State (Flink : Core 1.18.1-cp1 API)

All Known Subinterfaces:

AggregatingState<IN,OUT>, AppendingState<IN,OUT>, BroadcastState<K,V>, ListState<T>, MapState<UK,UV>, MergingState<IN,OUT>, ReadOnlyBroadcastState<K,V>, ReducingState<T>, ValueState<T>
```
@PublicEvolving
public interface State
```
Interface that different types of partitioned state must implement.
The state is only accessible by functions applied on a KeyedStream. The key is automatically supplied by the system, so the function always sees the value mapped to the key of the current element. That way, the system can handle stream and state partitioning consistently together.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void clear()
  Removes the value mapped under the current key.

- Method Detail
  - clear
```
void clear()
```
    Removes the value mapped under the current key.