On Thu, Jul 2, 2020 at 10:32 AM Diego Ceccarelli (BLOOMBERG/ LONDON) < dceccarel...@bloomberg.net> wrote:
> Vincenzo, are you talking about > https://lucene.apache.org/core/7_4_0/queries/org/apache/lucene/queries/CustomScoreQuery.html > ? > > Yep. I was just trying to figure it out how to port a class I have that extends CustomScoreQuery to solr 8 > can you plug it in using a QueryParserPlugin? > > Yep, it's what I'm doing... Now I'm trying to move the code inside the Old CustomScoreQuery->CustomScoreProvider.customScore() I see the customScore() is executed for each document. The documentation suggests to use FunctionScoreQuery and a DoubleValuesSource. So now I'm trying to create a custom DoubleValuesSource based on the old class that extends CustomScoreQuery. And inside my QueryParserPlugin, I have a Query that returns: CustomDoubleValuesSource custom = new CustomDoubleValuesSource(); return new FunctionScoreQuery(query, custom); If I'm doing right, the problem now is how to implement DoubleValuesSource -- Vincenzo D'Amore
