## Uses of Class
org.apache.lucene.facet.taxonomy.OrdinalsReader

Packages that use OrdinalsReader
org.apache.lucene.facet.taxonomy: Taxonomy of Categories.

### Uses of OrdinalsReader in org.apache.lucene.facet.taxonomy

Subclasses of OrdinalsReader in org.apache.lucene.facet.taxonomy
`class` `CachedOrdinalsReader` A per-segment cache of documents' facet ordinals.
`class` `DocValuesOrdinalsReader` Decodes ordinals previously indexed into a BinaryDocValues field

Methods in org.apache.lucene.facet.taxonomy that return OrdinalsReader
`protected OrdinalsReader` OrdinalMappingLeafReader.`getOrdinalsReader(String field)` Expert: override in case you used custom encoding for the categories under this field.

Constructors in org.apache.lucene.facet.taxonomy with parameters of type OrdinalsReader
Constructor and Description
`CachedOrdinalsReader(OrdinalsReader source)` Sole constructor.
`TaxonomyFacetCounts(OrdinalsReader ordinalsReader, TaxonomyReader taxoReader, FacetsConfig config, FacetsCollector fc)` Create `TaxonomyFacetCounts`, which also counts all facet labels.
`TaxonomyFacetSumValueSource(OrdinalsReader ordinalsReader, TaxonomyReader taxoReader, FacetsConfig config, FacetsCollector fc, DoubleValuesSource vs)` Aggreggates float facet values from the provided `DoubleValuesSource`, and pulls ordinals from the provided `OrdinalsReader`.