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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
ListenerMapPropertyAccessor.java | 25% | 40% | 50% | 37.5% |
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1 | // Copyright 2004, 2005 The Apache Software Foundation | |
2 | // | |
3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | // you may not use this file except in compliance with the License. | |
5 | // You may obtain a copy of the License at | |
6 | // | |
7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
8 | // | |
9 | // Unless required by applicable law or agreed to in writing, software | |
10 | // distributed under the License is distributed on an "AS IS" BASIS, | |
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 | // See the License for the specific language governing permissions and | |
13 | // limitations under the License. | |
14 | ||
15 | package org.apache.tapestry.listener; | |
16 | ||
17 | import java.util.Map; | |
18 | ||
19 | import ognl.ObjectPropertyAccessor; | |
20 | import ognl.OgnlException; | |
21 | ||
22 | /** | |
23 | * Exposes {@link org.apache.tapestry.IActionListener} listeners provided by the | |
24 | * {@link org.apache.tapestry.listener.ListenerMap} as read-only properties of the map. | |
25 | * | |
26 | * @author Howard Lewis Ship | |
27 | * @since 2.2 | |
28 | */ | |
29 | ||
30 | public class ListenerMapPropertyAccessor extends ObjectPropertyAccessor | |
31 | { | |
32 | /** | |
33 | * Checks to see if the ListenerMapImpl provides the named listener, returning the listener if | |
34 | * it does. Otherwise, invokes the super implementation. | |
35 | */ | |
36 | ||
37 | 5 | public Object getProperty(Map context, Object target, Object name) throws OgnlException |
38 | { | |
39 | 5 | ListenerMap map = (ListenerMap) target; |
40 | 5 | String listenerName = (String) name; |
41 | ||
42 | 5 | if (map.canProvideListener(listenerName)) |
43 | 5 | return map.getListener(listenerName); |
44 | ||
45 | 0 | return super.getProperty(context, target, name); |
46 | } | |
47 | ||
48 | /** | |
49 | * Returns true if the ListenerMap contains the named listener, otherwise invokes | |
50 | * super-implementation. | |
51 | */ | |
52 | ||
53 | 0 | public boolean hasGetProperty(Map context, Object target, Object oname) throws OgnlException |
54 | { | |
55 | 0 | ListenerMap map = (ListenerMap) target; |
56 | 0 | String listenerName = (String) oname; |
57 | ||
58 | 0 | if (map.canProvideListener(listenerName)) |
59 | 0 | return true; |
60 | ||
61 | 0 | return super.hasGetProperty(context, target, oname); |
62 | } | |
63 | ||
64 | } |
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