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  * Created on February 9, 2006, 12:58 PM
  * $Id:,v 1.3 2007/01/29 07:56:07 rlubke Exp $
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 * (the License). You may not use this file except in
 * compliance with the License.
 * You can obtain a copy of the License at
 * or
 * legal/CDDLv1.0.txt. 
 * See the License for the specific language governing
 * permission and limitations under the License.
 * When distributing Covered Code, include this CDDL
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 * at legal/CDDLv1.0.txt.    
 * If applicable, add the following below the CDDL Header,
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 * Copyright 2005 Sun Microsystems Inc. All Rights Reserved
package javax.faces.component;

A simple callback interace that enables taking action on a specific UIComponent (either facet or child) in the view while preserving any contextual state for that component instance in the view.

public interface ContextCallback {

This method will be called by an implementation of UIComponent.invokeOnComponent(javax.faces.context.FacesContext,java.lang.String,javax.faces.component.ContextCallback) and must be passed the component with the clientId given as an argument to invokeOnComponent. At the point in time when this method is called, the argument target is guaranteed to be in the proper state with respect to its ancestors in the View.

context the FacesContext for this request.
target the UIComponent that was located by clientId by a call to UIComponent.invokeOnComponent(javax.faces.context.FacesContext,java.lang.String,javax.faces.component.ContextCallback).
    public void invokeContextCallback(FacesContext context
				      UIComponent target);
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