001// Copyright 2010 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.validator; 016 017import org.apache.tapestry5.Field; 018import org.apache.tapestry5.MarkupWriter; 019import org.apache.tapestry5.ValidationException; 020import org.apache.tapestry5.ioc.MessageFormatter; 021import org.apache.tapestry5.services.FormSupport; 022 023public class None extends AbstractValidator<Void, Object> 024{ 025 public None() 026 { 027 super(null, Object.class, "required"); 028 } 029 030 /** Does nothing. */ 031 public void render(Field field, Void constraintValue, MessageFormatter formatter, MarkupWriter writer, 032 FormSupport formSupport) 033 { 034 } 035 036 /** Does nothing. */ 037 public void validate(Field field, Void constraintValue, MessageFormatter formatter, Object value) 038 throws ValidationException 039 { 040 } 041}