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## Package org.apache.lucene.facet.taxonomy.directory

Taxonomy index implementation using on top of a Directory.

See:
Description

Interface Summary
DirectoryTaxonomyWriter.OrdinalMap | Mapping from old ordinal to new ordinals, used when merging indexes wit separate taxonomies.

Class Summary
DirectoryTaxonomyReader | A `TaxonomyReader` which retrieves stored taxonomy information from a `Directory`.
DirectoryTaxonomyWriter | `TaxonomyWriter` which uses a `Directory` to store the taxonomy information on disk, and keeps an additional in-memory cache of some or all categories.
DirectoryTaxonomyWriter.DiskOrdinalMap | `DirectoryTaxonomyWriter.OrdinalMap` maintained on file system
DirectoryTaxonomyWriter.MemoryOrdinalMap | `DirectoryTaxonomyWriter.OrdinalMap` maintained in memory

## Package org.apache.lucene.facet.taxonomy.directory Description

Taxonomy index implementation using on top of a Directory.

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