# Uses of Interface
org.eclipse.birt.chart.device.IUpdateNotifier

Packages that use IUpdateNotifier
Package
Description
org.eclipse.birt.chart.device
Provides interfaces and no-op adapters that define services provided by the device renderer and an associated display server.
org.eclipse.birt.chart.render
Contains classes that represent the core plot rendering framework.

## Uses of IUpdateNotifier in org.eclipse.birt.chart.device

Subinterfaces of IUpdateNotifier in org.eclipse.birt.chart.device
Modifier and Type
Interface
Description
`interface`
`ICallBackNotifier`
This interface adds the callback ability to the existing IUpdateNotifer interface, any listener who want to perform a callback must implement this instead of the original IUpdateNotifer.
Classes in org.eclipse.birt.chart.device that implement IUpdateNotifier
Modifier and Type
Class
Description
`class`
`EmptyUpdateNotifier`
A convenient empty update notifier doing nothing.

## Uses of IUpdateNotifier in org.eclipse.birt.chart.render

Methods in org.eclipse.birt.chart.render with parameters of type IUpdateNotifier
Modifier and Type
Method
Description
`void`
InteractiveRenderer.`setUpdateNotifier(IUpdateNotifier _iun)`