javax.faces.event
Class PreRenderComponentEvent

java.lang.Object
  java.util.EventObject
      javax.faces.event.SystemEvent
          javax.faces.event.ComponentSystemEvent
              javax.faces.event.PreRenderComponentEvent

All Implemented Interfaces:

java.io.Serializable

public class PreRenderComponentEvent
extends ComponentSystemEvent

When an instance of this event is passed to SystemEventListener.processEvent(javax.faces.event.SystemEvent) or ComponentSystemEventListener.processEvent(javax.faces.event.ComponentSystemEvent), the listener implementation may assume that the source of this event instance is the UIComponent instance that is about to be rendered and that it is safe to call UIComponent.getParent(), UIComponent.getClientId(), and other methods that depend upon the component instance being in the view.

Since:

2.0

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

PreRenderComponentEvent(UIComponent component)

Instantiate a new PreRenderComponentEvent that indicates the argument component is about to be rendered.

Method Summary

Methods inherited from class javax.faces.event.ComponentSystemEvent

getComponent

Methods inherited from class javax.faces.event.SystemEvent

isAppropriateListener, processListener

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

PreRenderComponentEvent

public PreRenderComponentEvent(UIComponent component)

Instantiate a new PreRenderComponentEvent that indicates the argument component is about to be rendered.

Parameters:

component - the UIComponent that is about to be rendered.

Throws:

IllegalArgumentException - if the argument is null.