1 /* 2 * $Id$ 3 * 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 22 package org.apache.struts.tiles; 23 24 import java.io.IOException; 25 import java.io.Serializable; 26 27 import jakarta.servlet.ServletContext; 28 import jakarta.servlet.ServletException; 29 import jakarta.servlet.http.HttpServletRequest; 30 import jakarta.servlet.http.HttpServletResponse; 31 32 /** 33 * A controller is a piece of code called before rendering a jsp page. 34 * A controller can be associated to a tile. See <insert> or 35 * <definition> for association syntax. 36 */ 37 public interface Controller extends Serializable { 38 39 /** 40 * Method associated to a tile and called immediately before the tile 41 * is included. 42 * 43 * @param tileContext Current tile context. 44 * @param request Current request 45 * @param response Current response 46 * @param servletContext Current servlet context 47 * @deprecated Use execute() instead. This will be removed after 48 * Struts 1.2. 49 */ 50 @Deprecated 51 public void perform( 52 ComponentContext tileContext, 53 HttpServletRequest request, 54 HttpServletResponse response, 55 ServletContext servletContext) 56 throws ServletException, IOException; 57 58 /** 59 * Method associated to a tile and called immediately before the tile 60 * is included. 61 * 62 * @param tileContext Current tile context. 63 * @param request Current request 64 * @param response Current response 65 * @param servletContext Current servlet context 66 */ 67 public void execute( 68 ComponentContext tileContext, 69 HttpServletRequest request, 70 HttpServletResponse response, 71 ServletContext servletContext) 72 throws Exception; 73 }