File D:\maven-qcr-plugin-testsunitaires\qcr4java\jenkins-master\target\site\qc\core\src\main\java\hudson\util\InvocationInterceptor.java.html

1 /*
2 * The MIT License
3 *
4 * Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 package hudson.util;
25
26 import java.lang.reflect.Method;
27 import java.lang.reflect.InvocationHandler;
28
29 /**
30 * Interceptor around {@link InvocationHandler}.
31 *
32 * @author Kohsuke Kawaguchi
33 * @since 1.232
34 */
35 public interface InvocationInterceptor {
36 /**
37 * This method can intercept the invocation of {@link InvocationHandler} either before or after
38 * the invocation happens.
39 *
40 * <p>
41 * The general coding pattern is:
42 *
43 * <pre>
44 * Object invoke(Object proxy, Method method, Object[] args, InvocationHandler delegate) {
45 * ... do pre-invocation work ...
46 * ret = delegate.invoke(proxy,method,args);
47 * ... do post-invocation work ...
48 * return ret;
49 * }
50 * </pre>
51 *
52 * <p>
53 * But the implementation may choose to skip calling the 'delegate' object, alter arguments,
54 * and alter the return value.
55 */
56 Object invoke(Object proxy, Method method, Object[] args, InvocationHandler delegate) throws Throwable;
57 }
58