BaseChangeEventListener


public interface BaseChangeEventListener<S, E>

Event listener for changes in an BaseObservableSnapshotArray.

Method Summary

Modifier and Type	Method	Description
`abstract void`	`onChildChanged(@NonNull() ChangeEventType type, @NonNull() S snapshot, int newIndex, int oldIndex)`	A callback for when a child event occurs.
`abstract void`	`onDataChanged()`	Callback triggered after all child events in a particular snapshot have beenprocessed.
`abstract void`	`onError(@NonNull() E e)`	Callback when an error has been detected in the underlying listener.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - onChildChanged
```
 abstract void onChildChanged(@NonNull() ChangeEventType type, @NonNull() S snapshot, int newIndex, int oldIndex)
```
    A callback for when a child event occurs.
    
    Parameters:
    
    type - The type of the event.
    
    snapshot - The snapshot of the changed child.
    
    newIndex - The new index of the element, or -1 of it is no longer present
    
    oldIndex - The previous index of the element, or -1 if it was notpreviously tracked.
  - onDataChanged
```
 abstract void onDataChanged()
```
    Callback triggered after all child events in a particular snapshot have beenprocessed.
    Useful for batch events, such as removing a loading indicator after initial loador a large update batch.
  - onError
```
 abstract void onError(@NonNull() E e)
```
    Callback when an error has been detected in the underlying listener.
    
    Parameters:
    
    e - the error that occurred.