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.validation;
018
019import java.io.Serializable;
020
021import org.apache.wicket.util.io.IClusterable;
022
023/**
024 * Interface representing a validation error.
025 * 
026 * @author Igor Vaynberg (ivaynberg)
027 * @since 1.2.6
028 */
029public interface IValidationError extends IClusterable
030{
031        /**
032         * Retrieves the error message (usually user-facing).
033         * 
034         * @param messageSource
035         *            the message source
036         * @return the error message
037         */
038        Serializable getErrorMessage(IErrorMessageSource messageSource);
039}