ProgressHandler (swing-tasks 0.0.3 API)

```
public interface ProgressHandler
```
Interface for classes that can pass progress information from implementors to a SwingTask.
An instance of a ProgressHandler may be obtained from a SwingTask by calling SwingTask.getProgressHandler(). This ProgressHandler serves as a channel for informing the SwingTask about progress changes. The SwingTask will forward this information to its ProgressListeners on the Event Dispatch Thread.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`setMessage(String message)` Set the given progress message
`void`	`setProgress(double progress)` Set the given progress.

Interface ProgressHandler