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; 018 019/** 020 * Generates markup ids for components 021 */ 022@FunctionalInterface 023public interface IMarkupIdGenerator 024{ 025 /** 026 * Generates markup id for the given component 027 * 028 * @param component 029 * The component for which to generate a markup id 030 * @param createIfDoesNotExist 031 * When there is no existing markup id, determines whether it should be generated or 032 * whether <code>null</code> should be returned. 033 * @return The generated markup id 034 */ 035 String generateMarkupId(Component component, boolean createIfDoesNotExist); 036}