com.browseengine.bobo.query
Class RecencyBoostScorerBuilder

java.lang.Object
  com.browseengine.bobo.query.RecencyBoostScorerBuilder

All Implemented Interfaces:

ScorerBuilder

public class RecencyBoostScorerBuilder
extends Object
implements ScorerBuilder

Constructor Summary

RecencyBoostScorerBuilder(String timeFacetName, float maxFactor, long from, long cutoff, TimeUnit timeunit)

RecencyBoostScorerBuilder(String timeFacetName, float maxFactor, long cutoff, TimeUnit timeunit)

Method Summary

protected float	computeTimeFactor(long timeVal)
org.apache.lucene.search.Scorer	createScorer(org.apache.lucene.search.Scorer innerScorer, org.apache.lucene.index.IndexReader reader, boolean scoreDocsInOrder, boolean topScorer)
org.apache.lucene.search.Explanation	explain(org.apache.lucene.index.IndexReader reader, int doc, org.apache.lucene.search.Explanation innerExplaination)

Methods inherited from class java.lang.Object

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

Constructor Detail

RecencyBoostScorerBuilder

public RecencyBoostScorerBuilder(String timeFacetName,
                                 float maxFactor,
                                 long cutoff,
                                 TimeUnit timeunit)

RecencyBoostScorerBuilder

public RecencyBoostScorerBuilder(String timeFacetName,
                                 float maxFactor,
                                 long from,
                                 long cutoff,
                                 TimeUnit timeunit)

Method Detail

explain

public org.apache.lucene.search.Explanation explain(org.apache.lucene.index.IndexReader reader,
                                                    int doc,
                                                    org.apache.lucene.search.Explanation innerExplaination)
                                             throws IOException

Specified by:

explain in interface ScorerBuilder

Throws:

IOException

createScorer

public org.apache.lucene.search.Scorer createScorer(org.apache.lucene.search.Scorer innerScorer,
                                                    org.apache.lucene.index.IndexReader reader,
                                                    boolean scoreDocsInOrder,
                                                    boolean topScorer)
                                             throws IOException

Specified by:

createScorer in interface ScorerBuilder

Throws:

IOException

computeTimeFactor

protected float computeTimeFactor(long timeVal)