Upload.ChangeListener (vaadin-server 8.21.0 API)

All Superinterfaces:

java.util.EventListener, java.io.Serializable, SerializableEventListener

Enclosing class:

Upload

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public static interface Upload.ChangeListener
extends SerializableEventListener
```
Listener for Upload.ChangeEvent.

Since:

7.2

Field Summary

Fields
Modifier and Type Field Description

static java.lang.reflect.Method FILENAME_CHANGED

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`filenameChanged(Upload.ChangeEvent event)`	A file has been selected but upload has not yet started.

- Field Detail
  - FILENAME_CHANGED
```
static final java.lang.reflect.Method FILENAME_CHANGED
```
- Method Detail
  - filenameChanged
```
void filenameChanged(Upload.ChangeEvent event)
```
    A file has been selected but upload has not yet started.
    
    Parameters:
    
    event - the change event