# Uses of Package
org.apache.solr.search.stats

- Packages that use org.apache.solr.search.stats
  Package | Description
  --- | ---
  org.apache.solr.core | Core classes implementing Solr internals and the management of `SolrCore`s
  org.apache.solr.search.stats | APIs and Classes implementing the Stats component used for document frequency calculations.

- Classes in org.apache.solr.search.stats used by org.apache.solr.core
  Class and Description
  StatsCache This class represents a cache of global document frequency information for selected terms.

- Classes in org.apache.solr.search.stats used by org.apache.solr.search.stats
  Class and Description
  CollectionStats Modifiable version of `CollectionStatistics` useful for aggregation of per-shard stats.
  ExactStatsCache This class implements exact caching of statistics.
  StatsCache This class represents a cache of global document frequency information for selected terms.
  StatsSource The purpose of this class is only to provide two pieces of information necessary to create `Weight` from a `Query`, that is `TermStatistics` for a term and `CollectionStatistics` for the whole collection.
  TermStats Modifiable version of `TermStatistics` useful for aggregation of per-shard stats.

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