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Java > Open Source Codes > org > apache > tapestry > annotations > InjectStateAnnotationWorker


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.annotations;
16
17 import java.lang.reflect.Method JavaDoc;
18
19 import org.apache.hivemind.Location;
20 import org.apache.tapestry.engine.state.ApplicationStateManager;
21 import org.apache.tapestry.enhance.EnhancementOperation;
22 import org.apache.tapestry.enhance.InjectStateWorker;
23 import org.apache.tapestry.spec.IComponentSpecification;
24
25 /**
26  * Injects an Application State Object.
27  *
28  * @author Howard M. Lewis Ship
29  * @since 4.0
30  * @see org.apache.tapestry.annotations.InjectState
31  * @see org.apache.tapestry.enhance.InjectStateWorker
32  */
33 public class InjectStateAnnotationWorker implements MethodAnnotationEnhancementWorker
34 {
35     final InjectStateWorker _delegate;
36
37     InjectStateAnnotationWorker(InjectStateWorker delegate)
38     {
39         _delegate = delegate;
40     }
41
42     public InjectStateAnnotationWorker()
43     {
44         this(new InjectStateWorker());
45     }
46
47     public void performEnhancement(EnhancementOperation op, IComponentSpecification spec,
48             Method JavaDoc method, Location location)
49     {
50         InjectState is = method.getAnnotation(InjectState.class);
51
52         String JavaDoc propertyName = AnnotationUtils.getPropertyName(method);
53
54         _delegate.injectState(op, is.value(), propertyName);
55     }
56
57     public void setApplicationStateManager(ApplicationStateManager applicationStateManager)
58     {
59         _delegate.setApplicationStateManager(applicationStateManager);
60     }
61 }
62
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