    001// Copyright 2007 The Apache Software Foundation
    002//
    003// Licensed under the Apache License, Version 2.0 (the "License");
    004// you may not use this file except in compliance with the License.
    005// You may obtain a copy of the License at
    006//
    007//     http://www.apache.org/licenses/LICENSE-2.0
    008//
    009// Unless required by applicable law or agreed to in writing, software
    010// distributed under the License is distributed on an "AS IS" BASIS,
    011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012// See the License for the specific language governing permissions and
    013// limitations under the License.
    014
    015package org.apache.tapestry5.internal.beaneditor;
    016
    017import org.apache.tapestry5.commons.AnnotationProvider;
    018import org.apache.tapestry5.services.ValidationConstraintGenerator;
    019
    020import java.util.Arrays;
    021import java.util.List;
    022
    023/**
    024 * Adds a "required" constraint for any property of whose type is a primitive (not a wrapper or reference) type.
    025 */
    026public class PrimitiveFieldConstraintGenerator implements ValidationConstraintGenerator
    027{
    028    private final List<String> REQUIRED = Arrays.asList("required");
    029
    030    @Override
    031    public List<String> buildConstraints(Class<?> propertyType, AnnotationProvider annotationProvider)
    032    {
    033        return propertyType.isPrimitive() && !"boolean".equals(propertyType.getName()) ? REQUIRED : null;
    034    }
    035
    036}