Lucene 3.6.0 contrib-facet API

Provides faceted indexing and search capabilities (checkout the userguide).

See: Description

Packages 
Package Description
org.apache.lucene.facet
Provides faceted indexing and search capabilities.
org.apache.lucene.facet.enhancements
Enhanced category features
org.apache.lucene.facet.enhancements.association
Association category enhancements
org.apache.lucene.facet.enhancements.params
Enhanced category features
org.apache.lucene.facet.index
Indexing of document categories
org.apache.lucene.facet.index.attributes
Category attributes and their properties for indexing
org.apache.lucene.facet.index.categorypolicy
Policies for indexing categories
org.apache.lucene.facet.index.params
Indexing-time specifications for handling facets
org.apache.lucene.facet.index.streaming
Expert: attributes streaming definition for indexing facets
org.apache.lucene.facet.search
Faceted Search API
org.apache.lucene.facet.search.aggregator
Aggregating Facets during Faceted Search
org.apache.lucene.facet.search.aggregator.association
Association-based aggregators.
org.apache.lucene.facet.search.cache
Caching to speed up facets accumulation.
org.apache.lucene.facet.search.params
Parameters for Faceted Search
org.apache.lucene.facet.search.params.association
Association-based Parameters for Faceted Search.
org.apache.lucene.facet.search.results
Results of Faceted Search
org.apache.lucene.facet.search.sampling
Sampling for facets accumulation
org.apache.lucene.facet.taxonomy
Taxonomy of Categories
org.apache.lucene.facet.taxonomy.directory
Taxonomy implemented using a Lucene-Index
org.apache.lucene.facet.taxonomy.writercache
Improves indexing time by caching a map of CategoryPath to their Ordinal
org.apache.lucene.facet.taxonomy.writercache.cl2o
Category->Ordinal caching implementation using an optimized data-structures
org.apache.lucene.facet.taxonomy.writercache.lru
An LRU cache implementation for the CategoryPath to Ordinal map
org.apache.lucene.facet.util
Various utilities for faceted search
org.apache.lucene.util  
org.apache.lucene.util.collections
Various optimized Collections implementations.
org.apache.lucene.util.encoding
Offers various encoders and decoders for integers, as well as the mechanisms to create new ones.