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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package javax.faces.application;

import javax.faces.FacesWrapper;
import javax.faces.context.FacesContext;

/**
 * 

* NavigationHandlerWrapper provides a simple * implementation of {@link NavigationHandler} that can be subclassed by developers wishing to * provide specialized behavior to an existing {@link NavigationHandler} instance. The default * implementation of all methods is to call through to the wrapped {@link NavigationHandler} * instance. *

* *

* Usage: extend this class and push the implementation being wrapped to the constructor and use * {@link #getWrapped} to access the instance being wrapped. *

* * @since 2.2 */ public abstract class NavigationHandlerWrapper extends NavigationHandler implements FacesWrapper { private NavigationHandler wrapped; /** * @deprecated Use the other constructor taking the implementation being wrapped. */ @Deprecated public NavigationHandlerWrapper() { } /** *

* If this navigation handler has been decorated, the implementation doing the decorating should * push the implementation being wrapped to this constructor. The {@link #getWrapped()} will * then return the implementation being wrapped. *

* * @param wrapped The implementation being wrapped. * @since 2.3 */ public NavigationHandlerWrapper(NavigationHandler wrapped) { this.wrapped = wrapped; } @Override public NavigationHandler getWrapped() { return wrapped; } @Override public void handleNavigation(FacesContext context, String fromAction, String outcome) { getWrapped().handleNavigation(context, fromAction, outcome); } @Override public void handleNavigation(FacesContext context, String fromAction, String outcome, String toFlowDocumentId) { getWrapped().handleNavigation(context, fromAction, outcome, toFlowDocumentId); } }




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