FileTreeDataViews.CacheObserver

Type Parameters:

T - the type for the FileTreeDataViews.Entry data

Enclosing class:

FileTreeDataViews
```
public static interface FileTreeDataViews.CacheObserver<T>
```
Provides callbacks to run when different types of file events are detected by the cache.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onCreate(FileTreeDataViews.Entry<T> newEntry)`	Callback to fire when a new path is created.
`void`	`onDelete(FileTreeDataViews.Entry<T> oldEntry)`	Callback to fire when a path is deleted.
`void`	`onError(java.io.IOException exception)`	Callback to fire when an error is encountered generating while updating a path.
`void`	`onUpdate(FileTreeDataViews.Entry<T> oldEntry, FileTreeDataViews.Entry<T> newEntry)`	Callback to fire when a path is modified.

- Method Detail
  - onCreate
```
void onCreate(FileTreeDataViews.Entry<T> newEntry)
```
    Callback to fire when a new path is created.
    
    Parameters:
    
    newEntry - the FileTreeDataViews.Entry for the newly created file
  - onDelete
```
void onDelete(FileTreeDataViews.Entry<T> oldEntry)
```
    Callback to fire when a path is deleted.
    
    Parameters:
    
    oldEntry - the FileTreeDataViews.Entry for the deleted.
  - onUpdate
```
void onUpdate(FileTreeDataViews.Entry<T> oldEntry,
              FileTreeDataViews.Entry<T> newEntry)
```
    Callback to fire when a path is modified.
    
    Parameters:
    
    oldEntry - the FileTreeDataViews.Entry for the updated path
    
    newEntry - the FileTreeDataViews.Entry for the deleted path
  - onError
```
void onError(java.io.IOException exception)
```
    Callback to fire when an error is encountered generating while updating a path.
    
    Parameters:
    
    exception - The exception thrown by the computation