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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
ExpressionBeanInitializer.java | - | 0% | 0% | 0% |
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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.bean; | |
16 | ||
17 | import org.apache.hivemind.ApplicationRuntimeException; | |
18 | import org.apache.tapestry.IBeanProvider; | |
19 | import org.apache.tapestry.IComponent; | |
20 | import org.apache.tapestry.services.ExpressionEvaluator; | |
21 | ||
22 | /** | |
23 | * Initializes a helper bean property from an OGNL expression (relative to the bean's | |
24 | * {@link IComponent}). | |
25 | * | |
26 | * @author Howard Lewis Ship | |
27 | * @since 2.2 | |
28 | */ | |
29 | ||
30 | public class ExpressionBeanInitializer extends AbstractBeanInitializer | |
31 | { | |
32 | protected String _expression; | |
33 | ||
34 | private final ExpressionEvaluator _evaluator; | |
35 | ||
36 | 0 | public ExpressionBeanInitializer(ExpressionEvaluator evaluator) |
37 | { | |
38 | 0 | _evaluator = evaluator; |
39 | } | |
40 | ||
41 | 0 | public void setBeanProperty(IBeanProvider provider, Object bean) |
42 | { | |
43 | 0 | IComponent component = provider.getComponent(); |
44 | ||
45 | 0 | try |
46 | { | |
47 | 0 | Object value = _evaluator.read(component, _expression); |
48 | ||
49 | 0 | setBeanProperty(bean, value); |
50 | } | |
51 | catch (Exception ex) | |
52 | { | |
53 | 0 | throw new ApplicationRuntimeException(ex.getMessage(), getLocation(), ex); |
54 | } | |
55 | } | |
56 | ||
57 | /** @since 3.0 * */ | |
58 | ||
59 | 0 | public String getExpression() |
60 | { | |
61 | 0 | return _expression; |
62 | } | |
63 | ||
64 | /** @since 3.0 * */ | |
65 | ||
66 | 0 | public void setExpression(String expression) |
67 | { | |
68 | 0 | _expression = expression; |
69 | } | |
70 | ||
71 | } |
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