ValueChangeHandler (vaadin-all 8.28.0 API)

java.lang.Object
- com.vaadin.client.ui.textfield.ValueChangeHandler

```
public class ValueChangeHandler
extends Object
```
Helper for dealing with scheduling value change events based on a given mode and possibly timeout.

Since:

8.0

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static interface ValueChangeHandler.Owner
Must be implemented by any user of a ValueChangeHandler.

Constructor Summary

Constructors
Constructor Description

ValueChangeHandler(ValueChangeHandler.Owner owner)
Creates a value change handler for the given owner.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`isScheduled()`	Checks whether the value change is scheduled for sending.
`void`	`scheduleValueChange()`	Called whenever a change in the value has been detected.
`void`	`setValueChangeMode(ValueChangeMode valueChangeMode)`	Sets the value change mode to use.
`void`	`setValueChangeTimeout(int valueChangeTimeout)`	Sets the value change timeout to use.

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

- Constructor Detail
  - ValueChangeHandler
```
public ValueChangeHandler(ValueChangeHandler.Owner owner)
```
    Creates a value change handler for the given owner.
    
    Parameters:
    
    owner - the owner connector
- Method Detail
  - scheduleValueChange
```
public void scheduleValueChange()
```
    Called whenever a change in the value has been detected. Schedules a value change to be sent to the server, depending on the current value change mode.
    Note that this method does not consider the ValueChangeMode.BLUR mode but assumes that #sendValueChange() is called directly for this mode.
  - setValueChangeMode
```
public void setValueChangeMode(ValueChangeMode valueChangeMode)
```
    Sets the value change mode to use.
    
    Parameters:
    
    valueChangeMode - the value change mode to use
    
    See Also:
    
    ValueChangeMode
  - setValueChangeTimeout
```
public void setValueChangeTimeout(int valueChangeTimeout)
```
    Sets the value change timeout to use.
    
    Parameters:
    
    valueChangeTimeout - the value change timeout
    
    See Also:
    
    ValueChangeMode
  - isScheduled
```
public boolean isScheduled()
```
    Checks whether the value change is scheduled for sending.
    
    Returns:
    
    true if value change is scheduled for sending, false otherwise
    
    Since:
    
    8.0