StateLocationRetriever (Flink : Runtime 2.0.0 API)

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 StateLocationRetriever
```
Component to retrieve the state location of an execution vertex.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Optional<TaskManagerLocation>`	`getStateLocation(ExecutionVertexID executionVertexId)`	Returns state location of an execution vertex.

- Method Detail
  - getStateLocation
```
Optional<TaskManagerLocation> getStateLocation(ExecutionVertexID executionVertexId)
```
    Returns state location of an execution vertex.
    
    Parameters:
    
    executionVertexId - id of the execution vertex
    
    Returns:
    
    optional that is assigned with the vertex's state location if the location exists, otherwise empty