org.apache.lucene.search

Class SortRescorer

java.lang.Object

org.apache.lucene.search.Rescorer

org.apache.lucene.search.SortRescorer

public class SortRescorer
extends Rescorer

A Rescorer that re-sorts according to a provided Sort.

Constructor Summary

Constructors

Constructor and Description
SortRescorer(Sort sort) Sole constructor.

Method Summary

Methods

Modifier and Type	Method and Description
Explanation	explain(IndexSearcher searcher, Explanation firstPassExplanation, int docID) Explains how the score for the specified document was computed.
TopDocs	rescore(IndexSearcher searcher, TopDocs firstPassTopDocs, int topN) Rescore an initial first-pass TopDocs.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SortRescorer

public SortRescorer(Sort sort)

Sole constructor.

Method Detail

rescore

public TopDocs rescore(IndexSearcher searcher,
              TopDocs firstPassTopDocs,
              int topN)
                throws IOException

Description copied from class: Rescorer

Rescore an initial first-pass TopDocs.

Specified by:

rescore in class Rescorer

Parameters:

searcher - IndexSearcher used to produce the first pass topDocs

firstPassTopDocs - Hits from the first pass search. It's very important that these hits were produced by the provided searcher; otherwise the doc IDs will not match!

topN - How many re-scored hits to return

Throws:

IOException

explain

public Explanation explain(IndexSearcher searcher,
                  Explanation firstPassExplanation,
                  int docID)
                    throws IOException

Description copied from class: Rescorer

Explains how the score for the specified document was computed.

Specified by:

explain in class Rescorer

Throws:

IOException