ProcessVariableExistanceCallback (Java Channel Access 2.4.9 API)

```
public interface ProcessVariableExistanceCallback
```
Asynchronous operation completion callback for process variable existance test.

Version:

$Id: ProcessVariableExistanceCallback.java,v 1.2 2006-03-10 13:54:25 msekoranja Exp $

Author:

Matej Sekoranja (matej.sekoranja@cosylab.com)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`canceled()`	Notify about asynchronous operation cancellation.
`void`	`processVariableExistanceTestCompleted(ProcessVariableExistanceCompletion completion)`	Notify about process variable existance.

- Method Detail
  - processVariableExistanceTestCompleted
```
void processVariableExistanceTestCompleted(ProcessVariableExistanceCompletion completion)
```
    Notify about process variable existance.
    
    Parameters:
    
    completion - process variable existance status.
  - canceled
```
void canceled()
```
    Notify about asynchronous operation cancellation.