BlobChangingCallback (Storm 2.7.1 API)

All Known Implementing Classes:

Slot
```
public interface BlobChangingCallback
```
Callback for when a localized blob is going to change.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`blobChanging(LocalAssignment assignment, int port, LocallyCachedBlob blob, GoodToGo go)`	Informs the listener that a blob has changed and is ready to update and replace a localized blob that has been marked as tied to the life cycle of the worker process.

- Method Detail
  - blobChanging
```
void blobChanging(LocalAssignment assignment,
                  int port,
                  LocallyCachedBlob blob,
                  GoodToGo go)
```
    Informs the listener that a blob has changed and is ready to update and replace a localized blob that has been marked as tied to the life cycle of the worker process.
    If `go.getLatch()` is never called before the method completes it is assumed that the listener is good with the blob changing.
    
    Parameters:
    
    assignment - the assignment this resource and callback are registered with.
    
    port - the port that this resource and callback are registered with.
    
    blob - the blob that is going to change.
    
    go - a way to indicate if the listener is ready for the resource to change.