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.ioc.AnnotationProvider;
21: import org.apache.tapestry.services.ValidationConstraintGenerator;
22:
23: /**
24: * Adds a "required" constraint for any property of whose type is a primitive (not a wrapper or
25: * reference) type.
26: */
27: public class PrimitiveFieldConstraintGenerator implements
28: ValidationConstraintGenerator {
29: private final List<String> REQUIRED = Arrays.asList("required");
30:
31: public List<String> buildConstraints(Class propertyType,
32: AnnotationProvider annotationProvider) {
33: return propertyType.isPrimitive() ? REQUIRED : null;
34: }
35:
36: }
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