RequiredBehavior.java

/**
 * Copyright (C) 2010 Asterios Raptis
 *
 * 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 de.alpharogroup.wicket.behaviors;

import org.apache.wicket.Component;
import org.apache.wicket.behavior.Behavior;

/**
 * The Class RequiredBehavior adds a span tag at the end of a component that markes it as required.
 */
public class RequiredBehavior extends Behavior
{

	/**
	 * The serialVersionUID.
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * Instantiates a new RequiredBehavior.
	 */
	public RequiredBehavior()
	{
	}

	/**
	 * {@inheritDoc} for more information @see
	 * org.apache.wicket.behavior.AbstractBehavior#afterRender(org.apache.wicket.Component)
	 */
	@Override
	public void afterRender(final Component component)
	{
		super.afterRender(component);
		component.getResponse().write("<span class=\"required\">*</span>");
	}

}