Package org.elasticsearch.search.aggregations.bucket.composite

Class DateHistogramValuesSource

java.lang.Object
org.elasticsearch.search.aggregations.bucket.composite.DateHistogramValuesSource
All Implemented Interfaces:
Closeable, AutoCloseable, org.elasticsearch.core.Releasable, SizedBucketAggregator
public class DateHistogramValuesSource extends Object implements SizedBucketAggregator
A SingleDimensionValuesSource for date histogram values.

  • Field Details

    • format

      protected final DocValueFormat format

    • fieldType

      @Nullable protected final MappedFieldType fieldType

    • missingBucket

      protected final boolean missingBucket

    • missingOrder

      protected final MissingOrder missingOrder

    • size

      protected final int size

    • reverseMul

      protected final int reverseMul

    • afterValue

      protected Long afterValue

  • Method Details

    • bucketSize

      public double bucketSize(long bucket, Rounding.DateTimeUnit unitSize)
      Description copied from interface: SizedBucketAggregator
      Reports size of the particular bucket in requested units.
      Specified by:
      bucketSize in interface SizedBucketAggregator

    • bucketSize

      public double bucketSize(Rounding.DateTimeUnit unitSize)
      Description copied from interface: SizedBucketAggregator
      Reports size of all buckets in requested units. Throws an exception if it is not possible to calculate without knowing the concrete bucket.
      Specified by:
      bucketSize in interface SizedBucketAggregator

    • close

      public void close()

    • checkIfSortedDocsIsApplicable

      protected boolean checkIfSortedDocsIsApplicable(org.apache.lucene.index.IndexReader reader, MappedFieldType fieldType)
      Returns true if a SortedDocsProducer should be used to optimize the execution.