FileTreeViews.Observable

All Known Subinterfaces:

FileTreeDataViews.ObservableCache<T>, FileTreeRepository<T>, PathWatcher<T>

Enclosing class:

FileTreeViews
```
public static interface FileTreeViews.Observable<T>
```
Provides an api for subscribing and unsubscribing to events.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`addObserver(FileTreeViews.Observer<? super T> observer)`	Add an observer of events.
`void`	`removeObserver(int handle)`	Remove an observer.

- Method Detail
  - addObserver
```
int addObserver(FileTreeViews.Observer<? super T> observer)
```
    Add an observer of events. The return value is a handle that can be used to unregister the provided observer from receiving event notifications.
    
    Parameters:
    
    observer - the observer to add
    
    Returns:
    
    the handle to the observer.
  - removeObserver
```
void removeObserver(int handle)
```
    Remove an observer.
    
    Parameters:
    
    handle - the handle that was returned by addObserver