KeyedStateBackend.KeySelectionListener (Flink : Runtime 1.18.1-cp1 API)

Enclosing interface:

KeyedStateBackend<K>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public static interface KeyedStateBackend.KeySelectionListener<K>
```
Listener is given a callback when KeyedStateBackend.setCurrentKey(K) is called (key context changes).

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void keySelected(K newKey)
  Callback when key context is switched.

- Method Detail
  - keySelected
```
void keySelected(K newKey)
```
    Callback when key context is switched.