# Uses of Package
org.apache.lucene.facet.index

- Packages that use org.apache.lucene.facet.index
  Package | Description
  --- | ---
  org.apache.lucene.facet.associations | Allows associating arbitrary values with a category.
  org.apache.lucene.facet.index | Facets indexing code.

- Classes in org.apache.lucene.facet.index used by org.apache.lucene.facet.associations
  Class and Description
  CategoryListBuilder Builds a category list data by encoding the appropriate information for every category and ordinal given to `CategoryListBuilder.build(IntsRef, Iterable)`.
  DrillDownStream A `TokenStream` which creates category drill-down terms.
  FacetFields A utility class for adding facet fields to a document.

- Classes in org.apache.lucene.facet.index used by org.apache.lucene.facet.index
  Class and Description
  CategoryListBuilder Builds a category list data by encoding the appropriate information for every category and ordinal given to `CategoryListBuilder.build(IntsRef, Iterable)`.
  DrillDownStream A `TokenStream` which creates category drill-down terms.

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