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

java.lang.Object
  extended by com.google.gwt.visualization.client.events.Handler
      extended by com.google.gwt.visualization.client.events.RangeChangeHandler

public abstract class RangeChangeHandler
extends Handler

This class handles range events for visualizations such as AnnotatedTimeLine.


Nested Class Summary
 class RangeChangeHandler.RangeChangeEvent
          This event is fired when the user changes the date range of the visualization.
 
Constructor Summary
RangeChangeHandler()
           
 
Method Summary
protected  void onEvent(Properties properties)
          This method should be overridden by event-specific Handler subclasses.
abstract  void onRangeChange(RangeChangeHandler.RangeChangeEvent 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

RangeChangeHandler

public RangeChangeHandler()
Method Detail

onRangeChange

public abstract void onRangeChange(RangeChangeHandler.RangeChangeEvent event)

onEvent

protected void onEvent(Properties properties)
                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:
properties - The JavaScriptObject containing data about the event.
Throws:
Properties.TypeException - If some property of the event has an unexpected type.