org.apache.lucene.facet.search
Class FastCountingFacetsAggregator
java.lang.Object
org.apache.lucene.facet.search.IntRollupFacetsAggregator
org.apache.lucene.facet.search.FastCountingFacetsAggregator
- All Implemented Interfaces:
- FacetsAggregator
public final class FastCountingFacetsAggregator
- extends IntRollupFacetsAggregator
A FacetsAggregator
which counts the number of times each category
appears in the given set of documents. This aggregator reads the categories
from the BinaryDocValues
field defined by
CategoryListParams.field
, and assumes that the category ordinals were
encoded with DGapVInt8IntEncoder
.
- WARNING: This API is experimental and might change in incompatible ways in the next release.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
FastCountingFacetsAggregator
public FastCountingFacetsAggregator()
aggregate
public final void aggregate(FacetsCollector.MatchingDocs matchingDocs,
CategoryListParams clp,
FacetArrays facetArrays)
throws IOException
- Description copied from interface:
FacetsAggregator
- Aggregate the facets found in the given matching documents.
- Specified by:
aggregate
in interface FacetsAggregator
- Specified by:
aggregate
in class IntRollupFacetsAggregator
- Throws:
IOException
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