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}