# Package org.apache.lucene.facet.util

Various utilities for faceted search

See: Description

Class Summary
Class | Description
--- | ---
FacetsPayloadMigrationReader | A `FilterAtomicReader` for migrating a facets index which encodes category ordinals in a payload to `BinaryDocValues`.
MultiCategoryListIterator | Iterates over multiple `CategoryListIterator`s, consuming the provided iterators in order.
OrdinalMappingAtomicReader | A `FilterAtomicReader` for updating facets ordinal references, based on an ordinal map.
PartitionsUtils | Utilities for partitions - sizes and such
PrintTaxonomyStats | Prints how many ords are under each dimension.
ResultSortUtils | Utilities for generating facet results sorted as required
ScoredDocIdsUtils | Utility methods for Scored Doc IDs.
TaxonomyMergeUtils | Utility methods for merging index and taxonomy directories.

## Package org.apache.lucene.facet.util Description

# Various utilities for faceted search