Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
SyntheticListener |
|
| 1.0;1 |
1 | // Copyright 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 org.apache.hivemind.util.Defense; | |
18 | import org.apache.tapestry.IActionListener; | |
19 | import org.apache.tapestry.IComponent; | |
20 | import org.apache.tapestry.IRequestCycle; | |
21 | ||
22 | /** | |
23 | * Adapter class that combines a target object (typically, a component) with a | |
24 | * {@link org.apache.tapestry.listener.ListenerMethodInvoker}. This is the | |
25 | * bridge from listener method names to listener method invocations. | |
26 | * <p> | |
27 | * TODO: It would really be nice if we could get the location of the listener | |
28 | * binding into thrown exceptions. As implemented, as best, it will be the | |
29 | * location of the <page-specification> (or <component>) of the page | |
30 | * (or component) containing the listener method. | |
31 | * | |
32 | * @author Howard M. Lewis Ship | |
33 | * @since 4.0 | |
34 | */ | |
35 | public class SyntheticListener implements IActionListener | |
36 | { | |
37 | private final Object _target; | |
38 | ||
39 | private final ListenerMethodInvoker _invoker; | |
40 | ||
41 | public SyntheticListener(Object target, ListenerMethodInvoker invoker) | |
42 | 0 | { |
43 | 0 | Defense.notNull(target, "target"); |
44 | 0 | Defense.notNull(invoker, "invoker"); |
45 | ||
46 | 0 | _target = target; |
47 | 0 | _invoker = invoker; |
48 | 0 | } |
49 | ||
50 | public void actionTriggered(IComponent component, IRequestCycle cycle) | |
51 | { | |
52 | 0 | _invoker.invokeListenerMethod(_target, cycle); |
53 | 0 | } |
54 | ||
55 | public String getMethodName() | |
56 | { | |
57 | 0 | return _invoker.getMethodName(); |
58 | } | |
59 | ||
60 | public String toString() | |
61 | { | |
62 | 0 | return "SyntheticListener[methodName = " + _invoker.getMethodName() + "]"; |
63 | } | |
64 | } |