# Uses of Package
org.apache.solr.util.hll

- Packages that use org.apache.solr.util.hll
  Package | Description
  --- | ---
  org.apache.solr.handler.component | `SearchComponent` implementations for use in `SearchHandler`
  org.apache.solr.search.facet | APIs and classes for the JSON Facet API.
  org.apache.solr.util.hll | A fork of Java-HyperLogLog package tweaked not to depend on fastutil and with cleanups to make it lean and clean.

- Classes in org.apache.solr.util.hll used by org.apache.solr.handler.component
  Class and Description
  HLL A probabilistic set of hashed `long` elements.

- Classes in org.apache.solr.util.hll used by org.apache.solr.search.facet
  Class and Description
  HLL A probabilistic set of hashed `long` elements.

- Classes in org.apache.solr.util.hll used by org.apache.solr.util.hll
  Class and Description
  HLL A probabilistic set of hashed `long` elements.
  HLLType The types of algorithm/data structure that `HLL` can utilize.
  ISchemaVersion A serialization schema for HLLs.
  IWordDeserializer Reads 'words' of a fixed width, in sequence, from a byte array.

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