org.apache.druid.query.aggregation

Class StringColumnLongAggregatorWrapper

java.lang.Object

org.apache.druid.query.aggregation.DelegatingAggregator

org.apache.druid.query.aggregation.StringColumnLongAggregatorWrapper

All Implemented Interfaces:

Closeable, AutoCloseable, Aggregator

public class StringColumnLongAggregatorWrapper
extends DelegatingAggregator

This class can be used to wrap Long Aggregator that consume long 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
StringColumnLongAggregatorWrapper(BaseObjectColumnValueSelector selector, Function<BaseLongColumnValueSelector,Aggregator> delegateBuilder, long nullValue)

Method Summary

Modifier and Type	Method and Description
void	aggregate() Performs aggregation.

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

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

aggregateWithSize

Constructor Detail

StringColumnLongAggregatorWrapper

public StringColumnLongAggregatorWrapper(BaseObjectColumnValueSelector selector,
                                         Function<BaseLongColumnValueSelector,Aggregator> delegateBuilder,
                                         long nullValue)

Method Detail

aggregate

public void aggregate()

Description copied from interface: Aggregator

Performs aggregation.

Specified by:

aggregate in interface Aggregator

Overrides:

aggregate in class DelegatingAggregator