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Java > Open Source Codes > com > caucho > bytecode > JAnnotationObject


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.bytecode;
31
32 /**
33  * Represents an annotation object
34  */
35 abstract public class JAnnotationObject {
36   /**
37    * Returns the annotation.
38    */
39   public JAnnotation []getDeclaredAnnotations()
40   {
41     return new JAnnotation[0];
42   }
43
44   /**
45    * Returns the annotation.
46    */
47   public JAnnotation getAnnotation(String JavaDoc className)
48   {
49     for (JAnnotation ann : getDeclaredAnnotations()) {
50       if (ann.getType().equals(className))
51     return ann;
52     }
53     
54     return null;
55   }
56
57   /**
58    * Returns the annotation.
59    */
60   public JAnnotation getAnnotation(Class JavaDoc cl)
61   {
62     if (cl != null)
63       return getAnnotation(cl.getName());
64     else
65       return null;
66   }
67
68   /**
69    * Returns the annotation.
70    */
71   public boolean isAnnotationPresent(String JavaDoc className)
72   {
73     return getAnnotation(className) != null;
74   }
75
76   /**
77    * Returns the annotation.
78    */
79   public boolean isAnnotationPresent(Class JavaDoc cl)
80   {
81     return isAnnotationPresent(cl.getName());
82   }
83 }
84
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