org.apache.calcite.profile

Class ProfilerImpl.HllSingletonCollector

java.lang.Object

org.apache.calcite.profile.ProfilerImpl.Collector

org.apache.calcite.profile.ProfilerImpl.HllCollector

org.apache.calcite.profile.ProfilerImpl.HllSingletonCollector

Enclosing class:

ProfilerImpl

static class ProfilerImpl.HllSingletonCollector
extends ProfilerImpl.HllCollector

Collector that collects one column value into a HyperLogLog sketch.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	columnOrdinal

Fields inherited from class org.apache.calcite.profile.ProfilerImpl.HllCollector

NULL_BITS, nullCount, sketch

Fields inherited from class org.apache.calcite.profile.ProfilerImpl.Collector

space

Constructor Summary

Constructors

Constructor and Description
HllSingletonCollector(ProfilerImpl.Space space, int columnOrdinal)

Method Summary

Modifier and Type	Method and Description
void	add(List<Comparable> row)

Methods inherited from class org.apache.calcite.profile.ProfilerImpl.HllCollector

add, finish

Methods inherited from class org.apache.calcite.profile.ProfilerImpl.Collector

create

Methods inherited from class java.lang.Object

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

Field Detail

columnOrdinal

final int columnOrdinal

Constructor Detail

HllSingletonCollector

HllSingletonCollector(ProfilerImpl.Space space,
                      int columnOrdinal)

Method Detail

add

public void add(List<Comparable> row)

Specified by:

add in class ProfilerImpl.Collector