OutgoingFileTransfer.NegotiationProgress (Smack 4.4.0 API)

Enclosing class:

OutgoingFileTransfer
```
public static interface OutgoingFileTransfer.NegotiationProgress
```
A callback class to retrieve the status of an outgoing transfer negotiation process.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`errorEstablishingStream(Exception e)`	Called when an exception occurs during the negotiation progress.
`void`	`outputStreamEstablished(OutputStream stream)`	Once the negotiation process is completed the output stream can be retrieved.
`void`	`statusUpdated(FileTransfer.Status oldStatus, FileTransfer.Status newStatus)`	Called when the status changes.

- Method Detail
  - statusUpdated
```
void statusUpdated(FileTransfer.Status oldStatus,
                   FileTransfer.Status newStatus)
```
    Called when the status changes.
    
    Parameters:
    
    oldStatus - the previous status of the file transfer.
    
    newStatus - the new status of the file transfer.
  - outputStreamEstablished
```
void outputStreamEstablished(OutputStream stream)
```
    Once the negotiation process is completed the output stream can be retrieved.
    
    Parameters:
    
    stream - the established stream which can be used to transfer the file to the remote entity
  - errorEstablishingStream
```
void errorEstablishingStream(Exception e)
```
    Called when an exception occurs during the negotiation progress.
    
    Parameters:
    
    e - the exception that occurred.