Module org.elasticsearch.compute

Package org.elasticsearch.compute.aggregation

Class FirstExponentialHistogramByTimestampAggregator

java.lang.Object

org.elasticsearch.compute.aggregation.FirstExponentialHistogramByTimestampAggregator

public class FirstExponentialHistogramByTimestampAggregator
extends Object

A time-series aggregation function that collects the first occurrence exponential histogram of a time series in a specified interval.

Constructor Summary

Constructors

Constructor	Description
FirstExponentialHistogramByTimestampAggregator()

Method Summary

Modifier and Type	Method	Description
static void	combine(ExponentialHistogramStates.WithLongGroupingState current, int groupId, ExponentialHistogram value, long timestamp)
static void	combine(ExponentialHistogramStates.WithLongSingleState current, ExponentialHistogram value, long timestamp)
static void	combineIntermediate(ExponentialHistogramStates.WithLongGroupingState current, int groupId, long timestamp, ExponentialHistogram value, boolean seen)
static void	combineIntermediate(ExponentialHistogramStates.WithLongSingleState current, long timestamp, ExponentialHistogram value, boolean seen)
static String	describe()
static Block	evaluateFinal(ExponentialHistogramStates.WithLongGroupingState state, IntVector selected, GroupingAggregatorEvaluationContext ctx)
static Block	evaluateFinal(ExponentialHistogramStates.WithLongSingleState current, DriverContext ctx)
static ExponentialHistogramStates.WithLongGroupingState	initGrouping(DriverContext driverContext)
static ExponentialHistogramStates.WithLongSingleState	initSingle(DriverContext driverContext)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

FirstExponentialHistogramByTimestampAggregator

public FirstExponentialHistogramByTimestampAggregator()

Method Details

describe

public static String describe()

initSingle

public static ExponentialHistogramStates.WithLongSingleState initSingle(DriverContext driverContext)

combine

public static void combine(ExponentialHistogramStates.WithLongSingleState current,
 ExponentialHistogram value,
 long timestamp)

combineIntermediate

public static void combineIntermediate(ExponentialHistogramStates.WithLongSingleState current,
 long timestamp,
 ExponentialHistogram value,
 boolean seen)

evaluateFinal

public static Block evaluateFinal(ExponentialHistogramStates.WithLongSingleState current,
 DriverContext ctx)

initGrouping

public static ExponentialHistogramStates.WithLongGroupingState initGrouping(DriverContext driverContext)

combine

public static void combine(ExponentialHistogramStates.WithLongGroupingState current,
 int groupId,
 ExponentialHistogram value,
 long timestamp)

combineIntermediate

public static void combineIntermediate(ExponentialHistogramStates.WithLongGroupingState current,
 int groupId,
 long timestamp,
 ExponentialHistogram value,
 boolean seen)

evaluateFinal

public static Block evaluateFinal(ExponentialHistogramStates.WithLongGroupingState state,
 IntVector selected,
 GroupingAggregatorEvaluationContext ctx)