| package org.apache.velocity.app.event; |
| |
| import org.apache.velocity.context.Context; |
| import org.apache.velocity.util.introspection.Info; |
| |
| /* |
| * 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. |
| */ |
| |
| /** |
| * Event handler called when a method throws an exception. This gives the |
| * application a chance to deal with it and either |
| * return something nice, or throw. |
| * |
| * Please return what you want rendered into the output stream. |
| * |
| * @author <a href="mailto:wglass@forio.com">Will Glass-Husain</a> |
| * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a> |
| * @version $Id$ |
| */ |
| public interface MethodExceptionEventHandler extends EventHandler |
| { |
| /** |
| * Called when a method throws an exception. |
| * Only the first registered MethodExceptionEventHandler is called. If |
| * none are registered a MethodInvocationException is thrown. |
| * |
| * @param context current context |
| * @param claz the class of the object the method is being applied to |
| * @param method the method |
| * @param e the thrown exception |
| * @param info contains template, line, column details |
| * @return an object to insert in the page |
| * @throws RuntimeException an exception to be thrown instead inserting an object |
| */ |
| Object methodException(Context context, Class claz, String method, Exception e, Info info); |
| } |