Class ValueCountAggregator

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable, org.apache.lucene.search.Collector, Releasable

    public class ValueCountAggregator
    extends NumericMetricsAggregator.SingleValue
    A field data based aggregator that counts the number of values a specific field has within the aggregation context. This aggregator works in a multi-bucket mode, that is, when serves as a sub-aggregator, a single aggregator instance aggregates the counts for all buckets owned by the parent aggregator)