GatewayRetriever (Flink : Runtime 2.0.0 API)

Type Parameters:

T - type of the object to retrieve

All Known Implementing Classes:

LeaderGatewayRetriever, RpcGatewayRetriever
```
public interface GatewayRetriever<T extends org.apache.flink.runtime.rpc.RpcGateway>
```
Generic retriever interface for RpcGateway.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`CompletableFuture<T>`	`getFuture()`	Get future of object to retrieve.
`default Optional<T>`	`getNow()`	Returns the currently retrieved gateway if there is such an object.

- Method Detail
  - getFuture
```
CompletableFuture<T> getFuture()
```
    Get future of object to retrieve.
    
    Returns:
    
    Future object to retrieve
  - getNow
```
default Optional<T> getNow()
```
    Returns the currently retrieved gateway if there is such an object. Otherwise it returns an empty optional.
    
    Returns:
    
    Optional object to retrieve