Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
SecondaryAnnotationWorker |
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| 1.0;1 |
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; | |
18 | ||
19 | import org.apache.hivemind.Resource; | |
20 | import org.apache.tapestry.enhance.EnhancementOperation; | |
21 | import org.apache.tapestry.spec.IComponentSpecification; | |
22 | ||
23 | /** | |
24 | * A chain-of-command interface for secondary annotation workers; workers that must execute | |
25 | * <em>after</em> other workers. | |
26 | * | |
27 | * @author Howard M. Lewis Ship | |
28 | */ | |
29 | public interface SecondaryAnnotationWorker | |
30 | { | |
31 | /** | |
32 | * Sees if the particular worker can process the method (because it handles an annotation | |
33 | * associated with the method). | |
34 | * | |
35 | * @param method | |
36 | * to check | |
37 | * @return true if the worker should be invoked, false otherwise | |
38 | */ | |
39 | boolean canEnhance(Method method); | |
40 | ||
41 | /** | |
42 | * Invoked an <em>all</em> workers in the command chain, if <em>any</em> worker returns true | |
43 | * from {@link #canEnhance(Method)}. | |
44 | * | |
45 | * @param op | |
46 | * enhancement operation | |
47 | * @param spec | |
48 | * specification for the component being enhanced | |
49 | * @param method | |
50 | * the method | |
51 | * @param classResource | |
52 | * a resource representing the class; combined with the method a | |
53 | * {@link org.apache.hivemind.Location} can be created | |
54 | */ | |
55 | void peformEnhancement(EnhancementOperation op, IComponentSpecification spec, | |
56 | Method method, Resource classResource); | |
57 | } |