public class PostAddToViewEvent extends ComponentSystemEvent
When an instance of this event is passed to
SystemEventListener.processEvent(jakarta.faces.event.SystemEvent) or ComponentSystemEventListener.processEvent(jakarta.faces.event.ComponentSystemEvent), the listener
implementation may assume that the source of this event instance is a UIComponent instance and
that either that instance or an ancestor of that instance was just added to the view. Therefore, the implementation
may assume it is safe to call UIComponent.getParent(), UIComponent.getClientId(), and other methods that
depend upon the component instance being added into the view.
The implementation must guarantee that Application.publishEvent(jakarta.faces.context.FacesContext, java.lang.Class<? extends jakarta.faces.event.SystemEvent>, java.lang.Object) is called,
immediately after any UIComponent instance is added to the view hierarchy except in the
case where ResponseStateManager.isPostback(jakarta.faces.context.FacesContext) returns true at the same
time as FacesContext.getCurrentPhaseId() returns
PhaseId.RESTORE_VIEW. When both of those conditions are met,
Application.publishEvent(jakarta.faces.context.FacesContext, java.lang.Class<? extends jakarta.faces.event.SystemEvent>, java.lang.Object) must not be called.
The implementation must guarantee that Application.publishEvent(jakarta.faces.context.FacesContext, java.lang.Class<? extends jakarta.faces.event.SystemEvent>, java.lang.Object) is called in the
following cases.
Upon the initial construction of the view, when each instance is added to the view.
On a non-initial rendering of the view, if a component is added to the view by the View Declaration Language
implementation as a result of changes in evaluation result of Jakarta Expression Language expressions referenced by
VDL tags such as c:if, ui:include, and other tags that dynamically influence the assembly
of the view.
If a component is programmatically added to the view using the Java API directly. For example, user code manually
adds children using comp.getChildren().add(), where comp is a UIComponent.
| Constructor and Description |
|---|
PostAddToViewEvent(FacesContext facesContext,
UIComponent component)
Instantiate a new |
PostAddToViewEvent(UIComponent component)
Instantiate a new |
| Modifier and Type | Method and Description |
|---|---|
boolean |
isAppropriateListener(FacesListener listener)
Returns |
getComponent, processListenergetFacesContextpublic PostAddToViewEvent(UIComponent component)
Instantiate a new PostAddToViewEvent that indicates the argument component was just added
to the view.
component - the UIComponent that has just been added to the view.java.lang.IllegalArgumentException - if the argument is null.public PostAddToViewEvent(FacesContext facesContext, UIComponent component)
Instantiate a new PostAddToViewEvent that indicates the argument component was just added
to the view.
facesContext - the Faces context.component - the UIComponent that has just been added to the view.java.lang.IllegalArgumentException - if the argument is null.public boolean isAppropriateListener(FacesListener listener)
Returns true if and only if the argument listener is an instance of
SystemEventListener.
isAppropriateListener in class ComponentSystemEventlistener - the faces listener.