AcknowledgementSink (midPoint API Distribution 4.4.1 API)

```
@Experimental
public interface AcknowledgementSink
```
Denotes an object capable of receiving an acknowledge that an item was processed. It is placed in this module and package, because it is a universal concept, with a scope similar to ResultHandler.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`acknowledge(boolean release, OperationResult result)`	Informs the receiver that a particular item was processed (successfully or not).

- Method Detail
  - acknowledge
```
void acknowledge(boolean release,
                 OperationResult result)
```
    Informs the receiver that a particular item was processed (successfully or not).
    
    Parameters:
    
    release - If true, the item can be forgotten. If false, we want to receive that item again, presumably to be reprocessed later.
    
    result - Operation result in context of which the acknowledgement should take place. It is useful if the acknowledgement itself can take considerable time, e.g. when it involves a communication with an external party.