org.apache.calcite.adapter.druid

Class DruidQuery.JsonCardinalityAggregation

java.lang.Object

org.apache.calcite.adapter.druid.DruidQuery.JsonAggregation

org.apache.calcite.adapter.druid.DruidQuery.JsonCardinalityAggregation

All Implemented Interfaces:

DruidQuery.Json

Enclosing class:

DruidQuery

private static class DruidQuery.JsonCardinalityAggregation
extends DruidQuery.JsonAggregation

Aggregation element that calls the "cardinality" function.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) List<String>	fieldNames

Fields inherited from class org.apache.calcite.adapter.druid.DruidQuery.JsonAggregation

fieldName, name, type

Constructor Summary

Constructors

Modifier	Constructor and Description
private	JsonCardinalityAggregation(String type, String name, List<String> fieldNames)

Method Summary

Modifier and Type	Method and Description
void	write(com.fasterxml.jackson.core.JsonGenerator generator)

Methods inherited from class java.lang.Object

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

Field Detail

fieldNames

final List<String> fieldNames

Constructor Detail

JsonCardinalityAggregation

private JsonCardinalityAggregation(String type,
                                   String name,
                                   List<String> fieldNames)

Method Detail

write

public void write(com.fasterxml.jackson.core.JsonGenerator generator)
           throws IOException

Specified by:

write in interface DruidQuery.Json

Overrides:

write in class DruidQuery.JsonAggregation

Throws:

IOException