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Public API for the Apache MyFaces Trinidad project
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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.myfaces.trinidad.change;

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


/**
 * Base class for ChangeManager implementations that wrap other ChangeManagers.
 */
abstract public class ChangeManagerWrapper extends ChangeManager
{
  /**
   * Delegates the addComponentChange() implementation to the wrapped
   * ChangeManager.
   */
  @Override
  public void addComponentChange(
    FacesContext context,
    UIComponent component,
    ComponentChange change)
  {
    getWrappedChangeManager().addComponentChange(context, component, change);
  }

  /**
   * Delegates the addDocumentChange() implementation to the wrapped ChangeManager.
   * 
   * @see #addDocumentChangeWithOutcome(FacesContext, UIComponent, DocumnentChange)
   */
  @Override
  @SuppressWarnings("deprecation")
  public void addDocumentChange(
    FacesContext context,
    UIComponent component,
    DocumentChange change)
  {
    getWrappedChangeManager().addDocumentChange(context, component, change);
  }

  /**
   * Delegates the applyComponentChangesForCurrentView() implementation to 
   * the wrapped ChangeManager.
   */
  @Override
  public void applyComponentChangesForCurrentView(FacesContext context)
  {
    getWrappedChangeManager().applyComponentChangesForCurrentView(context);
  }

  /**
   * Delegates the applyComponentChangesForSubtree() implementation to the 
   * wrapped ChangeManager.
   */
  @Override
  public void applyComponentChangesForSubtree(FacesContext context, NamingContainer root)
  {
    getWrappedChangeManager().applyComponentChangesForSubtree(context, root);
  }

  /**
   * Delegates the applySimpleComponentChanges() implementation to the wrapped
   * ChangeManager.
   */
  @Override
  public void applySimpleComponentChanges(FacesContext context, UIComponent component)
  {
    getWrappedChangeManager().applySimpleComponentChanges(context, component);
  }

  /**
   * Delegates the documentChangeApplied() implementation to the wrapped ChangeManager.
   */
  @Override
  public NotificationOutcome documentChangeApplied(
    FacesContext facesContext, 
    UIComponent component, 
    ComponentChange componentChange)
  {
    return getWrappedChangeManager().documentChangeApplied(facesContext, 
                                                           component, 
                                                           componentChange);
  }

  /**
   * Delegates the addDocumentChangeWithOutcome() implementation to the wrapped ChangeManager.
   */
  @Override
  public ChangeOutcome addDocumentChangeWithOutcome(
    FacesContext facesContext,
    UIComponent uiComponent,
    DocumentChange change)
  {
    return getWrappedChangeManager().addDocumentChangeWithOutcome(facesContext, 
                                                                  uiComponent, 
                                                                  change);
  }
  
  /**
   * Delegates the replaceAttributeChangeIfPresent() implementation to the wrapped ChangeManager.
   */
  @Override
  public AttributeComponentChange replaceAttributeChangeIfPresent(
    FacesContext facesContext,
    UIComponent uiComponent,
    AttributeComponentChange attributeComponentChange)
  {
    return getWrappedChangeManager().replaceAttributeChangeIfPresent(facesContext,
                                                                     uiComponent,
                                                                     attributeComponentChange);
  }

  /**  
   * Returns the wrapped ChangeManager.
   */  
  abstract protected ChangeManager getWrappedChangeManager();
}