RowReducer

Type Parameters:

C - mutable result container type

R - result element type

All Known Subinterfaces:

LinkedHashMapRowReducer<K,V>
```
public interface RowReducer<C,R>
```
Reduces row data from a ResultSet into a stream of result elements. Useful for collapsing one-to-many joins.

See Also:

ResultBearing.reduceRows(RowReducer)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`accumulate(C container, RowView rowView)`	Accumulate data from the current row into the result container.
`C`	`container()`	Returns a new, empty result container.
`java.util.stream.Stream<R>`	`stream(C container)`	Returns a stream of result elements from the result container.

- Method Detail
  - container
```
C container()
```
    Returns a new, empty result container.
    
    Returns:
    
    a new result container.
  - accumulate
```
void accumulate(C container,
                RowView rowView)
```
    Accumulate data from the current row into the result container. Do not attempt to accumulate the RowView itself into the result container--it is only valid within the accumulate() method invocation. Instead, extract mapped types from the RowView by calling RowView.getRow() or RowView.getColumn() and store those values in the container.
    
    Parameters:
    
    container - the result container
    
    rowView - row view over the current result set row.
  - stream
```
java.util.stream.Stream<R> stream(C container)
```
    Returns a stream of result elements from the result container.
    
    Parameters:
    
    container - the result container
    
    Returns:
    
    stream of result elements.