## Uses of Interface
org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter.OrdinalMap

- Packages that use DirectoryTaxonomyWriter.OrdinalMap
  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.OrdinalMap in org.apache.lucene.facet.taxonomy

    Methods in org.apache.lucene.facet.taxonomy with parameters of type DirectoryTaxonomyWriter.OrdinalMap
    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.

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

    Classes in org.apache.lucene.facet.taxonomy.directory that implement DirectoryTaxonomyWriter.OrdinalMap
    Modifier and Type | Class | Description
    --- | --- | ---
    `static class` | `DirectoryTaxonomyWriter.DiskOrdinalMap` | `DirectoryTaxonomyWriter.OrdinalMap` maintained on file system
    `static class` | `DirectoryTaxonomyWriter.MemoryOrdinalMap` | `DirectoryTaxonomyWriter.OrdinalMap` maintained in memory

    Methods in org.apache.lucene.facet.taxonomy.directory with parameters of type DirectoryTaxonomyWriter.OrdinalMap
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | DirectoryTaxonomyWriter.`addTaxonomy​(Directory taxoDir, DirectoryTaxonomyWriter.OrdinalMap map)` | Takes the categories from the given taxonomy directory, and adds the missing ones to this taxonomy.