I've been reading the solr source code and made modifications by
implementing a custom Similarity class.
I want to implement a weight to the score by multiplying a number
based on if the current doc has certain term in it.
So if the query was q=data_text:foo
then the Similiarity class would apply a weight of :
if this.doc.containsTerm("bar")
weight = 5;
else
weight = 1;
end
I don't see how the Similarity class can get access to the doc and its
terms. Is there a way to do this?
Alternatively I could preprocess the weights and I was looking into
ExternalFileField, but I can't tell if that is the right solution.
If you use ExternalFileField it sets the rank of the results and not a
weight? It seems like ExternalFileField is only to be used for
function queries? Is it possible to sort by
product(score,weight_from_external_file_field)? I also have 10's of
millions of docs so I am not sure if this is this will work.
