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30 day Evaluation License registered to hlship@comcast.net Your 30 day evaluation period has expired. Please visit http://www.cenqua.com to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
InvokeListener.java | - | 100% | 100% | 100% |
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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.components; | |
16 | ||
17 | import org.apache.tapestry.AbstractComponent; | |
18 | import org.apache.tapestry.IActionListener; | |
19 | import org.apache.tapestry.IMarkupWriter; | |
20 | import org.apache.tapestry.IRequestCycle; | |
21 | import org.apache.tapestry.link.DirectLink; | |
22 | import org.apache.tapestry.listener.ListenerInvoker; | |
23 | ||
24 | /** | |
25 | * Invokes a listener method, passing listener parameters. This is used when a page or component | |
26 | * needs some setup logic that can be best accomplished in Java code. | |
27 | * | |
28 | * @author Howard M. Lewis Ship | |
29 | * @since 4.0 | |
30 | */ | |
31 | public abstract class InvokeListener extends AbstractComponent | |
32 | { | |
33 | 2 | protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) |
34 | { | |
35 | 2 | Object[] parameters = DirectLink.constructServiceParameters(getParameters()); |
36 | ||
37 | 2 | try |
38 | { | |
39 | 2 | cycle.setListenerParameters(parameters); |
40 | ||
41 | 2 | getListenerInvoker().invokeListener(getListener(), this, cycle); |
42 | } | |
43 | finally | |
44 | { | |
45 | 2 | cycle.setListenerParameters(null); |
46 | } | |
47 | } | |
48 | ||
49 | /** Parameter */ | |
50 | public abstract IActionListener getListener(); | |
51 | ||
52 | /** Parameter */ | |
53 | public abstract Object getParameters(); | |
54 | ||
55 | /** Injected */ | |
56 | public abstract ListenerInvoker getListenerInvoker(); | |
57 | } |
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