IAssociativeReducer (datavec-api 1.0.0-M2.1 API)

All Superinterfaces:

Serializable

All Known Implementing Classes:

Reducer
```
public interface IAssociativeReducer
extends Serializable
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`IAggregableReduceOp<List<Writable>,List<Writable>>`	`aggregableReducer()`	An aggregation that has the property that reduce(List(reduce(List(l1, l2)), l3)) = reduce(List(l1, reduce(List(l2, l3)))
`Schema`	`getInputSchema()`
`List<String>`	`getKeyColumns()`
`void`	`setInputSchema(Schema schema)`
`Schema`	`transform(Schema schema)`

- Method Detail
  - setInputSchema
```
void setInputSchema(Schema schema)
```
    Parameters:
    
    schema -
  - getInputSchema
```
Schema getInputSchema()
```
    Returns:
  - transform
```
Schema transform(Schema schema)
```
    Parameters:
    
    schema -
    
    Returns:
  - aggregableReducer
```
IAggregableReduceOp<List<Writable>,List<Writable>> aggregableReducer()
```
    An aggregation that has the property that reduce(List(reduce(List(l1, l2)), l3)) = reduce(List(l1, reduce(List(l2, l3)))
    
    Returns:
  - getKeyColumns
```
List<String> getKeyColumns()
```
    Returns: