Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
EnumerationPropertyAccessor |
|
| 4.5;4.5 |
1 | package org.apache.commons.ognl; | |
2 | ||
3 | /* | |
4 | * Licensed to the Apache Software Foundation (ASF) under one | |
5 | * or more contributor license agreements. See the NOTICE file | |
6 | * distributed with this work for additional information | |
7 | * regarding copyright ownership. The ASF licenses this file | |
8 | * to you under the Apache License, Version 2.0 (the | |
9 | * "License"); you may not use this file except in compliance | |
10 | * with the License. You may obtain a copy of the License at | |
11 | * | |
12 | * http://www.apache.org/licenses/LICENSE-2.0 | |
13 | * | |
14 | * Unless required by applicable law or agreed to in writing, | |
15 | * software distributed under the License is distributed on an | |
16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
17 | * KIND, either express or implied. See the License for the | |
18 | * specific language governing permissions and limitations | |
19 | * under the License. | |
20 | */ | |
21 | ||
22 | import java.util.Enumeration; | |
23 | import java.util.Map; | |
24 | ||
25 | /** | |
26 | * Implementation of PropertyAccessor that provides "property" reference to "nextElement" (aliases to "next" also) and | |
27 | * "hasMoreElements" (also aliased to "hasNext"). | |
28 | * | |
29 | * @author Luke Blanshard (blanshlu@netscape.net) | |
30 | * @author Drew Davidson (drew@ognl.org) | |
31 | */ | |
32 | 1 | public class EnumerationPropertyAccessor |
33 | extends ObjectPropertyAccessor | |
34 | implements PropertyAccessor // This is here to make javadoc show this class as an implementor | |
35 | { | |
36 | @Override | |
37 | public Object getProperty( Map<String, Object> context, Object target, Object name ) | |
38 | throws OgnlException | |
39 | { | |
40 | Object result; | |
41 | 0 | Enumeration<?> e = (Enumeration<?>) target; // check performed by the invoker |
42 | ||
43 | 0 | if ( name instanceof String ) |
44 | { | |
45 | 0 | if ( "next".equals( name ) || "nextElement".equals( name ) ) |
46 | { | |
47 | 0 | result = e.nextElement(); |
48 | } | |
49 | else | |
50 | { | |
51 | 0 | if ( "hasNext".equals( name ) || "hasMoreElements".equals( name ) ) |
52 | { | |
53 | 0 | result = e.hasMoreElements() ? Boolean.TRUE : Boolean.FALSE; |
54 | } | |
55 | else | |
56 | { | |
57 | 0 | result = super.getProperty( context, target, name ); |
58 | } | |
59 | } | |
60 | } | |
61 | else | |
62 | { | |
63 | 0 | result = super.getProperty( context, target, name ); |
64 | } | |
65 | 0 | return result; |
66 | } | |
67 | ||
68 | @Override | |
69 | public void setProperty( Map<String, Object> context, Object target, Object name, Object value ) | |
70 | throws OgnlException | |
71 | { | |
72 | 0 | throw new IllegalArgumentException( "can't set property " + name + " on Enumeration" ); |
73 | } | |
74 | } |