WatermarkManager (Flink : Core API 2.1.2-cp1 API)

```
@Experimental
public interface WatermarkManager
```
The WatermarkManager interface provides a mechanism to emit watermarks from a process function.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void emitWatermark(Watermark watermark)
  Emits a watermark from the process function.

- Method Detail
  - emitWatermark
```
void emitWatermark(Watermark watermark)
```
    Emits a watermark from the process function.
    
    Parameters:
    
    watermark - the Watermark to emit.