org.apache.lucene.facet.range
Class RangeAccumulator

java.lang.Object
  org.apache.lucene.facet.search.FacetsAccumulator
      org.apache.lucene.facet.range.RangeAccumulator

public class RangeAccumulator
extends FacetsAccumulator

Uses a NumericDocValues and accumulates counts for provided ranges. This is dynamic (does not use the taxonomy index or anything from the index except the NumericDocValuesField).

Field Summary

Fields inherited from class org.apache.lucene.facet.search.FacetsAccumulator

searchParams

Constructor Summary

RangeAccumulator(FacetRequest... facetRequests)

RangeAccumulator(List<FacetRequest> facetRequests)

Method Summary

List<FacetResult>	accumulate(List<FacetsCollector.MatchingDocs> matchingDocs) Used by FacetsCollector to build the list of facet results that match the facet requests that were given in the constructor.
boolean	requiresDocScores() Used by FacetsCollector to determine if document scores need to be collected in addition to matching documents.

Methods inherited from class org.apache.lucene.facet.search.FacetsAccumulator

create, create, emptyResult

Methods inherited from class java.lang.Object

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

Constructor Detail

RangeAccumulator

public RangeAccumulator(FacetRequest... facetRequests)

RangeAccumulator

public RangeAccumulator(List<FacetRequest> facetRequests)

Method Detail

accumulate

public List<FacetResult> accumulate(List<FacetsCollector.MatchingDocs> matchingDocs)
                             throws IOException

Description copied from class: FacetsAccumulator

Used by FacetsCollector to build the list of facet results that match the facet requests that were given in the constructor.

Specified by:

accumulate in class FacetsAccumulator

Parameters:

matchingDocs - the documents that matched the query, per-segment.

Throws:

IOException

requiresDocScores

public boolean requiresDocScores()

Description copied from class: FacetsAccumulator

Used by FacetsCollector to determine if document scores need to be collected in addition to matching documents.

Specified by:

requiresDocScores in class FacetsAccumulator