WatermarkCache (google-cloud-platform 2.68.0 API)

All Known Implementing Classes:

AsyncWatermarkCache, NoOpWatermarkCache

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 interface WatermarkCache
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`com.google.cloud.Timestamp`	`getUnfinishedMinWatermark()`	Fetches the earliest partition watermark from the partition metadata table that is not in a `PartitionMetadata.State.FINISHED` state.

- Method Detail
  - getUnfinishedMinWatermark
```
@Nullable
com.google.cloud.Timestamp getUnfinishedMinWatermark()
```
    Fetches the earliest partition watermark from the partition metadata table that is not in a PartitionMetadata.State.FINISHED state.
    
    Returns:
    
    the earliest partition watermark which is not in a PartitionMetadata.State.FINISHED state.