Sum (Storm 2.7.1 API)

java.lang.Object
- org.apache.storm.trident.operation.builtin.Sum

All Implemented Interfaces:

Serializable, CombinerAggregator<Number>
```
public class Sum
extends Object
implements CombinerAggregator<Number>
```
See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

Sum()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Number`	`combine(Number val1, Number val2)`
`Number`	`init(TridentTuple tuple)`
`Number`	`zero()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Sum
```
public Sum()
```
- Method Detail
  - init
```
public Number init(TridentTuple tuple)
```
    Specified by:
    
    init in interface CombinerAggregator<Number>
  - combine
```
public Number combine(Number val1,
                      Number val2)
```
    Specified by:
    
    combine in interface CombinerAggregator<Number>
  - zero
```
public Number zero()
```
    Specified by:
    
    zero in interface CombinerAggregator<Number>