@Internal public interface OnWatermarkCallback<KEY>
InternalWatermarkCallbackService
service. This callback
will be invoked for all keys registered with the service, upon reception of a watermark.Modifier and Type | Method and Description |
---|---|
void |
onWatermark(KEY key,
Watermark watermark)
The action to be triggered upon reception of a watermark.
|
void onWatermark(KEY key, Watermark watermark) throws IOException
key
- The current key.watermark
- The current watermark.IOException
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