1 /**
2 *
3 * Copyright 2003-2004 The Apache Software Foundation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.geronimo.interceptor;
19
20
21 /**
22 *
23 *
24 *
25 * @version $Rev: 417891 $ $Date: 2006-06-28 15:45:07 -0700 (Wed, 28 Jun 2006) $
26 */
27 public interface Interceptor {
28
29 /**
30 * Interceptor does a little work for the invocation and then invokes the next interceptor
31 * in the chain.
32 *
33 * @param invocation the invocation for which work will be done
34 * @return the result of the invocation (includes return or application Exception)
35 * @throws java.lang.Throwable if a system exception occures while doing the work
36 */
37 InvocationResult invoke(Invocation invocation) throws Throwable;
38 }