org.elasticsearch.search.facet.histogram
Class HistogramFacetCollector

java.lang.Object
  org.apache.lucene.search.Collector
      org.elasticsearch.search.facet.collector.FacetCollector
          org.elasticsearch.search.facet.support.AbstractFacetCollector
              org.elasticsearch.search.facet.histogram.HistogramFacetCollector

public class HistogramFacetCollector
extends AbstractFacetCollector

A histogram facet collector that uses the same field as the key as well as the value.

Nested Class Summary

static class

HistogramFacetCollector.HistogramProc

Field Summary

Fields inherited from class org.elasticsearch.search.facet.support.AbstractFacetCollector

facetName, filter

Constructor Summary

HistogramFacetCollector(java.lang.String facetName, java.lang.String fieldName, long interval, HistogramFacet.ComparatorType comparatorType, SearchContext context)

Method Summary

static long	bucket(double value, long interval)
protected void	doCollect(int doc)
protected void	doSetNextReader(org.apache.lucene.index.IndexReader reader, int docBase)
Facet	facet()

Methods inherited from class org.elasticsearch.search.facet.support.AbstractFacetCollector

acceptsDocsOutOfOrder, collect, setFilter, setNextReader, setScorer

Methods inherited from class java.lang.Object

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

Constructor Detail

HistogramFacetCollector

public HistogramFacetCollector(java.lang.String facetName,
                               java.lang.String fieldName,
                               long interval,
                               HistogramFacet.ComparatorType comparatorType,
                               SearchContext context)

Method Detail

doCollect

protected void doCollect(int doc)
                  throws java.io.IOException

Specified by:

doCollect in class AbstractFacetCollector

Throws:

java.io.IOException

doSetNextReader

protected void doSetNextReader(org.apache.lucene.index.IndexReader reader,
                               int docBase)
                        throws java.io.IOException

Specified by:

doSetNextReader in class AbstractFacetCollector

Throws:

java.io.IOException

facet

public Facet facet()

Specified by:

facet in class FacetCollector

bucket

public static long bucket(double value,
                          long interval)