Package org.elasticsearch.search.suggest.phrase

Class WordScorer

java.lang.Object

org.elasticsearch.search.suggest.phrase.WordScorer

Direct Known Subclasses:

LinearInterpolatingScorer

public abstract class WordScorer
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	WordScorer.WordScorerFactory

Field Summary

Fields

Modifier and Type	Field	Description
protected String	field
protected long	numTerms
protected IndexReader	reader
protected double	realWordLikelihood
protected BytesRef	separator
protected BytesRefBuilder	spare
protected Terms	terms
protected long	vocabluarySize

Constructor Summary

Constructors

Constructor	Description
WordScorer(IndexReader reader, String field, double realWordLikelihood, BytesRef separator)
WordScorer(IndexReader reader, Terms terms, String field, double realWordLikelihood, BytesRef separator)

Method Summary

Modifier and Type	Method	Description
protected double	channelScore(DirectCandidateGenerator.Candidate candidate, DirectCandidateGenerator.Candidate original)
long	frequency(BytesRef term)
static BytesRef	join(BytesRef separator, BytesRefBuilder result, BytesRef... toJoin)
double	score(DirectCandidateGenerator.Candidate[] path, DirectCandidateGenerator.CandidateSet[] candidateSet, int at, int gramSize)
protected double	scoreBigram(DirectCandidateGenerator.Candidate word, DirectCandidateGenerator.Candidate w_1)
protected double	scoreTrigram(DirectCandidateGenerator.Candidate word, DirectCandidateGenerator.Candidate w_1, DirectCandidateGenerator.Candidate w_2)
protected double	scoreUnigram(DirectCandidateGenerator.Candidate word)

Methods inherited from class java.lang.Object

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

Field Detail

reader

protected final IndexReader reader

field

protected final String field

terms

protected final Terms terms

vocabluarySize

protected final long vocabluarySize

realWordLikelihood

protected final double realWordLikelihood

spare

protected final BytesRefBuilder spare

separator

protected final BytesRef separator

numTerms

protected final long numTerms

Constructor Detail

WordScorer

public WordScorer(IndexReader reader,
                  String field,
                  double realWordLikelihood,
                  BytesRef separator)
           throws IOException

Throws:

IOException

WordScorer

public WordScorer(IndexReader reader,
                  Terms terms,
                  String field,
                  double realWordLikelihood,
                  BytesRef separator)
           throws IOException

Throws:

IOException

Method Detail

frequency

public long frequency(BytesRef term)
               throws IOException

Throws:

IOException

channelScore

protected double channelScore(DirectCandidateGenerator.Candidate candidate,
                              DirectCandidateGenerator.Candidate original)
                       throws IOException

Throws:

IOException

score

public double score(DirectCandidateGenerator.Candidate[] path,
                    DirectCandidateGenerator.CandidateSet[] candidateSet,
                    int at,
                    int gramSize)
             throws IOException

Throws:

IOException

scoreUnigram

protected double scoreUnigram(DirectCandidateGenerator.Candidate word)
                       throws IOException

Throws:

IOException

scoreBigram

protected double scoreBigram(DirectCandidateGenerator.Candidate word,
                             DirectCandidateGenerator.Candidate w_1)
                      throws IOException

Throws:

IOException

scoreTrigram

protected double scoreTrigram(DirectCandidateGenerator.Candidate word,
                              DirectCandidateGenerator.Candidate w_1,
                              DirectCandidateGenerator.Candidate w_2)
                       throws IOException

Throws:

IOException

join

public static BytesRef join(BytesRef separator,
                            BytesRefBuilder result,
                            BytesRef... toJoin)