ActivityListener (biojava-legacy 1.9.5 API)

```
public interface ActivityListener
```
Interface for object which monitor long-running activities. (may be subject to change before 1.2-final)

Since:

1.2

Author:

Thomas Down

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`activityFailed(Object source, Exception ex)`	Notification of errors behind the scenes.
`void`	`activityProgress(Object source, int current, int target)`	Estimated progress of an activity.
`void`	`completedActivity(Object source)`	Notification that an activity is complete.
`void`	`startedActivity(Object source)`	Notification that an activity has started.

- Method Detail
  - startedActivity
```
void startedActivity(Object source)
```
    Notification that an activity has started.
  - completedActivity
```
void completedActivity(Object source)
```
    Notification that an activity is complete.
  - activityFailed
```
void activityFailed(Object source,
                    Exception ex)
```
    Notification of errors behind the scenes.
  - activityProgress
```
void activityProgress(Object source,
                      int current,
                      int target)
```
    Estimated progress of an activity. This indicated that current parts of the activity have been completed, out of a target target.