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  /*
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
   *
   * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
   *
   * The contents of this file are subject to the terms of either the GNU
   * General Public License Version 2 only ("GPL") or the Common Development
   * and Distribution License("CDDL") (collectively, the "License").  You
   * may not use this file except in compliance with the License.  You can
  * obtain a copy of the License at
  * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
  * or packager/legal/LICENSE.txt.  See the License for the specific
  * language governing permissions and limitations under the License.
  *
  * When distributing the software, include this License Header Notice in each
  * file and include the License file at packager/legal/LICENSE.txt.
  *
  * GPL Classpath Exception:
  * Oracle designates this particular file as subject to the "Classpath"
  * exception as provided by Oracle in the GPL Version 2 section of the License
  * file that accompanied this code.
  *
  * Modifications:
  * If applicable, add the following below the License Header, with the fields
  * enclosed by brackets [] replaced by your own identifying information:
  * "Portions Copyright [year] [name of copyright owner]"
  *
  * Contributor(s):
  * If you wish your version of this file to be governed by only the CDDL or
  * only the GPL Version 2, indicate your decision by adding "[Contributor]
  * elects to include this software in this distribution under the [CDDL or GPL
  * Version 2] license."  If you don't indicate a single choice of license, a
  * recipient has the option to distribute your version of this file under
  * either the CDDL, the GPL Version 2 or to extend the choice of license to
  * its licensees as provided above.  However, if you add GPL Version 2 code
  * and therefore, elected the GPL Version 2 license, then the option applies
  * only if the new code is made subject to such option by the copyright
  * holder.
  */
 
 package javax.faces.event;
 

Classes tagged with this annotation are installed as listeners using the method javax.faces.application.Application.subscribeToEvent(java.lang.Class,javax.faces.event.SystemEventListener) or javax.faces.component.UIComponent.subscribeToEvent(java.lang.Class,javax.faces.event.ComponentSystemEventListener) (depending on the circumstances, described below).

The default implementation must support attaching this annotation to javax.faces.component.UIComponent or javax.faces.render.Renderer classes. In both cases, the annotation processing described herein must commence during the implementation of any variant of javax.faces.application.Application.createComponent() and must complete before the UIComponent instance is returned from createComponent(). The annotation processing must proceed according to an algorithm semantically equivalent to the following.

Example: The standard renderer for javax.faces.resource.Stylesheet must have the following annotation declaration:

@ListenerFor(systemEventClass=PostAddToViewEvent.class)

This will cause the renderer to be added as a listener for the PostAddToViewEvent to all components that list it as their renderer.

Since:
2.0
public @interface ListenerFor {

    

The kind of system event for which this class will be installed as a listener. The implementation only supports exact matches on the Class and must not honor subclass relationships. It is valid to have EL Expressions in the value of this attribute, as long as the expression resolves to an instance of the expected type.

    public Class<? extends SystemEventsystemEventClass();


    

The kind of object that emits events of the type given by the value of the systemEventClass attribute. It is valid to have EL Expressions in the value of this attribute, as long as the expression resolves to an instance of the expected type.

 
    public Class sourceClass() default Void.class;
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