com.sun.faces.application.view.ViewScopeEventListener Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2013 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 com.sun.faces.application.view;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import javax.faces.event.AbortProcessingException;
import javax.faces.event.SystemEvent;
import javax.faces.event.ViewMapListener;
/**
* The ViewScope event listener.
*
* To make it so the UIViewRoot.getViewMap is as independent as possible
* from implementation specific code we need to get notified when a view map is
* created or destroyed. This ViewMapListener is registered so we get notified
* of these events.
*
* See jsf-ri-config.xml for the actual registration of this listener.
*/
public class ViewScopeEventListener implements ViewMapListener {
/**
* Handle the system event.
*
* @param se the system event.
* @throws AbortProcessingException
*/
@Override
public void processEvent(SystemEvent se) throws AbortProcessingException {
ViewScopeManager.getInstance(FacesContext.getCurrentInstance()).processEvent(se);
}
/**
* Is listener for.
*
* @param source the source.
* @return true if UIViewRoot, false otherwise.
*/
@Override
public boolean isListenerForSource(Object source) {
return (source instanceof UIViewRoot);
}
}