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This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.

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package javax.faces.event;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;

/**
 *
 * 

* ComponentSystemEvent is * the base class for {@link SystemEvent}s that are specific to a {@link * UIComponent} instance.

* * @since 2.0 */ public abstract class ComponentSystemEvent extends SystemEvent { private static final long serialVersionUID = -4726746661822507506L; // ------------------------------------------------------------ Constructors /** *

Pass the argument * component to the superclass constructor.

* @param component the UIComponent reference to be * passed to the superclass constructor. * * @throws IllegalArgumentException if the argument is null. * * @since 2.0 */ public ComponentSystemEvent(UIComponent component) { super(component); } /** *

Return true if the argument * {@link FacesListener} is an instance of the appropriate listener class that this event * supports. The default implementation returns true if the listener * is a {@link ComponentSystemEventListener} or if super.isAppropriateListener() * returns true.

* * @param listener {@link FacesListener} to evaluate * @since 2.2 */ @Override public boolean isAppropriateListener(FacesListener listener) { boolean result = (listener instanceof ComponentSystemEventListener); if (!result) { result = super.isAppropriateListener(listener); } return result; } /** *

Broadcast this event instance to * the specified {@link FacesListener} by calling the superclass's * processListener() implementation.

* * @param listener {@link FacesListener} to evaluate * @since 2.2 */ @Override public void processListener(FacesListener listener) { UIComponent c = getComponent(); UIComponent cFromStack; boolean didPush = false; FacesContext context = FacesContext.getCurrentInstance(); cFromStack = UIComponent.getCurrentComponent(context); if (null == cFromStack) { didPush = true; c.pushComponentToEL(context, null); } try { if (listener instanceof SystemEventListener) { super.processListener(listener); } else if (listener instanceof ComponentSystemEventListener) { ((ComponentSystemEventListener)listener).processEvent(this); } } finally { if (didPush) { c.popComponentFromEL(context); } } } // -------------------------------------------------------------- Properties /** *

the source {@link UIComponent} that sent this event.

* * @since 2.0 */ public UIComponent getComponent() { return ((UIComponent) getSource()); } }




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