01: // Copyright 2007 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.beaneditor;
16:
17: import java.util.Arrays;
18: import java.util.List;
19:
20: import org.apache.tapestry.beaneditor.Validate;
21: import org.apache.tapestry.ioc.AnnotationProvider;
22: import org.apache.tapestry.services.ValidationConstraintGenerator;
23:
24: /**
25: * Checks for the {@link Validate} annotation, and extracts its value to form the result.
26: */
27: public class ValidateAnnotationConstraintGenerator implements
28: ValidationConstraintGenerator {
29:
30: public List<String> buildConstraints(Class propertyType,
31: AnnotationProvider annotationProvider) {
32: Validate annotation = annotationProvider
33: .getAnnotation(Validate.class);
34:
35: if (annotation == null)
36: return null;
37:
38: return Arrays.asList(annotation.value().split(","));
39: }
40:
41: }
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