org.apache.druid.query.aggregation.first

Class DoubleFirstAggregator

java.lang.Object

org.apache.druid.query.aggregation.first.NumericFirstAggregator<BaseDoubleColumnValueSelector>

org.apache.druid.query.aggregation.first.DoubleFirstAggregator

All Implemented Interfaces:

Closeable, AutoCloseable, Aggregator

public class DoubleFirstAggregator
extends NumericFirstAggregator<BaseDoubleColumnValueSelector>

Constructor Summary

Constructors

Constructor and Description
DoubleFirstAggregator(BaseLongColumnValueSelector timeSelector, BaseDoubleColumnValueSelector valueSelector)

Method Summary

Modifier and Type	Method and Description
Object	get()
double	getDouble() The default implementation casts Aggregator.getFloat() to double.
float	getFloat()
long	getLong()

Methods inherited from class org.apache.druid.query.aggregation.first.NumericFirstAggregator

aggregate, close

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.query.aggregation.Aggregator

isNull

Constructor Detail

DoubleFirstAggregator

public DoubleFirstAggregator(BaseLongColumnValueSelector timeSelector,
                             BaseDoubleColumnValueSelector valueSelector)

Method Detail

get

public Object get()

getFloat

public float getFloat()

getDouble

public double getDouble()

Description copied from interface: Aggregator

The default implementation casts Aggregator.getFloat() to double. This default method is added to enable smooth backward compatibility, please re-implement it if your aggregators work with numeric double columns.

getLong

public long getLong()