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


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.spec.IComponentSpecification;
22 import org.apache.tapestry.spec.IPropertySpecification;
23 import org.apache.tapestry.spec.PropertySpecification;
24
25 /**
26  * Allow a property to be marked as persistent, and (optionally) allows a strategy to be set. Works
27  * by adding a new {@link org.apache.tapestry.spec.IPropertySpecification} to the
28  * {@link org.apache.tapestry.spec.IComponentSpecification}.
29  *
30  * @author Howard M. Lewis Ship
31  * @since 4.0
32  * @see org.apache.tapestry.annotations.Persist
33  */
34 public class PersistAnnotationWorker implements MethodAnnotationEnhancementWorker
35 {
36     public void performEnhancement(EnhancementOperation op, IComponentSpecification spec,
37             Method JavaDoc method, Location location)
38     {
39         Persist p = method.getAnnotation(Persist.class);
40
41         String JavaDoc propertyName = AnnotationUtils.getPropertyName(method);
42         String JavaDoc stategy = p.value();
43
44         IPropertySpecification pspec = new PropertySpecification();
45
46         pspec.setName(propertyName);
47         pspec.setPersistence(stategy);
48         pspec.setLocation(location);
49
50         spec.addPropertySpecification(pspec);
51     }
52
53 }
54
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