NumericFirstAggregator (druid-processing 28.0.0 API)

java.lang.Object
- org.apache.druid.query.aggregation.first.NumericFirstAggregator<TSelector>

All Implemented Interfaces:

Closeable, AutoCloseable, Aggregator

Direct Known Subclasses:

DoubleFirstAggregator, FloatFirstAggregator, LongFirstAggregator
```
public abstract class NumericFirstAggregator<TSelector extends BaseNullableColumnValueSelector>
extends Object
implements Aggregator
```
Base type for on heap 'first' aggregator for primitive numeric column selectors

- Constructor Summary
  
  Constructors
  Constructor Description
  
  NumericFirstAggregator(BaseLongColumnValueSelector timeSelector, TSelector valueSelector)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  void aggregate()
  Performs aggregation.
  
  void 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
    aggregateWithSize, get, getDouble, getFloat, getLong, isNull

- Constructor Detail
  - NumericFirstAggregator
```
public NumericFirstAggregator(BaseLongColumnValueSelector timeSelector,
                              TSelector valueSelector)
```
- Method Detail
  - aggregate
```
public void aggregate()
```
    Description copied from interface: Aggregator
    
    Performs aggregation.
    
    Specified by:
    
    aggregate in interface Aggregator
  - close
```
public void close()
```
    Specified by:
    
    close in interface Aggregator
    
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable