org.apache.druid.query.aggregation

Class StringColumnDoubleAggregatorWrapper

java.lang.Object

org.apache.druid.query.aggregation.DelegatingAggregator

org.apache.druid.query.aggregation.StringColumnDoubleAggregatorWrapper

All Implemented Interfaces:

Closeable, AutoCloseable, Aggregator

public class StringColumnDoubleAggregatorWrapper
extends DelegatingAggregator

This class can be used to wrap Double Aggregator that consume double type columns to handle String type.

Field Summary

Fields inherited from class org.apache.druid.query.aggregation.DelegatingAggregator

delegate

Constructor Summary

Constructors

Constructor and Description
StringColumnDoubleAggregatorWrapper(BaseObjectColumnValueSelector selector, Function<BaseDoubleColumnValueSelector,Aggregator> delegateBuilder, double nullValue)

Method Summary

Modifier and Type	Method and Description
void	aggregate()

Methods inherited from class org.apache.druid.query.aggregation.DelegatingAggregator

close, get, getDouble, getFloat, getLong, isNull

Methods inherited from class java.lang.Object

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

Constructor Detail

StringColumnDoubleAggregatorWrapper

public StringColumnDoubleAggregatorWrapper(BaseObjectColumnValueSelector selector,
                                           Function<BaseDoubleColumnValueSelector,Aggregator> delegateBuilder,
                                           double nullValue)

Method Detail

aggregate

public void aggregate()

Specified by:

aggregate in interface Aggregator

Overrides:

aggregate in class DelegatingAggregator