ProfilerImpl.HllSingletonCollector (Apache Calcite API)

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 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 Description
  
  HllSingletonCollector(ProfilerImpl.Space space, int columnOrdinal)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  void add(java.util.List<java.lang.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(java.util.List<java.lang.Comparable> row)

Specified by:: add in class ProfilerImpl.Collector