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Java > Open Source Codes > org > apache > tapestry > enhance > InjectEnhancementWorker


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.enhance;
16
17 import org.apache.tapestry.spec.InjectSpecification;
18
19 /**
20  * A kind of enhancement worker dedicated to injection, based on the <inject> element of the
21  * specification. There are different types of injection which match up to different implementations
22  * of this interface (i.e., the Strategy pattern).
23  *
24  * @author Howard M. Lewis Ship
25  * @since 4.0
26  * @see org.apache.tapestry.spec.InjectSpecification
27  * @see org.apache.tapestry.enhance.DispatchToInjectWorker
28  */
29 public interface InjectEnhancementWorker
30 {
31     /**
32      * Perform the enhancement defined by the {@link org.apache.tapestry.spec.InjectSpecification}.
33      * Thrown runtime exceptions are caught and reported by the invoker.
34      */
35
36     public void performEnhancement(EnhancementOperation op, InjectSpecification spec);
37
38 }
39
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