pre-wicket.1.2.5/wicket-extensions/src/main/java/wicket/extensions/markup/html/repeater/refreshing/OddEvenItem.java

/*
 * $Id$ $Revision$ $Date$
 * 
 * ==============================================================================
 * Licensed 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 wicket.extensions.markup.html.repeater.refreshing;

import wicket.markup.ComponentTag;
import wicket.model.IModel;

/**
 * Item that sets class="even" or class="odd" attributes based on its index
 * 
 * @author Igor Vaynberg (ivaynberg)
 * 
 */
public class OddEvenItem extends Item
{
	private static final long serialVersionUID = 1L;

	private String CLASS_EVEN = "even";
	private String CLASS_ODD = "odd";

	/**
	 * Constructor
	 * 
	 * @param id
	 *            component id
	 * @param index
	 *            item index
	 * @param model
	 *            item model
	 */
	public OddEvenItem(String id, int index, IModel model)
	{
		super(id, index, model);
	}

	protected void onComponentTag(ComponentTag tag)
	{
		super.onComponentTag(tag);
		tag.put("class", (getIndex() % 2 == 0) ? CLASS_EVEN : CLASS_ODD);
	}

}