NoopAggregator (druid-processing 28.0.1 API)

java.lang.Object
- org.apache.druid.query.aggregation.NoopAggregator

All Implemented Interfaces:: Closeable, AutoCloseable, Aggregator

public final class NoopAggregator
extends Object
implements Aggregator

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`aggregate()`	Performs aggregation.
`void`	`close()`
`Object`	`get()`
`double`	`getDouble()`	The default implementation casts `Aggregator.getFloat()` to double.
`float`	`getFloat()`
`long`	`getLong()`
`static NoopAggregator`	`instance()`

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, isNull

- Method Detail
  - instance
```
public static NoopAggregator instance()
```
  - aggregate
```
public void aggregate()
```
    Description copied from interface: Aggregator
    
    Performs aggregation.
    
    Specified by:
    
    aggregate in interface Aggregator
  - get
```
public Object get()
```
    Specified by:
    
    get in interface Aggregator
  - getFloat
```
public float getFloat()
```
    Specified by:
    
    getFloat in interface Aggregator
  - getLong
```
public long getLong()
```
    Specified by:
    
    getLong in interface Aggregator
  - 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.
    
    Specified by:
    
    getDouble 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