CombinerAggregator (Storm 2.7.1 API)

All Superinterfaces:

Serializable

All Known Implementing Classes:

Count, Sum, TridentReach.One
```
public interface CombinerAggregator<T>
extends Serializable
```

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  T combine(T val1, T val2)
  
  T init(TridentTuple tuple)
  
  T zero()

Method Detail

init
```
T init(TridentTuple tuple)
```

combine

T combine(T val1,
          T val2)

zero
```
T zero()
```