com.google.gwt.visualization.client.events
Class StateChangeHandler

java.lang.Object
  com.google.gwt.visualization.client.events.Handler
      com.google.gwt.visualization.client.events.StateChangeHandler

public abstract class StateChangeHandler
extends Handler

This class handles statechange events for visualizations such as Table.

Nested Class Summary

static class

StateChangeHandler.StateChangeEvent This event is triggered when the user interacts with the chart in some way.

Constructor Summary

StateChangeHandler()

Method Summary

protected void	onEvent(Properties event) This method should be overridden by event-specific Handler subclasses.
abstract void	onStateChange(StateChangeHandler.StateChangeEvent event)

Methods inherited from class com.google.gwt.visualization.client.events.Handler

addHandler

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StateChangeHandler

public StateChangeHandler()

Method Detail

onStateChange

public abstract void onStateChange(StateChangeHandler.StateChangeEvent event)

onEvent

protected void onEvent(Properties event)
                throws Properties.TypeException

Description copied from class: Handler

This method should be overridden by event-specific Handler subclasses. The subclass should extract the event properties (if any), create a GWT Event bean object, and pass it to the event-specific callback.

Specified by:

onEvent in class Handler

Parameters:

event - The JavaScriptObject containing data about the event.

Throws:

Properties.TypeException - If some property of the event has an unexpected type.