Package org.apache.solr.search.stats

APIs and Classes implementing the Stats component used for document frequency calculations.

Class Summary

Class	Description
CachedSearcherStats
CollectionStats	Modifiable version of CollectionStatistics useful for aggregation of per-shard stats.
ExactSharedStatsCache
ExactStatsCache	This class implements exact caching of statistics.
ExactStatsCache.ExactStatsSource
LocalStatsCache	Default implementation that simply ignores global term statistics, and always uses local term statistics.
LocalStatsSource	Convenience class that wraps a local SolrIndexSearcher to provide local statistics.
LRUStatsCache	Unlike ExactStatsCache this implementation preserves term stats across queries in a set of LRU caches, and based on surface features of a query it determines the need to send additional RPC-s.
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.
StatsUtil	Various utilities for de/serialization of term stats and collection stats.
TermStats	Modifiable version of TermStatistics useful for aggregation of per-shard stats.