SumAggregationFunction (Flink : Java 1.20.1-cp2 API)

java.lang.Object
- org.apache.flink.api.java.aggregation.AggregationFunction<T>
- - org.apache.flink.api.java.aggregation.SumAggregationFunction<T>

Type Parameters:

T - type of elements being summed

All Implemented Interfaces:

Serializable
```
@Internal
public abstract class SumAggregationFunction<T>
extends AggregationFunction<T>
```
Definitions of sum functions for different numerical types.

See Also:

Serialized Form

- Nested Class Summary
  
  Nested Classes
  Modifier and Type Class Description
  
  static class SumAggregationFunction.SumAggregationFunctionFactory
  Factory for SumAggregationFunction.
- Constructor Summary
  
  Constructors
  Constructor Description
  
  SumAggregationFunction()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  String toString()
  - Methods inherited from class org.apache.flink.api.java.aggregation.AggregationFunction
    aggregate, getAggregate, initializeAggregate
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - SumAggregationFunction
```
public SumAggregationFunction()
```
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object