org.apache.lucene.search.payloads
Class PayloadNearQuery.PayloadNearSpanScorer

java.lang.Object
  org.apache.lucene.search.DocIdSetIterator
      org.apache.lucene.index.DocsEnum
          org.apache.lucene.search.Scorer
              org.apache.lucene.search.spans.SpanScorer
                  org.apache.lucene.search.payloads.PayloadNearQuery.PayloadNearSpanScorer

Enclosing class:

PayloadNearQuery

public class PayloadNearQuery.PayloadNearSpanScorer
extends SpanScorer

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.search.Scorer

Scorer.ChildScorer

Field Summary

protected float

payloadScore

Fields inherited from class org.apache.lucene.search.spans.SpanScorer

doc, docScorer, freq, more, numMatches

Fields inherited from class org.apache.lucene.search.Scorer

weight

Fields inherited from class org.apache.lucene.index.DocsEnum

FLAG_FREQS, FLAG_NONE

Fields inherited from class org.apache.lucene.search.DocIdSetIterator

NO_MORE_DOCS

Constructor Summary

protected

PayloadNearQuery.PayloadNearSpanScorer(Spans spans, Weight weight, Similarity similarity, Similarity.SimScorer docScorer)

Method Summary

void	getPayloads(Spans[] subSpans)
protected void	processPayloads(Collection<byte[]> payLoads, int start, int end) By default, uses the PayloadFunction to score the payloads, but can be overridden to do other things.
float	score() Returns the score of the current document matching the query.
protected boolean	setFreqCurrentDoc()

Methods inherited from class org.apache.lucene.search.spans.SpanScorer

advance, cost, docID, freq, nextDoc, sloppyFreq

Methods inherited from class org.apache.lucene.search.Scorer

getChildren, getWeight, score, score

Methods inherited from class org.apache.lucene.index.DocsEnum

attributes

Methods inherited from class org.apache.lucene.search.DocIdSetIterator

empty, slowAdvance

Methods inherited from class java.lang.Object

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

Field Detail

payloadScore

protected float payloadScore

Constructor Detail

PayloadNearQuery.PayloadNearSpanScorer

protected PayloadNearQuery.PayloadNearSpanScorer(Spans spans,
                                                 Weight weight,
                                                 Similarity similarity,
                                                 Similarity.SimScorer docScorer)
                                          throws IOException

Throws:

IOException

Method Detail

getPayloads

public void getPayloads(Spans[] subSpans)
                 throws IOException

Throws:

IOException

processPayloads

protected void processPayloads(Collection<byte[]> payLoads,
                               int start,
                               int end)

By default, uses the PayloadFunction to score the payloads, but can be overridden to do other things.

Parameters:

payLoads - The payloads

start - The start position of the span being scored

end - The end position of the span being scored

See Also:

Spans

setFreqCurrentDoc

protected boolean setFreqCurrentDoc()
                             throws IOException

Overrides:

setFreqCurrentDoc in class SpanScorer

Throws:

IOException

score

public float score()
            throws IOException

Description copied from class: Scorer

Returns the score of the current document matching the query. Initially invalid, until DocIdSetIterator.nextDoc() or DocIdSetIterator.advance(int) is called the first time, or when called from within Collector.collect(int).

Overrides:

score in class SpanScorer

Throws:

IOException