Package org.apache.lucene.facet.taxonomy.writercache

Improves indexing time by caching a map of CategoryPath to their Ordinal.

See: Description

Interface Summary

Interface	Description
TaxonomyWriterCache	TaxonomyWriterCache is a relatively simple interface for a cache of category->ordinal mappings, used in TaxonomyWriter implementations (such as DirectoryTaxonomyWriter).

Class Summary

Class	Description
Cl2oTaxonomyWriterCache	TaxonomyWriterCache using CompactLabelToOrdinal.
CollisionMap	HashMap to store colliding labels.
CompactLabelToOrdinal	This is a very efficient LabelToOrdinal implementation that uses a CharBlockArray to store all labels and a configurable number of HashArrays to reference the labels.
LabelToOrdinal	Abstract class for storing Label->Ordinal mappings in a taxonomy.
LruTaxonomyWriterCache	LRU TaxonomyWriterCache - good choice for huge taxonomies.
NameHashIntCacheLRU	An an LRU cache of mapping from name to int.

Enum Summary

Enum	Description
LruTaxonomyWriterCache.LRUType	Determines cache type.

Package org.apache.lucene.facet.taxonomy.writercache Description

Improves indexing time by caching a map of CategoryPath to their Ordinal.