BeanUtils


1   /**
2    * Nov 23, 2004
3    *
4    * Copyright 2004 uitags
5    *
6    * Licensed under the Apache License, Version 2.0 (the "License");
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  package net.sf.uitags.util;
19  
20  import javax.servlet.jsp.JspException  ;
21  
22  /**
23   * Helper class that provides wrappers for Commons <code>BeanUtils</code>'s
24   * methods. The wrapping methods free the calling code from having to handle
25   * introspection-related checked-exceptions by wrapping them inside
26   * <code>JspException</code>.
27   *
28   * @author jonni
29   * @author hgani
30   * @version $Id$
31   */
32  public final class BeanUtils {
33    /**
34     * Non-instantiable by client.
35     */
36    private BeanUtils() {
37      super();
38    }
39  
40    /**
41     * Wraps <code>BeanUtils</code>' method with the same name
42     * and signature.
43     *
44     * @param bean the bean whose property value is to be returned
45     * @param propertyName the name of the property whose value is to be retrieved
46     * @return the value of the bean property
47     * @throws JspException wraps exceptions thrown by <code>BeanUtils</code>
48     */
49    public static String   getSimpleProperty(Object   bean, String   propertyName)
50        throws JspException   {
51      try {
52        return org.apache.commons.beanutils.BeanUtils.getSimpleProperty(
53            bean, propertyName);
54      }
55      catch (Exception   e) {
56        throw new JspException  (e);
57      }
58    }
59  
60    /**
61     * Wraps <code>BeanUtils</code>' method with the same name
62     * and signature.
63     *
64     * @param bean the bean whose property value is to be returned
65     * @param propertyName the name of the property whose value is to be retrieved
66     * @return the value of the bean property
67     * @throws JspException wraps exceptions thrown by <code>BeanUtils</code>
68     */
69    public static String   getProperty(Object   bean, String   propertyName)
70        throws JspException   {
71      try {
72        return org.apache.commons.beanutils.BeanUtils.getProperty(
73            bean, propertyName);
74      }
75      catch (Exception   e) {
76        throw new JspException  (e);
77      }
78    }
79  }
80
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