KvStateLocationOracle (Flink : Runtime 2.0.1 API)

All Known Subinterfaces:

JobMasterGateway

All Known Implementing Classes:

JobMaster
```
public interface KvStateLocationOracle
```
Oracle for KvStateLocation in the cluster. In order to answer InternalKvState location requests, the TaskExecutor have to register and unregister their respective key-value states at the oracle.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`CompletableFuture<KvStateLocation>`	`requestKvStateLocation(org.apache.flink.api.common.JobID jobId, String registrationName)`	Requests a `KvStateLocation` for the specified `InternalKvState` registration name.

- Method Detail
  - requestKvStateLocation
```
CompletableFuture<KvStateLocation> requestKvStateLocation(org.apache.flink.api.common.JobID jobId,
                                                          String registrationName)
```
    Requests a KvStateLocation for the specified InternalKvState registration name.
    
    Parameters:
    
    jobId - identifying the job for which to request the KvStateLocation
    
    registrationName - Name under which the KvState has been registered.
    
    Returns:
    
    Future of the requested InternalKvState location