Package org.apache.lucene.facet.search.aggregator

Aggregating Facets during Faceted Search A facets aggregator is the parallel of Lucene's Collector.

See: Description

Interface Summary

Interface	Description
Aggregator	An Aggregator is the analogue of Lucene's Collector (see Collector), for processing the categories belonging to a certain document.

Class Summary

Class	Description
ComplementCountingAggregator	A CountingAggregator used during complement counting.
CountingAggregator	A CountingAggregator updates a counter array with the size of the whole taxonomy, counting the number of times each category appears in the given set of documents.
ScoringAggregator	An Aggregator which updates the weight of a category according to the scores of the documents it was found in.

Package org.apache.lucene.facet.search.aggregator Description

Aggregating Facets during Faceted Search

A facets aggregator is the parallel of Lucene's Collector. While Collector collected matching documents, an aggregator aggregates facets of a matching document.