Package 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:

DruidJson

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	Description
(package private) java.util.List<java.lang.String>	fieldNames

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

expression, fieldName, name, type

Constructor Summary

Constructors

Modifier	Constructor	Description
private	JsonCardinalityAggregation(java.lang.String type, java.lang.String name, java.util.List<java.lang.String> fieldNames)

Method Summary

Modifier and Type	Method	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 java.util.List<java.lang.String> fieldNames

Constructor Detail

JsonCardinalityAggregation

private JsonCardinalityAggregation(java.lang.String type,
                                   java.lang.String name,
                                   java.util.List<java.lang.String> fieldNames)

Method Detail

write

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

Specified by:

write in interface DruidJson

Overrides:

write in class DruidQuery.JsonAggregation

Throws:

java.io.IOException