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


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.enhance.EnhancementOperation;
21 import org.apache.tapestry.enhance.InjectAssetWorker;
22 import org.apache.tapestry.spec.IComponentSpecification;
23
24 /**
25  * Injects an asset.
26  *
27  * @author Howard M. Lewis Ship
28  * @since 4.0
29  * @see org.apache.tapestry.annotations.InjectAsset
30  * @see org.apache.tapestry.enhance.InjectAssetWorker
31  */
32 public class InjectAssetAnnotationWorker implements MethodAnnotationEnhancementWorker
33 {
34     InjectAssetWorker _delegate;
35
36     InjectAssetAnnotationWorker(InjectAssetWorker delegate)
37     {
38         _delegate = delegate;
39     }
40
41     public InjectAssetAnnotationWorker()
42     {
43         this(new InjectAssetWorker());
44     }
45
46     public void performEnhancement(EnhancementOperation op, IComponentSpecification spec,
47             Method JavaDoc method, Location location)
48     {
49         InjectAsset as = method.getAnnotation(InjectAsset.class);
50         
51         String JavaDoc propertyName = AnnotationUtils.getPropertyName(method);
52
53         _delegate.injectAsset(op, as.value(), propertyName);
54     }
55
56 }
57
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