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Java > Open Source Codes > GetInterceptor


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 import org.jboss.aop.joinpoint.Invocation;
23 import org.jboss.aop.joinpoint.FieldReadInvocation;
24 import org.jboss.aop.advice.Interceptor;
25
26 /**
27  *
28  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
29  * @version $Revision: 37406 $
30  */
31 public class GetInterceptor implements Interceptor
32 {
33    public String JavaDoc getName() { return "GetInterceptor"; }
34
35    public Object JavaDoc invoke(Invocation invocation) throws Throwable JavaDoc
36    {
37       if (!(invocation instanceof FieldReadInvocation)) return invocation.invokeNext();
38
39       try
40       {
41          FieldReadInvocation mi = (FieldReadInvocation)invocation;
42          System.out.println("<<< Entering GetInterceptor for: " + mi.getField().getName());
43          return invocation.invokeNext();
44       }
45       finally
46       {
47          System.out.println(">>> Leaving GetInterceptor");
48       }
49    }
50 }
51
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