CallBack (opinio plugin api)

```
public interface CallBack
```
This class is not directly part of the normal Opinio event mechanism, but rather a generic interface for a one-to-one callback mechanism. Some methods in the API might require a callback parameter. If the object using such a method, and needs to be called back, implement this method.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`callBack()` Method that will be called back on the original caller, if no errors occurred.
`void`	`callBackOnError(java.lang.String errorInfo)` Method that will be called on the original caller, in the event of an error.

Interface CallBack