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Pax Wicket Service is an OSGi extension of the Wicket framework, allowing for dynamic loading and unloading of Wicket components and pageSources.

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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.wicket.markup.renderStrategy;

import org.apache.wicket.Component;
import org.apache.wicket.markup.html.internal.HtmlHeaderContainer;

/**
 * Allows for different header render strategies. The difference per strategy will be order in which
 * components are asked to add to the markup header section. Before 1.5 it was
 * page->container->child. Since 1.5 it has been changed to child->container->parent (see
 * WICKET-2693)
 *
 * @author Juergen Donnerstag
 */
public interface IHeaderRenderStrategy
{
	/**
	 * Implements the render strategy
	 * 
	 * @param headerContainer
	 *            The HeaderContainer associated to the response
	 * @param component
	 *            The root component (e.g. Page) to start the render process
	 */
	void renderHeader(HtmlHeaderContainer headerContainer, Component component);
}