001// Copyright 2012 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.beanvalidator; 016 017import org.apache.tapestry5.MarkupWriter; 018 019import java.util.Map; 020import java.util.Set; 021 022/** 023 * Applies client-side validation constraints based on a particular JSR 303 annotation. 024 * <p/> 025 * Note: converted from a final class to an interface as part of 5.4. 026 */ 027public interface ClientConstraintDescriptor 028{ 029 /** 030 * The annotation class that drives this descriptor. 031 */ 032 Class getAnnotationClass(); 033 034 /** 035 * Names of attributes from the {@link javax.validation.metadata.ConstraintDescriptor} that are relevant. 036 */ 037 Set<String> getAttributes(); 038 039 /** 040 * Applies the validation 041 * 042 * @param writer 043 * used to write new attributes into the HTML tag for the user interface element 044 * @param message 045 * error message to present to user when the constraint is violated 046 * @param attributes 047 * {@linkplain #getAttributes()} selected attributes} from the {@link javax.validation.metadata.ConstraintDescriptor} 048 */ 049 void applyClientValidation(MarkupWriter writer, String message, Map<String, Object> attributes); 050}