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

- Packages that use DirectoryTaxonomyReader
  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 DirectoryTaxonomyReader in org.apache.lucene.facet.taxonomy

    Fields in org.apache.lucene.facet.taxonomy declared as DirectoryTaxonomyReader
    Modifier and Type | Field and Description
    --- | ---
    `DirectoryTaxonomyReader` | SearcherTaxonomyManager.SearcherAndTaxonomy.`taxonomyReader` Matching point-in-time `DirectoryTaxonomyReader`.

    Constructors in org.apache.lucene.facet.taxonomy with parameters of type DirectoryTaxonomyReader
    Constructor and Description
    `SearcherAndTaxonomy(IndexSearcher searcher, DirectoryTaxonomyReader taxonomyReader)` Create a SearcherAndTaxonomy
    `SearcherTaxonomyManager(IndexReader reader, DirectoryTaxonomyReader taxoReader, SearcherFactory searcherFactory)` Creates this from already opened `IndexReader` and `DirectoryTaxonomyReader` instances.

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

    Methods in org.apache.lucene.facet.taxonomy.directory that return DirectoryTaxonomyReader
    Modifier and Type | Method and Description
    --- | ---
    `protected DirectoryTaxonomyReader` | DirectoryTaxonomyReader.`doOpenIfChanged()` Implements the opening of a new `DirectoryTaxonomyReader` instance if the taxonomy has changed.

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