| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.ofbiz.webapp.event; |
| |
| import javax.servlet.ServletContext; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.ofbiz.webapp.control.ConfigXMLReader.Event; |
| import org.ofbiz.webapp.control.ConfigXMLReader.RequestMap; |
| |
| /** |
| * EventHandler - Event Handler Interface |
| */ |
| |
| public interface EventHandler { |
| |
| /** |
| * Initializes the handler. Since handlers use the singleton pattern this method should only be called |
| * the first time the handler is used. |
| * |
| * @param context ServletContext This may be needed by the handler in order to lookup properties or XML |
| * definition files for rendering pages or handler options. |
| * @throws EventHandlerException |
| */ |
| public void init(ServletContext context) throws EventHandlerException; |
| |
| /** |
| * Invoke the web event |
| * @param event Contains information about what to execute |
| * @param requestMap Contains information about the request-map the event was called from |
| * @param request The servlet request object |
| * @param response The servlet response object |
| * |
| *@return String Result code |
| *@throws EventHandlerException |
| */ |
| public String invoke(Event event, RequestMap requestMap, HttpServletRequest request, HttpServletResponse response) throws EventHandlerException; |
| } |