use a FunctionScoreQuery to avoid use of an obselete query type, but I'm stuck. -- Sent from: http://lucene.472066.n3.nabble.com/Lucene-Java-Users-f532864.html --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
