001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.wicket.feedback;
018
019/**
020 * Interface for components that present some kind of feedback to the user, normally based on the
021 * feedback messages attached to various components on a given page.
022 * 
023 * This is tells Wicket that a component's {@link org.apache.wicket.Component#beforeRender()} must be called after all non
024 * feedback components have been initialized.
025 * 
026 * @author Jonathan Locke
027 * @author Eelco Hillenius
028 */
029public interface IFeedback
030{
031        void beforeRender();
032}