lucene.net - Using Lucene when indexing I boost certain documents, but their score at search is still 1 -

i trying boost documents. dont boosted. please tell me missing. thanks!

in index code have:

if (mycondition)   {    mydocument.setboost(1.1f); } myindexwriter.adddocument(document); 

then in search code retrieve collection of documents scoredocs object mydocuments collection and:

    foreach (lucene.net.documents.document doc in mydocuments)     {         float tempboost = doc.getboost();     } 

and place breakpoint in foreach clause break if tempboost not 1. , breakpoint never hit.

what did miss?

many thanks!

from javadoc of lucene (java version same behaviors apply):

public float getboost()

returns, at indexing time, boost factor set setboost(float).

note once document indexed value no longer available index. @ search time, retrieved documents, method returns 1. not mean boost value set @ indexing time ignored - combined other indexing time factors , stored elsewhere, better indexing , search performance.