CheckpointStateToolset (Flink : Runtime 2.1.0 API)

All Known Implementing Classes:

FsCheckpointStateToolset, NotDuplicatingCheckpointStateToolset
```
@Internal
public interface CheckpointStateToolset
```
A toolset of operations that can be performed on a location embedded within the class. Created in CheckpointStorageWorkerView.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`canFastDuplicate(StreamStateHandle stateHandle)`	Tells if we can duplicate the given `StreamStateHandle`.
`List<StreamStateHandle>`	`duplicate(List<StreamStateHandle> stateHandle)`	Duplicates `StreamStateHandles` into the path embedded inside of the class.

- Method Detail
  - canFastDuplicate
```
boolean canFastDuplicate(StreamStateHandle stateHandle)
                  throws IOException
```
    Tells if we can duplicate the given StreamStateHandle.
    This should be a rather cheap operation, preferably not involving any remote accesses.
    
    Parameters:
    
    stateHandle - The handle to duplicate
    
    Returns:
    
    true, if we can perform the duplication
    
    Throws:
    
    IOException
  - duplicate
```
List<StreamStateHandle> duplicate(List<StreamStateHandle> stateHandle)
                           throws IOException
```
    Duplicates StreamStateHandles into the path embedded inside of the class.
    You should first check if you can duplicate with canFastDuplicate(StreamStateHandle).
    
    Parameters:
    
    stateHandle - The handles to duplicate
    
    Returns:
    
    The duplicated handles
    
    Throws:
    
    IOException