01: // Copyright 2006 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // 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.internal.services;
16:
17: import org.apache.tapestry.annotations.Retain;
18: import org.apache.tapestry.model.MutableComponentModel;
19: import org.apache.tapestry.services.ClassTransformation;
20: import org.apache.tapestry.services.ComponentClassTransformWorker;
21:
22: /**
23: * Identifies fields with the {@link org.apache.tapestry.annotations.Retain} annotation, and
24: * "claims" them so that no special work will occur on them.
25: *
26: *
27: */
28: public final class RetainWorker implements
29: ComponentClassTransformWorker {
30: /**
31: * Claims each field with the {@link org.apache.tapestry.annotations.Retain} annotation,
32: * claiming it using the annotation as the tag.
33: */
34: public void transform(ClassTransformation transformation,
35: MutableComponentModel model) {
36: for (String fieldName : transformation
37: .findFieldsWithAnnotation(Retain.class)) {
38: Retain annotation = transformation.getFieldAnnotation(
39: fieldName, Retain.class);
40:
41: transformation.claimField(fieldName, annotation);
42: }
43: }
44:
45: }
|