org.eclipse.core.databinding.observable.value

Interface IValueChangingListener

All Superinterfaces:

IObservablesListener

public interface IValueChangingListener
extends IObservablesListener

Listener for pre-change events for observable values.

Since:

1.0

Method Summary

Modifier and Type	Method and Description
void	handleValueChanging(ValueChangingEvent event) This method is called when the value is about to change and provides an opportunity to veto the change.

Method Detail

handleValueChanging

void handleValueChanging(ValueChangingEvent event)

This method is called when the value is about to change and provides an opportunity to veto the change. The given event object must only be used locally in this method because it may be reused for other change notifications. The diff object referenced by the event is immutable and may be used non-locally.

Parameters:

event -