1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.beanutils.bugs.other;
18
19 import java.beans.BeanInfo;
20 import java.beans.IndexedPropertyDescriptor;
21 import java.beans.IntrospectionException;
22 import java.beans.Introspector;
23 import java.beans.PropertyDescriptor;
24 import java.util.ArrayList;
25 import java.util.List;
26
27 /**
28 * Test if BeanInfo supports index properties for java.util.List
29 * <p>
30 * This was supported by Java until Java 8 (BEANUTILS-492).
31 *
32 * @see <a href="https://issues.apache.org/jira/browse/BEANUTILS-492">BEANUTILS-492</a>
33 */
34 public class Jira492IndexedListsSupport {
35 public static class IndexedBean {
36 private List<String> someList = new ArrayList<String>();
37 public List<String> getSomeList() {
38 return someList;
39 }
40 public void setSomeList(List<String> someList) {
41 this.someList = someList;
42 }
43 public void setSomeList(int i, String value) {
44 someList.set(i, value);
45 }
46 public String getSomeList(int i) {
47 return someList.get(i);
48 }
49 }
50
51 public static boolean supportsIndexedLists() throws IntrospectionException {
52 BeanInfo beanInfo = Introspector.getBeanInfo(IndexedBean.class);
53 for (PropertyDescriptor pd : beanInfo.getPropertyDescriptors()) {
54 if (pd.getName().equals("someList")) {
55 return pd instanceof IndexedPropertyDescriptor;
56 }
57 }
58 throw new IllegalStateException("Could not find PropertyDescriptor for 'file'");
59 }
60
61 }