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).
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
RangeAccumulator
public RangeAccumulator(FacetSearchParams fsp,
IndexReader reader)
getAggregator
public FacetsAggregator getAggregator()
- Description copied from class:
FacetsAccumulator
- Returns the
FacetsAggregator
to use for aggregating the categories
found in the result documents. The default implementation returns
CountingFacetsAggregator
, or FastCountingFacetsAggregator
if all categories can be decoded with DGapVInt8IntDecoder
.
- Overrides:
getAggregator
in class FacetsAccumulator
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.
- Overrides:
accumulate
in class FacetsAccumulator
- Parameters:
matchingDocs
- the documents that matched the query, per-segment.
- Throws:
IOException
requiresDocScores
public boolean requiresDocScores()
- Overrides:
requiresDocScores
in class FacetsAccumulator
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