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Java > Open Source Codes > org > objectweb > easybeans > tests > common > interceptors > invocationcontext > ICParamInterceptorCheckNull


1 /**
2  * EasyBeans
3  * Copyright (C) 2006 Bull S.A.S.
4  * Contact: easybeans@objectweb.org
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19  * USA
20  *
21  * --------------------------------------------------------------------------
22  * $Id: ICParamInterceptorCheckNull.java 450 2006-05-12 15:30:25Z benoitf $
23  * --------------------------------------------------------------------------
24  */
25 package org.objectweb.easybeans.tests.common.interceptors.invocationcontext;
26
27 import javax.interceptor.AroundInvoke;
28 import javax.interceptor.InvocationContext;
29
30
31
32 /**
33  * Checks if the intercepted method parameters are null.
34  * @author Eduardo Studzinski Estima de Castro
35  * @author Gisele Pinheiro Souza
36  *
37  */
38 public class ICParamInterceptorCheckNull {
39
40     /**
41      * Checks if all intercepted method parameters are null.
42      * @param ic contains attributes of invocation
43      * @return method's invocation result
44      * @throws Exception if invocation fails
45      */
46     @AroundInvoke
47     public Object JavaDoc checkNull(final InvocationContext ic) throws Exception JavaDoc {
48         Object JavaDoc[] arParam = ic.getParameters();
49
50         if (arParam != null) {
51             for (int i = 0; i < arParam.length; i++) {
52                 if (arParam[i] != null){
53                     throw new Exception JavaDoc(ICParamInterceptorCheckNull.class.getName() + " - some values are not null.");
54                 }
55             }
56         }
57         return ic.proceed();
58     }
59 }
60
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