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    
015    package org.apache.tapestry5.validator;
016    
017    import org.apache.tapestry5.Field;
018    import org.apache.tapestry5.MarkupWriter;
019    import org.apache.tapestry5.ValidationException;
020    import org.apache.tapestry5.ioc.MessageFormatter;
021    import org.apache.tapestry5.services.FormSupport;
022    
023    public 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    }