## Uses of Class
org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter

- Packages that use DirectoryTaxonomyWriter
  Package | Description
  --- | ---
  org.apache.lucene.facet.taxonomy | Taxonomy of Categories.
  org.apache.lucene.facet.taxonomy.directory | Taxonomy index implementation using on top of a Directory.

- - ### Uses of DirectoryTaxonomyWriter in org.apache.lucene.facet.taxonomy

    Methods in org.apache.lucene.facet.taxonomy with parameters of type DirectoryTaxonomyWriter
    Modifier and Type | Method | Description
    --- | --- | ---
    `static void` | TaxonomyMergeUtils.`merge​(Directory srcIndexDir, Directory srcTaxoDir, DirectoryTaxonomyWriter.OrdinalMap map, IndexWriter destIndexWriter, DirectoryTaxonomyWriter destTaxoWriter, FacetsConfig srcConfig)` | Merges the given taxonomy and index directories and commits the changes to the given writers.

    Constructors in org.apache.lucene.facet.taxonomy with parameters of type DirectoryTaxonomyWriter
    Constructor | Description
    --- | ---
    `SearcherTaxonomyManager​(IndexWriter writer, boolean applyAllDeletes, SearcherFactory searcherFactory, DirectoryTaxonomyWriter taxoWriter)` | Expert: creates near-real-time searcher and taxonomy reader from the corresponding writers, controlling whether deletes should be applied.
    `SearcherTaxonomyManager​(IndexWriter writer, SearcherFactory searcherFactory, DirectoryTaxonomyWriter taxoWriter)` | Creates near-real-time searcher and taxonomy reader from the corresponding writers.

  - ### Uses of DirectoryTaxonomyWriter in org.apache.lucene.facet.taxonomy.directory

    Subclasses of DirectoryTaxonomyWriter in org.apache.lucene.facet.taxonomy.directory
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `ReindexingEnrichedDirectoryTaxonomyWriter` | Use this `TaxonomyWriter` to append arbitrary fields to the ordinal documents in the taxonomy.

    Constructors in org.apache.lucene.facet.taxonomy.directory with parameters of type DirectoryTaxonomyWriter
    Constructor | Description
    --- | ---
    `DirectoryTaxonomyReader​(DirectoryTaxonomyWriter taxoWriter)` | Opens a `DirectoryTaxonomyReader` over the given `DirectoryTaxonomyWriter` (for NRT).