Package org.apache.lucene.facet.taxonomy

Taxonomy of Categories

See:
Description

Interface Summary

TaxonomyWriter

TaxonomyWriter is the interface which the faceted-search library uses to dynamically build the taxonomy at indexing time.

Class Summary

CategoryPath	Holds a sequence of string components, specifying the hierarchical name of a category.
TaxonomyReader	TaxonomyReader is the read-only interface with which the faceted-search library uses the taxonomy during search time.

Package org.apache.lucene.facet.taxonomy Description

Taxonomy of Categories

Facets are defined using a hierarchy of categories, known as a Taxonomy.
For example, in a book store application, a Taxonomy could have the following hierarchy:

• Author
• Mark Twain
• J. K. Rowling

• Date
• 2010
• 2009

The Taxonomy translates category-paths into category-ordinal and vice versa.